| 0 | PI 323337 | 'Aurescens' | Thuja occidentalis L. | Poland | | | Historic | 1990 | COLLECTED | | | | | | | | 1714241 | PI 323337 |
| 1 | PI 518497 | 9005060 | Thuja occidentalis L. | Wisconsin, United States | NA | | Not Available | 1988 | DEVELOPED | | | | | | Cultivated material | Fast growing, superior accession. Used for field and farmstead windbreaks and for screen or border plantings in recreational and urban development. Adapted to its natural range in the Great Lakes States in soil types from wet or poorly drained to well drained sandy loams. | 1413433 | PI 518497 |
| 2 | PI 477011 | AFFINITY | Thuja occidentalis L. | Minnesota, United States | NA | | Not Available | 1983 | COLLECTED | | Blackduck | 47.73300900, -94.54857600 | | | Wild material | Superior growth in Jasper-Pulaski State Nursery, Medaryville, Indiana. Considered superior to others as it is fast growing. Compact, upright tree with good seedling vigor. Tree small to medium size, 10-15m x 30-60cm dia. Open grown: dense, wide-based, conic-columnar crown to ground. Roots shallow and spreading. Leaves scalelike in 2 pairs, opposite, 4- ranked, appressed, conspicuous glandular spots, 3-6mm long, yellow-green, often browning in winter. | 1371947 | PI 477011 |
| 3 | PI 324119 | 'Beverleyensis' | Thuja sp. | Leinster, Ireland | | | Historic | 1967 | COLLECTED | | | | | | | | 1714800 | PI 324119 |
| 4 | PI 323338 | 'Hoseri' | Thuja occidentalis L. | Poland | NC7 |  | | 1967 | DONATED | 10/19/1967 | | | | | Cultivar | | 1240358 | PI 323338 |
| 5 | PI 317836 | 'Pygmaea' | Thuja occidentalis L. | United Kingdom | NA | | Not Available | 1966 | COLLECTED | | | | | | Cultivar | | 1236576 | PI 317836 |
| 6 | PI 317837 | 'Doone Valley' | Thuja plicata Donn ex D. Don | United Kingdom | | | Historic | 1966 | COLLECTED | | | | | | | | 1709236 | PI 317837 |
| 7 | PI 317838 | 'Eriocoides' | Thuja plicata Donn ex D. Don | United Kingdom | | | Historic | 1966 | COLLECTED | | | | | | | | 1709237 | PI 317838 |
| 8 | PI 317296 | Col. No. K-375 | Thuja koraiensis Nakai | Korea, South | | | Historic | 1966 | COLLECTED | | Alpine area near summit of Mt. Sorak, Kangwando | | 1530 | | | | 1708798 | PI 317296 |
| 9 | PI 317297 | Col. No. K-331 | Thuja koraiensis Nakai | Korea, South | | | Historic | 1966 | COLLECTED | | Along trail on western slope of Mt. Sorak | | 900 | | | | 1708799 | PI 317297 |
| 10 | PI 290816 | | Thuja occidentalis L. | Canada | | | Historic | 1963 | COLLECTED | | | | | | | | 1693039 | PI 290816 |
| 11 | PI 289746 | | Thuja occidentalis L. f. filiformis (Beissn.) Rehder | Netherlands | | | Historic | 1963 | COLLECTED | | | | | | | | 1692251 | PI 289746 |
| 12 | PI 280190 | 'Buchananii' | Thuja occidentalis L. | Netherlands | | | Historic | 1962 | COLLECTED | | | | | | | | 1685201 | PI 280190 |
| 13 | PI 280191 | 'Variegata' | Thuja plicata Donn ex D. Don | Netherlands | | | Historic | 1962 | COLLECTED | | | | | | | | 1685202 | PI 280191 |
| 14 | PI 280192 | 'Recurvata' | Thuja occidentalis L. | Netherlands | | | Historic | 1962 | COLLECTED | | | | | | | | 1685203 | PI 280192 |
| 15 | PI 280193 | 'Wagneri' | Thuja occidentalis L. | Netherlands | NA | | Not Available | 1962 | COLLECTED | | | | | | Cultivar | | 1685204 | PI 280193 |
| 16 | PI 280194 | 'Stoneham Gold' | Thuja plicata Donn ex D. Don | Netherlands | | | Historic | 1962 | COLLECTED | | | | | | | | 1685205 | PI 280194 |
| 17 | PI 266758 | 'Beaufort' | Thuja occidentalis L. | | NA | | Not Available | 1960 | | | | | | | Cultivar | | 2158568 | PI 266758 |
| 18 | PI 266469 | 'Malonyana' | Thuja occidentalis L. | | NA | | Not Available | 1960 | | | | | | | Cultivar | The cultivar epithet was not printed in Plant Inventory No. 168. | 2158569 | PI 266469 |
| 19 | PI 266632 | | Thuja occidentalis L. | | NA | | Not Available | 1960 | | | | | | | Cultivar | | 2158570 | PI 266632 |
| 20 | PI 261573 | 'Wareana' | Thuja occidentalis L. f. lutescens (Beissn.) C. K. Schneid. | England, United Kingdom | | | Historic | 1959 | DONATED | 12/02/1959 | | | | | | | 1566083 | PI 261573 |
| 21 | PI 261574 | 'Aurea Rogersii' | Thuja plicata Donn ex D. Don | England, United Kingdom | | | Historic | 1959 | DONATED | 12/02/1959 | | | | | | | 1566084 | PI 261574 |
| 22 | PI 261575 | 'Zebrina' | Thuja plicata Donn ex D. Don | England, United Kingdom | | | Historic | 1959 | DONATED | 12/02/1959 | | | | | | | 1566085 | PI 261575 |
| 23 | PI 104144 | | Thuja koraiensis Nakai | Unknown | | | Historic | 1934 | COLLECTED | | Chosen | | | | | | 1792531 | PI 104144 |
| 24 | PI 39680 | | Thuja sp. | China | | | Historic | 1914 | COLLECTED | | | | | | | | 1604349 | PI 39680 |
| 25 | PI 12237 | | Thuja plicata Donn ex D. Don | Washington, United States | | | Historic | 1904 | COLLECTED | | | | | | | | 1556318 | PI 12237 |
| 26 | PI 1780 | | Thuja plicata Donn ex D. Don | France | | | Historic | 1898 | COLLECTED | | | | | | | | 1534835 | PI 1780 |
| 27 | FSNS 9705 | FSNS 9705 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159285 | FSNS 9705 |
| 28 | FSNS 9704 | FSNS 9704 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159284 | FSNS 9704 |
| 29 | FSNS 9703 | FSNS 9703 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159283 | FSNS 9703 |
| 30 | FSNS 9702 | FSNS 9702 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159282 | FSNS 9702 |
| 31 | FSNS 9701 | FSNS 9701 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159281 | FSNS 9701 |
| 32 | FSNS 9700 | FSNS 9700 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159280 | FSNS 9700 |
| 33 | FSNS 9699 | FSNS 9699 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159279 | FSNS 9699 |
| 34 | FSNS 9698 | FSNS 9698 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159278 | FSNS 9698 |
| 35 | FSNS 9697 | FSNS 9697 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159277 | FSNS 9697 |
| 36 | FSNS 9696 | FSNS 9696 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159276 | FSNS 9696 |
| 37 | FSNS 9695 | FSNS 9695 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159275 | FSNS 9695 |
| 38 | FSNS 9694 | FSNS 9694 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159274 | FSNS 9694 |
| 39 | FSNS 9693 | FSNS 9693 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159273 | FSNS 9693 |
| 40 | FSNS 9692 | FSNS 9692 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159272 | FSNS 9692 |
| 41 | FSNS 9691 | FSNS 9691 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159271 | FSNS 9691 |
| 42 | FSNS 9690 | FSNS 9690 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159270 | FSNS 9690 |
| 43 | FSNS 9689 | FSNS 9689 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159269 | FSNS 9689 |
| 44 | FSNS 9688 | FSNS 9688 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159268 | FSNS 9688 |
| 45 | FSNS 9687 | FSNS 9687 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159267 | FSNS 9687 |
| 46 | FSNS 9686 | FSNS 9686 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159266 | FSNS 9686 |
| 47 | FSNS 9685 | FSNS 9685 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159265 | FSNS 9685 |
| 48 | FSNS 9684 | FSNS 9684 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159264 | FSNS 9684 |
| 49 | FSNS 9683 | FSNS 9683 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159263 | FSNS 9683 |
| 50 | FSNS 9682 | FSNS 9682 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159262 | FSNS 9682 |
| 51 | FSNS 9681 | FSNS 9681 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159261 | FSNS 9681 |
| 52 | FSNS 9680 | FSNS 9680 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159260 | FSNS 9680 |
| 53 | FSNS 9679 | FSNS 9679 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159259 | FSNS 9679 |
| 54 | FSNS 9678 | FSNS 9678 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159258 | FSNS 9678 |
| 55 | FSNS 9677 | FSNS 9677 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159257 | FSNS 9677 |
| 56 | FSNS 9676 | FSNS 9676 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159256 | FSNS 9676 |
| 57 | FSNS 9675 | FSNS 9675 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159255 | FSNS 9675 |
| 58 | FSNS 9674 | FSNS 9674 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159254 | FSNS 9674 |
| 59 | FSNS 9673 | FSNS 9673 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159253 | FSNS 9673 |
| 60 | FSNS 9672 | FSNS 9672 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159252 | FSNS 9672 |
| 61 | FSNS 9671 | FSNS 9671 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159251 | FSNS 9671 |
| 62 | FSNS 9670 | FSNS 9670 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159250 | FSNS 9670 |
| 63 | FSNS 9669 | FSNS 9669 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159249 | FSNS 9669 |
| 64 | FSNS 9668 | FSNS 9668 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159248 | FSNS 9668 |
| 65 | FSNS 9667 | FSNS 9667 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159247 | FSNS 9667 |
| 66 | FSNS 9666 | FSNS 9666 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159246 | FSNS 9666 |
| 67 | FSNS 9665 | FSNS 9665 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159245 | FSNS 9665 |
| 68 | FSNS 9664 | FSNS 9664 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159244 | FSNS 9664 |
| 69 | FSNS 9663 | FSNS 9663 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159243 | FSNS 9663 |
| 70 | FSNS 9662 | FSNS 9662 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159242 | FSNS 9662 |
| 71 | FSNS 9661 | FSNS 9661 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159241 | FSNS 9661 |
| 72 | FSNS 9660 | FSNS 9660 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159240 | FSNS 9660 |
| 73 | FSNS 9659 | FSNS 9659 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159239 | FSNS 9659 |
| 74 | FSNS 9658 | FSNS 9658 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159238 | FSNS 9658 |
| 75 | FSNS 9657 | FSNS 9657 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159237 | FSNS 9657 |
| 76 | FSNS 9656 | FSNS 9656 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159236 | FSNS 9656 |
| 77 | FSNS 9655 | FSNS 9655 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159235 | FSNS 9655 |
| 78 | FSNS 9654 | FSNS 9654 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159234 | FSNS 9654 |
| 79 | FSNS 9653 | FSNS 9653 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159233 | FSNS 9653 |
| 80 | FSNS 9652 | FSNS 9652 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159232 | FSNS 9652 |
| 81 | FSNS 9651 | FSNS 9651 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159231 | FSNS 9651 |
| 82 | FSNS 9650 | FSNS 9650 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159230 | FSNS 9650 |
| 83 | FSNS 9649 | FSNS 9649 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159229 | FSNS 9649 |
| 84 | FSNS 9648 | FSNS 9648 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159228 | FSNS 9648 |
| 85 | FSNS 9647 | FSNS 9647 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159227 | FSNS 9647 |
| 86 | FSNS 9646 | FSNS 9646 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159226 | FSNS 9646 |
| 87 | FSNS 9645 | FSNS 9645 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159225 | FSNS 9645 |
| 88 | FSNS 9644 | FSNS 9644 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159224 | FSNS 9644 |
| 89 | FSNS 9643 | FSNS 9643 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159223 | FSNS 9643 |
| 90 | FSNS 9642 | FSNS 9642 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159222 | FSNS 9642 |
| 91 | FSNS 9641 | FSNS 9641 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159221 | FSNS 9641 |
| 92 | FSNS 9640 | FSNS 9640 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159220 | FSNS 9640 |
| 93 | FSNS 9639 | FSNS 9639 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159219 | FSNS 9639 |
| 94 | FSNS 9638 | FSNS 9638 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159218 | FSNS 9638 |
| 95 | FSNS 9637 | FSNS 9637 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159217 | FSNS 9637 |
| 96 | FSNS 9636 | FSNS 9636 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159216 | FSNS 9636 |
| 97 | FSNS 9635 | FSNS 9635 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159215 | FSNS 9635 |
| 98 | FSNS 9634 | FSNS 9634 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159214 | FSNS 9634 |
| 99 | FSNS 9633 | FSNS 9633 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159213 | FSNS 9633 |
| 100 | FSNS 9632 | FSNS 9632 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159212 | FSNS 9632 |
| 101 | FSNS 9631 | FSNS 9631 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159211 | FSNS 9631 |
| 102 | FSNS 9630 | FSNS 9630 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159210 | FSNS 9630 |
| 103 | FSNS 9629 | FSNS 9629 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159209 | FSNS 9629 |
| 104 | FSNS 9628 | FSNS 9628 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159208 | FSNS 9628 |
| 105 | FSNS 9627 | FSNS 9627 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159207 | FSNS 9627 |
| 106 | FSNS 9626 | FSNS 9626 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159206 | FSNS 9626 |
| 107 | FSNS 9625 | FSNS 9625 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159205 | FSNS 9625 |
| 108 | FSNS 9624 | FSNS 9624 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159204 | FSNS 9624 |
| 109 | FSNS 9623 | FSNS 9623 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159203 | FSNS 9623 |
| 110 | FSNS 9622 | FSNS 9622 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159202 | FSNS 9622 |
| 111 | FSNS 9621 | FSNS 9621 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159201 | FSNS 9621 |
| 112 | FSNS 9620 | FSNS 9620 | Thuja plicata Donn ex D. Don | | NTSL | | Not Available | 2023 | | | | | | | | | 2159200 | FSNS 9620 |
| 113 | NA 76133 | NA 76133 | Thuja sp. | | NA | | Not Available | 2023 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Thuja sp.. These plants look just like 'Green Giant'/ T. standishii x plicata neighboring them but ID can't be certain according to Sue Martin (asked on the last day before her retirement). Form received: unknown propagule type. | 2150597 | NA 76133 |
| 114 | NA 23208 | 'Wareana' | Thuja occidentalis L. | | NA | | Not Available | 2023 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Wareana'. | 2143913 | NA 23208 |
| 115 | NA 20939 | 'Recurva Nana' | Thuja occidentalis L. | | NA | | Not Available | 2023 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Recurva Nana'. From cuttings of NA 20939-H; propagation date uncertain. The parent accession, NA 20929, was received in 1962. Notes from the record of the parent accession: "Comments: Plant lost tag in 1977 accessioned as old USNA plant cv. indet. NA 41598 using 1964 map. S.F. Martin & E. Ley determined plant to be NA 20939." | 2143785 | NA 20939 |
| 116 | NA 20627 | 'Froebelii' | Thuja occidentalis L. | | NA | | Not Available | 2023 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Froebelii'. From cuttings of NA 20627-H; propagation date uncertain. The parent accession, NA 20627, was received in 1962. | 2143743 | NA 20627 |
| 117 | NA 87420 | 'Green Giant' | Thuja hybr. | | NA | | Not Available | 2023 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja 'Green Giant'. Plants donated to USNA after the 2023 FONA Plant Sale; any intermediate nursery sources are not recorded, but the plants are still packaged with Instant Hedge tags. Likely donated to FONA from a 2023 Mid-Atlantic Nursery Trade Show booth. | 2155355 | NA 87420 |
| 118 | NA 87429 | 'Grovepli' | Thuja plicata Donn ex D. Don | | NA | | Not Available | 2023 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja plicata 'Grovepli' SPRING GROVE. Plants donated to USNA after the 2023 FONA Plant Sale; any intermediate nursery sources are not recorded, but the plants are still packaged with Proven Winners containers and tags. Plants likely donated to FONA from a 2023 Mid-Atlantic Nursery Trade Show booth. | 2155363 | NA 87429 |
| 119 | NA 86994 | 'Concesarini' | Thuja occidentalis L. | | NA | | Not Available | 2022 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Concesarini' PANCAKE. | 2155097 | NA 86994 |
| 120 | NA 86961 | 'Atrovirens' | Thuja plicata Donn ex D. Don | | NA | | Not Available | 2022 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja plicata 'Atrovirens'. | 2155071 | NA 86961 |
| 121 | NA 86939 | 'Smaragd' | Thuja occidentalis L. | | NA | | Not Available | 2022 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Smaragd'. Extra/leftover plants from an exhibit created by the U.S. Botanic Garden, donated to USNA. Note from the submitter: "no labels, but must be this variety based on process of elimination on the arborvitae options and what was requested." | 2155051 | NA 86939 |
| 122 | NA 86948 | 'Bobazam' | Thuja occidentalis L. | | NA | | Not Available | 2022 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Bobazam' MR. BOWLING BALL. Extra/leftover plants from an exhibit created by the U.S. Botanic Garden, donated to USNA. | 2155059 | NA 86948 |
| 123 | WLP 2484 | AS/TO/2021/017/117 | Thuja occidentalis L. | Illinois, United States | NA |  | | 2021 | COLLECTED | 08/26/2021 | State Route 71 along Illinois River located approximately 1.30 miles southwest of Ottawa, T33N R3E SW1/4 NE1/4 Sec. 15 | 41.33211800, -88.86347300 | 146 | Roadside at top of limestone cliff above Illinois River. | Wild material | Thuja occidentalis is a medium sized, evergreen tree that is native throughout northeastern North America stretching from Minnesota to Maine with scattered distributions in the Appalachian Mountains. In Illinois, Northern White Cedar was formerly listed as a state-threatened species, but delisted in 2004 (Mankowski 2012) and is localized to bluffs and cliffs of St. Peter sandstone and rocky outcroppings. Elsewhere, the species is abundant in sphagnum peat swamps, lake shorelines, and moist woods. This accession was collected on the southwest edge of the species native range and is one of the southern-most, known native localities in Illinois and thus may contain genetics for heat and drought tolerance. Genetics for this accessions were collected from two areas separated by approximately 6.50 miles. | 2120343 | WLP 2484 |
| 124 | NA 55339 | 'Sunkist' | Thuja occidentalis L. | | NA | | Not Available | 2021 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Sunkist'. From cuttings of NA 55339-H, propagated in 2021. | 2146074 | NA 55339 |
| 125 | NA 86691 | '4ever' | Thuja plicata Donn ex D. Don | | NA | | Not Available | 2020 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja plicata '4ever' GOLDY. Purchased for the collection by Joe Meny. | 2154847 | NA 86691 |
| 126 | NA 86690 | 'Degroot's Spire' | Thuja occidentalis L. | | NA | | Not Available | 2020 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Degroot's Spire'. Prior (nursery) source unknown; further information sought. | 2154846 | NA 86690 |
| 127 | WLP 1875 | NA 85394 | Thuja plicata Donn ex D. Don | Oregon, United States | NA | | | 2018 | COLLECTED | 07/01/2016 | Willamette National Forest: South Fork McKenzie RD. | | | | | | 2108897 | WLP 1875 |
| 128 | NA 85335 | 'Amber Glow' | Thuja occidentalis L. | | NA | | Not Available | 2018 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Amber Glow'. | 2154174 | NA 85335 |
| 129 | NA 85336 | 'Stoneham Gold' | Thuja plicata Donn ex D. Don | | NA | | Not Available | 2018 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja plicata 'Stoneham Gold'. | 2154175 | NA 85336 |
| 130 | NA 85047 | 'Danica' | Thuja occidentalis L. | | NA | | Not Available | 2018 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Danica'. Given by FONA following the 2018 FONA Plant Sale; they acquired it at the 2018 MANTS show in Baltimore this January as a donation from the Serendipity Nursery booth. | 2153987 | NA 85047 |
| 131 | NA 85048 | 'Bobazam' | Thuja occidentalis L. | | NA | | Not Available | 2018 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Bobazam' MR. BOWLING BALL. Given by FONA following the 2018 FONA Plant Sale; they acquired it at the 2018 MANTS show in Baltimore this January as a donation from the Youngblood Nursery booth. | 2153988 | NA 85048 |
| 132 | NA 85056 | 'Degroot's Spire' | Thuja occidentalis L. | | NA | | Not Available | 2018 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Degroot's Spire'. Given by FONA following the 2018 FONA Plant Sale; they purchased it for the sale, but their source is at present unknown. | 2153994 | NA 85056 |
| 133 | NA 20640 | 'Stoneham Gold' | Thuja plicata Donn ex D. Don | | NA | | Not Available | 2018 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja plicata 'Stoneham Gold'. From cuttings of NA 20640-H (recorded at the time of propagation as NA 84649-H, believed at the time of accessioning to be an old plant of T. occidentalis 'Aureospicata'.] From the record of the parent accession, NA 20640: This accession was thought to be lost; a plant of uncertain origin believed to be T. occidentalis 'Aureospicata' was later assigned NA 84649 for tracking, but was later determined to be this accession. The original plant died in 2019 or 2020, but was propagated in 2018, with the propagules assigned now to NA 20640.01. -SBL | 2143746 | NA 20640 |
| 134 | NA 87968 | CBG-7597 | Thuja occidentalis L. | Illinois, United States | NA |  | | 2017 | | | | | | | Wild material | | 1954885 | NA 87968 |
| 135 | NA 84638 | NA 84638 | Thuja occidentalis L. | Ontario, Canada | NA | | Not Available | 2017 | COLLECTED | 07/01/1995 | North of Toronto. | 0.00000000, 0.00000000 | | | | | 2108756 | NA 84638 |
| 136 | NA 74629 | 'Green Sport' | Thuja plicata Donn ex D. Don | | NA | | Not Available | 2017 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja plicata 'Green Sport'. Rooted from a cutting of 74629-H in 2017, the same year the parent plant died. | 2150094 | NA 74629 |
| 137 | NA 20828 | 'Wareana Lutescens' | Thuja occidentalis L. | | NA | | Not Available | 2013 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Wareana Lutescens'. From cuttings of NA 20828-H, propagated in 2013. | 2143771 | NA 20828 |
| 138 | NA 81129 | 'Grovepli' | Thuja plicata Donn ex D. Don | | NA | | Not Available | 2012 | | | | | | | | | 1950356 | NA 81129 |
| 139 | NA 20225 | 'Cuprea' | Thuja plicata Donn ex D. Don | | NA | | Not Available | 2012 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja plicata 'Cuprea'. From cuttings of NA 20225-H; propagation year is unknown, but is believed to be between 2010 and 2012 based on the size of the plant, and the date of receipt has been estimated conservatively based on this. | 2143712 | NA 20225 |
| 140 | NA 20826 | 'Minima' | Thuja occidentalis L. | | NA | | Not Available | 2011 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Minima'. From a cutting of NA 20826-J; propagation date is slightly uncertain, but probably propagated in 2010 or 2011. | 2143770 | NA 20826 |
| 141 | NA 80009 | 'Yellow Ribbon' | Thuja occidentalis L. | | NA | | Not Available | 2011 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Yellow Ribbon'. Believed to have been propagated in 2011 when material was first received, based on size of plants. | 2152012 | NA 80009 |
| 142 | NA 80012 | 'Teddy' | Thuja occidentalis L. | | NA | | Not Available | 2011 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Teddy'. From cuttings of NA 80012-H taken about 2011. | 2152014 | NA 80012 |
| 143 | MIA 36541 | 'Glauca Prostrata' | Thuja koraiensis Nakai | Florida, United States | MIA | | Not Available | 2011 | DONATED | 06/20/2011 | | | | | | | 1881512 | MIA 36541 |
| 144 | MIA 36542 | MBC 20100500 | Thuja plicata Donn ex D. Don | Florida, United States | MIA | | Not Available | 2011 | DONATED | 06/20/2011 | | | | | | | 1881513 | MIA 36542 |
| 145 | MIA 36543 | MBC 20100499 | Thuja standishii (Gordon) Carrière | Florida, United States | MIA | | Not Available | 2011 | DONATED | 06/20/2011 | | | | | | | 1881514 | MIA 36543 |
| 146 | MIA 36544 | 'Wakehurst' | Thuja standishii (Gordon) Carrière | Florida, United States | MIA | | Not Available | 2011 | DONATED | 06/20/2011 | | | | | | | 1881515 | MIA 36544 |
| 147 | NA 46333 | 'Tiny Tim' | Thuja occidentalis L. | | NA | | Not Available | 2011 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Tiny Tim'. From cuttings of NA 46333-H, propagated in 2011. Notes from the parent accession, NA 46333: Original plant in Bed 3, most of it stolen; remaining plant brought in GH (11/88) and nursed back to health. Replaced in Bed #3 spring 1989. | 2145267 | NA 46333 |
| 148 | NA 10327 | 'Nigra' | Thuja occidentalis L. | | NA | | Not Available | 2010 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Nigra'. From cuttings of NA 10327-H. Likely propagated in 2010 or 2011 following snow damage to the collection or from efforts to rejuvenate some accessions with younger plants. [From record of NA 10327: Thuja occidentalis 'Wintergreen Arborvitae' -- not listed as such in Kelsey's Catalog. Kelsey lists T. occidentalis 'Nigra' Wintergreen pyramidal arborvitae.] | 2143351 | NA 10327 |
| 149 | NA 12474 | 'Minima' | Thuja occidentalis L. | | NA | | Not Available | 2010 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Minima'. From cuttings of NA 12474-CH. Presumed to have been propagated in 2010 following snow damage. | 2143504 | NA 12474 |
| 150 | NA 14366 | 'Hetz Midget' | Thuja occidentalis L. | | NA | | Not Available | 2010 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Hetz Midget'. From cuttings of 14366-H taken about 2010. Notes from parent accession (NA 14366): Source: Collected from William Gotelli's collection by S. G. March. 1955 Green Ridge Nursery. Name reference: x 2/17/65 NRH to National Arboretum. Thuja occidentalis 'Hetz's Midget' was one of our discoveries. The parent plant was found in a batch of Thuja occidentalis seedlings growing at Fairview during the early 1930's. The most noteworthy characteristic is its extreme slow rate of growth. It makes a very dense rounded globe and 15 year old plants seldom exceed 18 in. in width or height, and in most cases are much less than this. (8/64) 6 plants 6 in. | 2143542 | NA 14366 |
| 151 | NA 18304 | 'Globosa Rheindiana' | Thuja occidentalis L. | | NA | | Not Available | 2010 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Globosa Rheindiana'. From cuttings of 18304-H taken about 2010. Notes from parent accession (NA 18304): Reference: x12/10/64 Montreal Bot. Garden to SGM [Sylvester G. March] (one or more of this variety from Gotelli may have come from this source.) A mound-like plant with dark green foliage. Makes a plant about 3' across at the base in 10 years. Much like Thuja occidentalis 'Little Gem' except perhaps for its flat top and possibly for the more flattened sprays of year's growth. (Description from the 1965 USNA Conifer Distribution List.) | 2143638 | NA 18304 |
| 152 | NA 20208 | 'Alba' | Thuja occidentalis L. | | NA | | Not Available | 2010 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Alba'. From cuttings of NA 20208-H taken about 2010. The ID of this material is being questioned; if it is incorrect, it is not known whether the original accession (now dead) was incorrect or if the propagules were mixed up with those of another accession. | 2143708 | NA 20208 |
| 153 | NA 20215 | 'Minima' | Thuja occidentalis L. | | NA | | Not Available | 2010 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Minima'. From cuttings of 20215-CH taken about 2010. | 2143709 | NA 20215 |
| 154 | NA 20221 | 'Globosa' | Thuja occidentalis L. | | NA | | Not Available | 2010 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Globosa'. From cuttings of NA 20221-H taken around 2010. | 2143711 | NA 20221 |
| 155 | NA 20431 | 'Minima' | Thuja occidentalis L. | | NA | | Not Available | 2010 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Minima'. From cuttings of NA 20431-CH. Presumed to have been propagated in 2010 following snow damage. | 2143723 | NA 20431 |
| 156 | NA 20620 | 'Hudsonica' | Thuja occidentalis L. | | NA | | Not Available | 2010 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Hudsonica'. From cuttings of NA 20620-H taken about 2010. | 2143740 | NA 20620 |
| 157 | NA 20625 | 'Rheingold' | Thuja occidentalis L. | | NA | | Not Available | 2010 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Rheingold'. From cuttings of NA 20625-H. Likely propagated in 2010 or 2011 following snow damage to the collection or from efforts to rejuvenate some accessions with younger plants. | 2143742 | NA 20625 |
| 158 | NA 20631 | 'Recurva Nana' | Thuja occidentalis L. | | NA | | Not Available | 2010 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Recurva Nana'. From cuttings of NA 20631-H taken about 2010. | 2143744 | NA 20631 |
| 159 | NA 20819 | 'Froebelii' | Thuja occidentalis L. | | NA | | Not Available | 2010 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Froebelii'. From cuttings of NA 20819-H. Presumed to have been propagated in 2010 following snow damage. | 2143767 | NA 20819 |
| 160 | NA 20822 | 'Hetz Midget' | Thuja occidentalis L. | | NA | | Not Available | 2010 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Hetz Midget'. From cuttings of NA 20822-H, propagated in 2010 when the parent plant was damaged in a winter storm and removed that March. Miscellaneous note from the record of the parent accession, NA 20822: x2/17/65 NRH to Nat. Arb.: "Thuja occidentalis 'Hetz's Midget' was one of our discoveries. The parent plant was found in a batch of Thuja occidentalis seedlings growing at Fairview during the early 1930's. The most noteworthy characteristic is its extreme slow rate of growth. It makes a very dense rounded globe and fifteen year old plants seldom exceed 18" in width or height, and in most cases are much less than this." From USNA 1966 foreign distribution of this accession: "A seedling selection made at the Fairview Evergreen Nurseries, Inc., Fairview, Pennsylvania in the early 1930's. A very dense, rounded globe reaching a size of 18 inches high by 18 inches wide in 15 years. Cuttings offered from a plant received in the Gotelli Conifer Collection." [There is no clear indication that this material came to William Gotelli from Fairview Evergreen Nurseries in spite of the description of its origins there. -SBL] | 2143769 | NA 20822 |
| 161 | NA 21097 | 'Globosa Rheindiana' | Thuja occidentalis L. | | NA | | Not Available | 2010 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Globosa Rheindiana'. From cuttings of NA 21097-H. Presumed to have been propagated in 2010 following snow damage. | 2143817 | NA 21097 |
| 162 | NA 21098 | 'Umbraculifera' | Thuja occidentalis L. | | NA | | Not Available | 2010 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Umbraculifera'. From cuttings of NA 21098-H. Presumed to have been propagated in 2010 following snow damage. | 2143818 | NA 21098 |
| 163 | NA 2588 | 'Reevesii' | Thuja occidentalis L. | | NA | | Not Available | 2010 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Reevesii'. From cuttings of NA 2588-H. Likely propagated in 2010 or 2011 following snow damage to the collection or from efforts to rejuvenate some accessions with younger plants. | 2143045 | NA 2588 |
| 164 | NA 81311 | 'Steeplechase' | Thuja hybr. | | NA | | Not Available | 2009 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja 'Steeplechase'. | 2152475 | NA 81311 |
| 165 | NA 80590 | 'Green Giant' | Thuja hybr. | | NA | | Not Available | 2008 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja 'Green Giant'. | 2152169 | NA 80590 |
| 166 | NA 77148 | 'Columbia' | Thuja occidentalis L. | | NA | | Not Available | 2008 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Columbia'. | 2150947 | NA 77148 |
| 167 | NA 75265 | 'Sunshine' | Thuja plicata Donn ex D. Don | | NA | | Not Available | 2006 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja plicata 'Sunshine'. Name change due to error, Phormium is really NA75323. | 2150307 | NA 75265 |
| 168 | NA 75267 | 'Collyer's Gold' | Thuja plicata Donn ex D. Don | | NA | | Not Available | 2006 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja plicata 'Collyer's Gold'. | 2150308 | NA 75267 |
| 169 | NA 75064 | 'Steeplechase' | Thuja hybr. | | NA | | Not Available | 2005 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja 'Steeplechase'. Donated by Mr. Miles Patterson of Manor View Farm, Inc. | 2150249 | NA 75064 |
| 170 | WLP 1800 | Pellett 03-14 | Thuja occidentalis L. | Minnesota, United States | NA | | | 2004 | COLLECTED | 2003 | Tettegouche State Park, near Lake Superior. | 47.34055556, -91.18722222 | | | Wild material | | 1654185 | WLP 1800 |
| 171 | NA 73554 | 'Green Giant' | Thuja hybr. | | NA | | Not Available | 2003 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja 'Green Giant'. | 2149720 | NA 73554 |
| 172 | NA 73555 | 'Green Giant' | Thuja hybr. | | NA | | Not Available | 2003 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja 'Green Giant'. | 2149721 | NA 73555 |
| 173 | NA 70320 | 'Green Giant' | Thuja hybr. | | NA | | Not Available | 2000 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja 'Green Giant'. Originally from Spring Meadow. | 2148634 | NA 70320 |
| 174 | NA 70245 | 'Gruene Kugel' | Thuja plicata Donn ex D. Don | | NA | | Not Available | 2000 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja plicata 'Gruene Kugel'. | 2148610 | NA 70245 |
| 175 | NA 69613 | 'Hogan' | Thuja plicata Donn ex D. Don | | NA | | Not Available | 1999 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja plicata 'Hogan'. | 2148447 | NA 69613 |
| 176 | NA 68793 | NACPEC97034 | Thuja koraiensis Nakai | Jilin Sheng, China | NA | | Not Available | 1997 | COLLECTED | 10/01/1997 | Changbai County | 41.74916667, 128.04611111 | 1302 | Edge of forest atop rocky scree with Abies nephrolepis, Betula costata, Acer ukurunduense and Sorbus pohuashanensis; 50% slope; moist spaghnum mat. | Wild material | 8 m; shrubby colonies, sometimes forming small trees, spreading by layered lateral branches; DBH:10.2cm; leaves prominent white stomatal bands beneath; fruit cones yellowish to brown | 1579195 | NA 68793 |
| 177 | NA 68863 | NACPEC97104 | Thuja koraiensis Nakai | Jilin Sheng, China | | | Historic | 1997 | COLLECTED | 10/01/1997 | Changbai County | 41.73833333, 127.95722222 | 880 | Among large boulders | | 0.5 m; windblown, procumbent shrubs with lower branches layering into the moss | 1579197 | NA 68863 |
| 178 | NA 68905 | 'Green Giant' | Thuja hybr. | | NA | | Not Available | 1997 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja 'Green Giant'. | 2148246 | NA 68905 |
| 179 | NA 68910 | 'Green Giant' | Thuja hybr. | | NA | | Not Available | 1997 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja 'Green Giant'. | 2148248 | NA 68910 |
| 180 | NA 68626 | 'Grovepli' | Thuja plicata Donn ex D. Don | | NA | | Not Available | 1997 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja plicata 'Grovepli' SPRING GROVE. | 2148168 | NA 68626 |
| 181 | NA 68031 | NA 68031 | Thuja occidentalis L. | | NA | | Not Available | 1996 | | | | | | | | | 1953457 | NA 68031 |
| 182 | NA 63485 | 'Rogersii' | Thuja plicata Donn ex D. Don | | NA | | Not Available | 1992 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja plicata 'Rogersii'. | 2147129 | NA 63485 |
| 183 | NA 63026 | T5059 | Thuja occidentalis L. | | NA | | Not Available | 1990 | COLLECTED | PRE 03/15/1990 | Minnesota, Beltrami County, Blackduck | | | | Wild material | | 1895666 | NA 63026 |
| 184 | NA 61719 | 91-065-A | Thuja koraiensis Nakai | Korea, South | NA | | Not Available | 1989 | COLLECTED | 10/1989 | Taebak San, Kang-won Do. Just above end of road at You-il-sa (temple). | 37.09722222, 128.91250000 | 1300 | Growing on a moist slope in shade of Taxus cuspidata, Abies. | Wild material | | 1492167 | NA 61719 |
| 185 | NA 61720 | 91-066-A | Thuja koraiensis Nakai | Korea, South | NA | | Not Available | 1989 | COLLECTED | 10/1989 | Taebek San, Kang-won Do.Just above end of road at You-il-sa | 37.09722222, 128.91250000 | 1300 | Growing in Shade of Taxus cuspidata, Abies, Quercus, Acer | Wild material | | 1492150 | NA 61720 |
| 186 | NA 61762 | NEKG 160 | Thuja koraiensis Nakai | Korea, South | | | Historic | 1989 | COLLECTED | 11/1989 | Sorak Dong, Sorak San. Kang-won-Do. Path from Sorak Tourist Hotel to temple. | 39.15000000, 128.47083333 | 600 | Rocky ledge north facing growing with Rhododendron mucronulatum. | Wild material | | 1492142 | NA 61762 |
| 187 | NA 61763 | NEKG 161 | Thuja koraiensis Nakai | Korea, South | | | Historic | 1989 | COLLECTED | 10/1989 | Sorak Dong, Sorak San. Kang-won Do. Path from Sorak Tourist Hotel to temple. | 39.15000000, 128.47083333 | 600 | Rocky ledge north facing growing with Rhododendron mucronulatum. | Wild material | | 1492157 | NA 61763 |
| 188 | NA 61774 | NEKG 172 | Thuja koraiensis Nakai | Korea, South | | | Historic | 1989 | COLLECTED | 10/1989 | Sorak San, Kang-won Do. On trail to Tae-chong Bong, above Han-gyae-ryong. | 38.10416667, 128.41111111 | 1300 | Growing on a steep, north facing slope with Quercus mongolica. | Wild material | | 1492163 | NA 61774 |
| 189 | Ames 8090 | 72 | Thuja standishii (Gordon) Carrière | Czech Republic | | | Historic | 1988 | DEVELOPED | | | | | | Cultivated material | | 1042277 | Ames 8090 |
| 190 | NA 59533 | 'Zebrina Extra Gold' | Thuja plicata Donn ex D. Don | | NA | | Not Available | 1987 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja plicata 'Zebrina Extra Gold'. Originated at Trompenburg Arboretum in Rotterdam, Netherlands. Sport of T. plicata 'Zebrina'. | 2146585 | NA 59533 |
| 191 | TARS 17981 | Arbor Vitae | Thuja sp. | | MAY |  | | 1985 | | | | | | | | | 1677795 | TARS 17981 |
| 192 | Ames 2854 | Wardii | Thuja occidentalis L. | | | | Historic | 1984 | DONATED | 02/21/1984 | | | | | | 4 plants 1974. In field 1984. | 1022224 | Ames 2854 |
| 193 | NA 51466 | 'Pendula' | Thuja occidentalis L. | | NA | | Not Available | 1983 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Pendula'. | 2145573 | NA 51466 |
| 194 | NA 50230 | ('Zebrina' mutation) | Thuja plicata Donn ex D. Don | | NA | | Not Available | 1982 | | | | | | | Clone | Full name as recorded at U.S. National Arboretum: Thuja plicata ('Zebrina' mutation). From an intensely variegated mutant of 'Zebrina' at Longwood Gardens. | 2145497 | NA 50230 |
| 195 | NA 43381 | 'Rheingold' | Thuja occidentalis L. | | NA | | Not Available | 1979 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Rheingold'. | 2145003 | NA 43381 |
| 196 | NA 35045 | 'Lutea Nana' | Thuja occidentalis L. | | NA | | Not Available | 1972 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Lutea Nana'. This cultivar now has many different (incorrect) name variants and spelling variants of those variants; its primary synonyms at present are 'Sudworth Gold' and 'Sudworth', with some listing it as 'Pumila Sudworth', although some sources indicate (probably in error) that 'Pumila Sudworth'/'Pumila Sudworthii' is a separate, globose-shaped dwarf from 'Sudworth Gold'/'Sudworth'. This latter interpretation may have arisen from very young plants of 'Lutea Nana' that had not yet developed a typically pyramidal habit. The names probably originated in confusion following a misreading of USDA Miscellaneous Circular 92 by George B. Sudworth, "Check List of the Forest Trees of the United States: Their Names and Ranges" in which he listed Thuja occidentalis lutea humils Sudworth, citing his own earlier work. In USDA Bulletin No. 14, Nomenclature of the Arboresecent Flora of the United States, Sudworth published the following: "Thuja occidentalis lutea humilis nom. nov. Syn.--_Thuya occidentalis lutea nana_ Hort. ex Beissner, Handb. Nadelh., 41 (1891), not _Th. Sphaer. nana_ Hort. ex Gord. (1858), nor _Th. occid. recurva nana_ Hort. ex Carr. (1867)." Sudworth faild to cite Veitch's 1881 publication of Thuja occidentalis lutea nana, which is the basis for today's valid cultivar name 'Lutea Nana'. Material was apparently identified with this clone but probably was labeled 'Humilis Sudworth', dropping the word "Lutea" and adding the author citation "Sudworth" in error, and then became 'Pumila Sudworth', 'Pumila Sudworthii', and even(!) 'Pumila Sandwelli' as in our original record for NA 35045. This accession seems to match 'Lutea Nana' perfectly, and Laurence Hatch (who is credited with the name 'Sudworth Gold' by Welch [1993]) identified this accession as being identical to his 'Sudworth' ('Sudworth Gold'). -SBL 2017-12-19. This accession's card states that the material arrived grafted, but this is probably an error. | 2144494 | NA 35045 |
| 197 | NA 29971 | 'Giganteoides' | Thuja occidentalis L. | | NA | | Not Available | 1967 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Giganteoides'. | 2144156 | NA 29971 |
| 198 | NA 29972 | 'Green Giant' | Thuja hybr. | | NA | | Not Available | 1967 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja 'Green Giant'. | 2144157 | NA 29972 |
| 199 | NA 26567 | 'Semperaurea' | Thuja occidentalis L. | | NA | | Not Available | 1964 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Semperaurea'. | 2144042 | NA 26567 |
| 200 | NA 20938 | 'Milleri' | Thuja occidentalis L. | | NA | | Not Available | 1962 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Milleri'. | 2143784 | NA 20938 |
| 201 | NA 20818 | 'Endean' | Thuja occidentalis L. | | NA | | Not Available | 1962 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Endean'. | 2143766 | NA 20818 |
| 202 | NA 20821 | 'Hetz Midget' | Thuja occidentalis L. | | NA | | Not Available | 1962 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Hetz Midget'. | 2143768 | NA 20821 |
| 203 | NA 20622 | 'Beaufort' | Thuja occidentalis L. | | NA | | Not Available | 1962 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Beaufort'. | 2143741 | NA 20622 |
| 204 | NA 19966 | 'Filiformis' | Thuja occidentalis L. | | NA | | Not Available | 1962 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Filiformis'. | 2143687 | NA 19966 |
| 205 | NA 20217 | 'Pygmaea' | Thuja occidentalis L. | | NA | | Not Available | 1962 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thuja occidentalis 'Pygmaea'. Comments: A slow-growing selection with an irregular shape. Foliage very dense, short, pronouncedly thick, shiny green, frequently brownish-purple at tips. Color remaining almost identical in summer and winter. In cultivation since about 1909. (Desc. from 1965 USNA Conifer Distribution List.) | 2143710 | NA 20217 |
| 206 | NA 2929 | NA 2929 | Thuja occidentalis L. | | NA | | Not Available | 1941 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Thuja occidentalis. | 2143060 | NA 2929 |