| 0 | PI 691829 | ARM 474 | Thymus sp. | Armenia | W6 | | | 2002 | COLLECTED | 08/20/2001 | Area known as Archanots (Bear place). Mountainside on south side of Lake Sevan. | 40.57777778, 44.98972222 | 2006 | Reading is at base of slope, but we collected all the way to the top which was at 2300 masl. | Wild material | | 1638746 | PI 691829 |
| 1 | PI 642148 | B96-248 | Thymus sp. | Bulgaria | W6 | | | 1996 | COLLECTED | 07/1996 | Oak woodland. Many grass species. | 41.77805556, 25.33972222 | 479 | | Wild material | | 1540911 | PI 642148 |
| 2 | PI 593724 | H 6802 | Thymus kotschyanus Boiss. & Hohen. var. kotschyanus | Turkey | W6 | | | 1986 | COLLECTED | 07/24/1985 | Van Province. 2 km north of Ag Station (north of Kockopru). | 39.18333333, 43.35000000 | 1850 | Collected on an ungrazed slope. | Wild material | Common low subshrub, woody at base. Flowers white. Leaves fragrant. | 1040022 | PI 593724 |
| 3 | PI 479612 | NA 51060 | Thymus quinquecostatus Čelak. | Japan | | | Historic | 1982 | COLLECTED | 09/15/1982 | Serpentine Garden, Hokkaido Univ., Teshio Forest, Toikanbetsu, Hokkaido | 44.88333333, 141.91666667 | | | Cultivated material | Snow 1-2m per annum. Minimum temperature -17C. From wild source. Cuttings from single plant. | 1374548 | PI 479612 |
| 4 | PI 434461 | BN-11048 | Thymus thracicus Velen. | Mississippi, United States | | | Historic | 1979 | DONATED | 03/1979 | | | | | | | 1329397 | PI 434461 |
| 5 | PI 440665 | P-140 | Thymus kosteleckyanus Opiz | Russian Federation | | | Historic | 1978 | COLLECTED | 07/29/1977 | Ridge on Victory Collective Farm, 186km southeast of Stavrop ol | | 270 | | | Plants to 6cm. Spreads vegetatively, used as ground cover. | 1335601 | PI 440665 |
| 6 | PI 440666 | P-179 | Thymus kosteleckyanus Opiz | Russian Federation | | | Historic | 1978 | COLLECTED | 08/01/1977 | Lenin Farm, 90km southeast of Stavropol | | | | | Plants to 8cm. Ground cover on exposed knoll. | 1335602 | PI 440666 |
| 7 | PI 440667 | P-183 | Thymus kosteleckyanus Opiz | Russian Federation | | | Historic | 1978 | COLLECTED | 08/01/1977 | Southeast 120km of Stavropol near Gofitskoye Village | | | | | Plants to 8cm. | 1335603 | PI 440667 |
| 8 | PI 381041 | 286 | Thymus sp. | Iran | W6 | | Not Available | 1972 | COLLECTED | | Seritchal | | | | Wild material | Perennial plant 6 to 8cm tall and to 50cm in diameter. White to lavender color, odoriferous. Used as ground cover. Common Most abundant plant on extensive areas. 10 | 1285740 | PI 381041 |
| 9 | PI 381043 | 320 | Thymus sp. | Iran | W6 | | | 1972 | COLLECTED | | Hajiabad, northeast of Tehran. Highway Department land. On former cropland. | | | | Wild material | Perennial, single, large plant. Isolated from others. 10 | 1285741 | PI 381043 |
| 10 | PI 123129 | No. 2308 | Thymus sp. | Turkey | | | Historic | 1937 | COLLECTED | 08/10/1936 | 53km north of Gemushane | | | | | | 1834751 | PI 123129 |
| 11 | PI 123130 | No. 2099 | Thymus sp. | Ankara, Turkey | | | Historic | 1937 | COLLECTED | 08/01/1936 | Alma Dag, 25km southeast of Ankara | | | | | | 1834752 | PI 123130 |
| 12 | PI 123131 | No. 3447 | Thymus serpyllum L. | Ankara, Turkey | | | Historic | 1937 | COLLECTED | 06/28/1936 | Alma Dag | | | | | | 1834753 | PI 123131 |
| 13 | PI 106532 | | Thymus longicaulis C. Presl | Bulgaria | | | Historic | 1934 | COLLECTED | 08/13/1934 | Rila Monastery | | 1264 | | | | 1795727 | PI 106532 |
| 14 | PI 106533 | No. 12 | Thymus sp. | Sofia, Bulgaria | | | Historic | 1934 | COLLECTED | 08/09/1934 | | | 602 | | | | 1795728 | PI 106533 |
| 15 | PI 105164 | | Thymus praecox Opiz subsp. britannicus (Ronniger) Holub | Sweden | | | Historic | 1934 | COLLECTED | | | | | | | | 1793726 | PI 105164 |
| 16 | PI 105165 | | Thymus thracicus Velen. | Sweden | | | Historic | 1934 | COLLECTED | | | | | | | | 1793727 | PI 105165 |
| 17 | PI 105166 | | Thymus serpyllum L. | Sweden | | | Historic | 1934 | COLLECTED | | | | | | | | 1793728 | PI 105166 |
| 18 | PI 105167 | | Thymus serpyllum L. subsp. serpyllum | Sweden | | | Historic | 1934 | COLLECTED | | | | | | | | 1793729 | PI 105167 |
| 19 | PI 103399 | | Thymus serpyllum L. | Unknown | | | Historic | 1933 | COLLECTED | | Union of Soviet Socialist Republics | | | | | | 1791747 | PI 103399 |
| 20 | PI 68153 | 'Frigola' | Thymus zygis L. | Illes Balears, Spain | | | Historic | 1926 | COLLECTED | 08/14/1926 | | | | | | | 1720930 | PI 68153 |
| 21 | PI 43470 | Cooper No. 5265 | Thymus sp. | Unknown | | | Historic | 1916 | COLLECTED | | | | | | | | 1608190 | PI 43470 |
| 22 | PI 12417 | | Thymus vulgaris L. | Île-de-France, France | | | Historic | 1904 | COLLECTED | | | | | | | | 1556415 | PI 12417 |
| 23 | PI 12437 | | Thymus vulgaris L. | Thüringen, Germany | | | Historic | 1904 | COLLECTED | | | | | | | | 1556502 | PI 12437 |
| 24 | PI 8526 | | Thymus vulgaris L. | Île-de-France, France | | | Historic | 1902 | COLLECTED | | | | | | | | 1547696 | PI 8526 |
| 25 | PI 8527 | | Thymus serpyllum L. | Île-de-France, France | | | Historic | 1902 | COLLECTED | | | | | | | | 1547697 | PI 8527 |
| 26 | NA 87765 | 'Silver Queen' | Thymus sp. | | NA | | Not Available | 2024 | | | | | | | Cultivar | Full name as recorded at the U.S. National Arboretum: Thymus 'Silver Queen'. Received as Thymus x citriodorus 'Argenteus'. | 2168744 | NA 87765 |
| 27 | NA 87766 | 'American Silver' | Thymus sp. | | NA | | Not Available | 2024 | | | | | | | Cultivar | Full name as recorded at the U.S. National Arboretum: Thymus 'American Silver'. Received as Thymus vulgaris 'Argenteus'. | 2168745 | NA 87766 |
| 28 | NA 76093 | 'Lanuginosus' | Thymus praecox Opiz subsp. britannicus (Ronniger) Holub | | NA | | Not Available | 2023 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thymus praecox subsp. britannicus 'Lanuginosus'. Form received: unknown propagule type. | 2150585 | NA 76093 |
| 29 | NA 87394 | 'TM122' | Thymus sp. | | NA | | Not Available | 2023 | | | | | | | Cultivar | Full name at U.S. National Arboretum: Thymus 'TM122' ROSE PETAL. Received as Thymus (rose scented). | 2158325 | NA 87394 |
| 30 | NA 87395 | 'Fragrantissimus' | Thymus vulgaris L. | | NA | | Not Available | 2023 | | | | | | | Cultivar | Received as Thymus fragrantissimus (orange thyme). | 2158326 | NA 87395 |
| 31 | NA 87396 | NA 87396 | Thymus sp. | | NA | | Not Available | 2023 | | | | | | | Cultivated material | Full name at U.S. National Arboretum: Thymus x faustinoi. Received as Thymus vulgaris 'Faustino'. | 2158327 | NA 87396 |
| 32 | NA 80942 | NA 80942 | Thymus serpyllum L. | | NA | | Not Available | 2012 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Thymus serpyllum. | 2152312 | NA 80942 |
| 33 | W6 33906 | GR05-008 | Thymus longicaulis C. Presl | Pelopónnisos, Greece | W6 | | Not Available | 2009 | COLLECTED | 08/23/2005 | From Sparta south to Anoghia and then to Paleppanaghia. Drove to the end of the pavement to Maganiari then on dirt road to South Hiking Refuge. Hiked the trail to Mt Taygetos. | 36.95527778, 22.36222222 | 1732 | Upper slope of high ridge. East facing, 20o slope, full sun. | Wild material | Plants irregularly distributed, abundant over whole area. Low growing plants. Typical Thyme fragrance. | 1793388 | W6 33906 |
| 34 | W6 33925 | GR05-030 | Thymus longicaulis C. Presl | Central Greece, Greece | W6 | | Not Available | 2009 | COLLECTED | 08/27/2005 | circuitous route to Mt. Giona. Reference Anavasi Giona, Oeta, Vardousia:Topo 50, #2.3 At end of dirt road hiked by unused road and trail to higher elevations. | 38.65944444, 22.28527778 | 1673 | North facing, 0-10o slope, full sun. | Wild material | Typical Thyme fragance. | 1793401 | W6 33925 |
| 35 | W6 33926 | GR05-031 | Thymus sp. | Central Greece, Greece | W6 | | Not Available | 2009 | COLLECTED | 08/27/2005 | circuitous route to Mt. Giona. Reference Anavasi Giona, Oeta, Vardousia:Topo 50, #2.3 At end of dirt road hiked by unused road and trail to higher elevations. | 38.65944444, 22.28527778 | 1673 | North facing, 0-10o slope, full sun. | Wild material | Sweet fragrance. | 1793402 | W6 33926 |
| 36 | NA 78515 | NA 78515 | Thymus pulegioides L. | Azerbaijan | NA | | Not Available | 2008 | COLLECTED | 09/22/2008 | Perzivan Station, dry bottom slope of foothill near intersection of dirt road leading to station and paved road. | | | dry foothills scrub | | | 1950712 | NA 78515 |
| 37 | NA 78550 | NA 78550 | Thymus tiflisiensis Klokov & Des.-Shost. | | NA | | Not Available | 2008 | | | | | | | Wild material | Full name as recorded at U.S. National Arboretum: Thymus tiflisiensis. Both the original dried herbal material that was purchased at the market and the resulting seedling exhibit a lemon fragrance. | 2151397 | NA 78550 |
| 38 | W6 32798 | BH2007 08003 | Thymus sp. | Georgia | W6 | | | 2007 | COLLECTED | 08/28/2007 | Roadside. Dirt road between Orbete and Nichbisi, toward Mt. Oidgori. Kartli Province. | 41.73555556, 44.41138889 | 1767 | Secondary subalpine meadow; east facing slope. | Wild material | collected from population of 100+ plants. | 1740585 | W6 32798 |
| 39 | W6 32821 | BH2007 09054 | Thymus praecox Opiz subsp. caucasicus (Willd. ex Ronniger) Jalas | Georgia | W6 | | Not Available | 2007 | COLLECTED | 09/02/2007 | Gergeti Village, dirt road above village to Church Gergeti toward Mt. Kazbegi. Mtkheta Province. | 42.66750000, 44.61305556 | 2110 | Fenced alpine meadow used for hay. 1-5% slope, northeast facing. | Wild material | collected from population of 500 plants. | 1740631 | W6 32821 |
| 40 | W6 28002 | TJK2006:213 | Thymus sp. | Tajikistan | W6 | | Not Available | 2006 | COLLECTED | 06/29/2006 | 25 km after Shakhriston city. Province: Sughd, Region: Shakhriston | 39.60694444, 68.63833333 | 2277 | 7% east slope | Wild material | | 1706382 | W6 28002 |
| 41 | NA 74742 | NA 74742 | Thymus sp. | | NA | | Not Available | 2005 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thymus 'TM122' ROSE PETAL. | 2150115 | NA 74742 |
| 42 | NA 74605 | NA 74605 | Thymus quinquecostatus Čelak. | | NA | | Not Available | 2005 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Thymus quinquecostatus. | 2150083 | NA 74605 |
| 43 | CTHY 1 | GE-2004-066 | Thymus nummularius M. Bieb. | Georgia | | | Historic | 2004 | COLLECTED | 09/29/2004 | Mtiuleti (Mtskheta-Mtianeti) province, near Gergeti Holy Trinity Church. | 42.66500000, 44.61055556 | 2270 | Sub-alpine meadow growing in sun along trail with Vaccinium myrtillus, V. vitis-idaea and Daphne glomerata. | Wild material | | 1668561 | CTHY 1 |
| 44 | W6 26149 | G2302 | Thymus transcaucasicus Ronniger | Georgia | W6 | | Not Available | 2004 | COLLECTED | 07/08/2004 | Near village of Nichbisi | 41.64055556, 44.69222222 | | Same as G2301 | Wild material | Small plants very prostrate less than 10cm tall | 1661147 | W6 26149 |
| 45 | NA 73595 | 'Lime' | Thymus sp. | | NA | | Not Available | 2004 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thymus 'Lime'. | 2149737 | NA 73595 |
| 46 | W6 23858 | ARM 103 | Thymus kotschyanus Boiss. & Hohen. | Armenia | W6 | | Not Available | 2002 | COLLECTED | 08/10/2001 | Koshabulakh region. | 40.37694444, 44.26361111 | 2025 | Viburnum sp. bush, but also found wild Thymus, Trifolium, Dianthus, Campanula. | Wild material | | 1638718 | W6 23858 |
| 47 | W6 23966 | ARM 284 | Thymus thracicus Velen. | Armenia | W6 | | Not Available | 2002 | COLLECTED | 08/14/2001 | | 39.65166667, 45.29777778 | 2002 | Last site of the day. This was a pasture site near a spring with drinkable water, that looked heavily disturbed, but above the pastured area it was very dry and moderately steep and we found some new species of clover and some th | Wild material | | 1638629 | W6 23966 |
| 48 | W6 23984 | ARM 314 | Thymus kotschyanus Boiss. & Hohen. | Armenia | W6 | | | 2002 | COLLECTED | 08/15/2001 | On the rim, and inside of an old volcano. | 39.79527778, 45.48027778 | 2557 | Very dry, steep rocky area. Observed Cicer anatolicum growing in basaltic rocky area, but the pods were all dehisced. | Wild material | | 1638513 | W6 23984 |
| 49 | W6 24087 | ARM 469 | Thymus kotschyanus Boiss. & Hohen. | Armenia | W6 | | Not Available | 2002 | COLLECTED | 08/20/2001 | Steep canyon off of road to Dilijan Reserve. | 40.66833333, 44.88611111 | 2047 | | Wild material | | 1638745 | W6 24087 |
| 50 | W6 24107 | ARM 495 | Thymus kotschyanus Boiss. & Hohen. | Armenia | W6 | | Not Available | 2002 | COLLECTED | 08/21/2001 | About 45 km east from site 43. | 40.45416667, 45.42250000 | 1939 | Very dry, heavily grazed, rocky area. Found wild beet and thyme | Wild material | | 1638659 | W6 24107 |
| 51 | W6 24127 | ARM 534 | Thymus kotschyanus Boiss. & Hohen. | Armenia | W6 | | Not Available | 2002 | COLLECTED | 08/22/2001 | | 40.57166667, 44.96333333 | 2240 | Site where we were specifically looking for Vicia tetrasperma. Very dry, heavily grazed area, except at the base of small cliff. | Wild material | | 1638589 | W6 24127 |
| 52 | W6 23167 | KAZ-121 | Thymus serpyllum L. | Kazakhstan | W6 |  | Not Available | 2000 | COLLECTED | 08/2000 | | 49.23694444, 58.58277778 | 330 | | Wild material | | 1609011 | W6 23167 |
| 53 | W6 23194 | KAZ-205 | Thymus sp. | Kazakhstan | W6 |  | | 2000 | COLLECTED | 08/2000 | | 48.84333333, 59.03055556 | 337 | Found along dryer area of an intermitant stream growing with Medicago falcata. | Wild material | | 1609038 | W6 23194 |
| 54 | W6 23198 | KAZ-217 | Thymus serpyllum L. | Kazakhstan | |  | Historic | 2000 | COLLECTED | 08/2000 | | 48.83694444, 58.89194444 | 372 | | Wild material | | 1609042 | W6 23198 |
| 55 | W6 23209 | KAZ-283 | Thymus serpyllum L. | Kazakhstan | W6 |  | | 2000 | COLLECTED | 08/2000 | | 48.67944444, 57.07333333 | 211 | | Wild material | | 1609053 | W6 23209 |
| 56 | W6 23212 | KAZ-306 | Thymus serpyllum L. | Kazakhstan | W6 |  | | 2000 | COLLECTED | 08/2000 | | 49.17500000, 56.87555556 | 281 | | Wild material | | 1609056 | W6 23212 |
| 57 | W6 23231 | KAZ-383 | Thymus serpyllum L. | Kazakhstan | W6 | | | 2000 | COLLECTED | 08/2000 | | 50.29888889, 55.83000000 | 191 | | Wild material | | 1609075 | W6 23231 |
| 58 | W6 21274 | 98HT-187 | Thymus mongolicus (Ronniger) Ronniger | Mongolia | | | Historic | 1999 | COLLECTED | 09/1998 | Batchirrit Sum, Henti Aimag | 48.59722222, 110.25833333 | 1219 | Small hill in a large valley surrounded by grass steppe. Soils are thin and gravelly on top of the hill and on southern aspects. On northern aspects soils are deeper, black chernozem | Wild material | Associated vegetation:Typical grass-steppe species including Festuca with many small forbs and cryptogams present. | 1578124 | W6 21274 |
| 59 | W6 19306 | B96-104 | Thymus sp. | Bulgaria | W6 | | | 1996 | COLLECTED | 07/1996 | Rocky hillside with gentle slope. Alkalai soils (pH 9.5) | 42.12500000, 24.43138889 | 274 | south-southwes | Wild material | | 1540808 | W6 19306 |
| 60 | W6 19377 | B96-195 | Thymus sp. | Bulgaria | W6 | | | 1996 | COLLECTED | 07/1996 | Rocky area on side of road near village of village, Gela. | 41.66638889, 24.41027778 | 882 | north | Wild material | | 1540909 | W6 19377 |
| 61 | W6 19403 | B96-232 | Thymus sp. | Bulgaria | W6 | | Not Available | 1996 | COLLECTED | 07/1996 | 15km southeast of Smolyan, along Cherna River.Near village of Ravnishte. | 41.56944444, 24.86333333 | 714 | south | Wild material | | 1541074 | W6 19403 |
| 62 | W6 19407 | B96-237 | Thymus sp. | Bulgaria | W6 | | | 1996 | COLLECTED | 07/1996 | 7-8km east of town, Ardino. Pine woods. Collections from under the pine canopy. Much bracken fern. | 41.58083333, 25.15583333 | 866 | west | Wild material | | 1540882 | W6 19407 |
| 63 | W6 19479 | B96-338 | Thymus sp. | Bulgaria | W6 | | | 1996 | COLLECTED | 07/1996 | 10km south of Pravec. Stream runs north-south. Many species on edged of oak woodland. | 42.88805556, 23.96083333 | 395 | | Wild material | | 1540857 | W6 19479 |
| 64 | W6 19493 | B96-354 | Thymus sp. | Bulgaria | W6 | | Not Available | 1996 | COLLECTED | 07/1996 | Oak woodland, much Thymus, grasses, thistle, wild plum, very dry sandy/gravel soil. | 42.54694444, 24.21972222 | 699 | Open | Wild material | | 1540864 | W6 19493 |
| 65 | W6 6164 | NU 19121 | Thymus vulgaris L. | Washington, United States | W6 | | Not Available | 1990 | DONATED | 11/05/1990 | | | | | Uncertain improvement status | | 1035430 | W6 6164 |
| 66 | NA 61211 | 'Roseus' | Thymus praecox Opiz subsp. britannicus (Ronniger) Holub | | NA | | Not Available | 1989 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Thymus praecox subsp. britannicus 'Roseus'. | 2146783 | NA 61211 |
| 67 | Ames 14360 | NU 19121 | Thymus vulgaris L. | | | | Historic | 1939 | | | | | | | | | 1067145 | Ames 14360 |