| 0 | PI 260281 | | Haworthia cooperi Baker | Buenos Aires, Argentina | | | Historic | 1959 | DONATED | 09/01/1959 | | | | | | | 1563127 | PI 260281 |
| 1 | PI 260282 | | Haworthia turgida Haw. var. turgida | Buenos Aires, Argentina | | | Historic | 1959 | DONATED | 09/01/1959 | | | | | | | 1563128 | PI 260282 |
| 2 | PI 260283 | | Haworthia maxima (Haw.) Duval | Buenos Aires, Argentina | | | Historic | 1959 | DONATED | 09/01/1959 | | | | | | | 1563129 | PI 260283 |
| 3 | PI 260285 | | Haworthia sp. | Buenos Aires, Argentina | | | Historic | 1959 | DONATED | 09/01/1959 | | | | | | | 1563131 | PI 260285 |
| 4 | PI 133233 | | Haworthia arachnoidea (L.) Duval | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849765 | PI 133233 |
| 5 | PI 133234 | | Haworthia blackburniae W. F. Barker | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849766 | PI 133234 |
| 6 | PI 133235 | | Haworthia sp. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849767 | PI 133235 |
| 7 | PI 133236 | | Haworthia cooperi Baker | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849768 | PI 133236 |
| 8 | PI 133239 | | Haworthia sp. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849771 | PI 133239 |
| 9 | PI 133241 | | Haworthia cymbiformis (Haw.) Duval var. incurvula (Poelln.) M. B. Bayer | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849773 | PI 133241 |
| 10 | PI 133245 | | Haworthia maxima (Haw.) Duval | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849777 | PI 133245 |
| 11 | PI 133246 | | Haworthia maxima (Haw.) Duval | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849778 | PI 133246 |
| 12 | PI 133247 | | Haworthia mirabilis (Haw.) Haw. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849779 | PI 133247 |
| 13 | PI 133248 | | Haworthia mirabilis (Haw.) Haw. var. paradoxa (Poelln.) M. B. Bayer | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849780 | PI 133248 |
| 14 | PI 133249 | | Haworthia sp. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849781 | PI 133249 |
| 15 | PI 133250 | | Haworthia maraisii Poelln. var. maraisii | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849782 | PI 133250 |
| 16 | PI 133251 | | Haworthia sp. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849783 | PI 133251 |
| 17 | PI 133252 | | Haworthia mirabilis (Haw.) Haw. var. triebneriana (Poelln.) M. B. Bayer | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849784 | PI 133252 |
| 18 | PI 133253 | | Haworthia zantneriana Poelln. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849785 | PI 133253 |
| 19 | PI 132923 | | Haworthia sp. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849260 | PI 132923 |
| 20 | PI 132924 | | Haworthia mucronata Haw. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849261 | PI 132924 |
| 21 | PI 132925 | | Haworthia angustifolia Haw. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849262 | PI 132925 |
| 22 | PI 132926 | | Haworthia aristata Haw. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849263 | PI 132926 |
| 23 | PI 132927 | | Haworthia sp. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849264 | PI 132927 |
| 24 | PI 132928 | | Haworthia sp. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849265 | PI 132928 |
| 25 | PI 132930 | | Haworthia cymbiformis (Haw.) Duval | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849267 | PI 132930 |
| 26 | PI 132931 | | Haworthia decipiens Poelln. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849268 | PI 132931 |
| 27 | PI 132932 | | Haworthia cooperi Baker var. dielsiana (Poelln.) M. B. Bayer | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849269 | PI 132932 |
| 28 | PI 132933 | | Haworthia cooperi Baker var. gordoniana (Poelln.) M. B. Bayer | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849270 | PI 132933 |
| 29 | PI 132935 | | Haworthia cymbiformis (Haw.) Duval var. obtusa (Haw.) Baker | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849272 | PI 132935 |
| 30 | PI 132936 | | Haworthia reticulata (Haw.) Haw. var. hurlingii (Poelln.) M. B. Bayer | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849274 | PI 132936 |
| 31 | PI 132937 | | Haworthia reticulata (Haw.) Haw. var. reticulata | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849275 | PI 132937 |
| 32 | PI 132938 | | Haworthia mucronata Haw. var. mucronata | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849276 | PI 132938 |
| 33 | PI 132941 | | Haworthia maraisii Poelln. var. notabilis (Poelln.) M. B. Bayer | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849279 | PI 132941 |
| 34 | PI 132943 | | Haworthia herbacea (Mill.) Stearn var. paynei (Poelln.) M. B. Bayer | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849281 | PI 132943 |
| 35 | PI 132944 | | Haworthia sp. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849282 | PI 132944 |
| 36 | PI 132946 | | Haworthia emelyae Poelln. var. emelyae | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849284 | PI 132946 |
| 37 | PI 132947 | | Haworthia cooperi Baker var. pilifera (Baker) M. B. Bayer | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849285 | PI 132947 |
| 38 | PI 132948 | | Haworthia cymbiformis (Haw.) Duval var. cymbiformis | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849286 | PI 132948 |
| 39 | PI 132949 | | Haworthia cymbiformis (Haw.) Duval var. setulifera (Poelln.) M. B. Bayer | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849287 | PI 132949 |
| 40 | PI 132950 | | Haworthia cymbiformis (Haw.) Duval var. cymbiformis | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849288 | PI 132950 |
| 41 | PI 132951 | | Haworthia pygmaea Poelln. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849289 | PI 132951 |
| 42 | PI 132953 | | Haworthia reticulata (Haw.) Haw. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849291 | PI 132953 |
| 43 | PI 132954 | | Haworthia reticulata (Haw.) Haw. var. reticulata | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849292 | PI 132954 |
| 44 | PI 132955 | | Haworthia reticulata (Haw.) Haw. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849293 | PI 132955 |
| 45 | PI 132956 | | Haworthia retusa (L.) Duval | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849294 | PI 132956 |
| 46 | PI 132957 | | Haworthia mutica Haw. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849295 | PI 132957 |
| 47 | PI 132958 | | Haworthia sp. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849296 | PI 132958 |
| 48 | PI 132959 | | Haworthia sp. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849297 | PI 132959 |
| 49 | PI 132964 | | Haworthia maraisii Poelln. var. maraisii | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849302 | PI 132964 |
| 50 | PI 132965 | | Haworthia maraisii Poelln. var. maraisii | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849303 | PI 132965 |
| 51 | PI 132966 | | Haworthia maraisii Poelln. var. maraisii | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849304 | PI 132966 |
| 52 | PI 132967 | | Haworthia maxima (Haw.) Duval | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849305 | PI 132967 |
| 53 | PI 132968 | | Haworthia sp. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849306 | PI 132968 |
| 54 | PI 132969 | | Haworthia cooperi Baker var. pilifera (Baker) M. B. Bayer | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849307 | PI 132969 |
| 55 | PI 132970 | | Haworthia cooperi Baker var. pilifera (Baker) M. B. Bayer | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849308 | PI 132970 |
| 56 | PI 132979 | | Haworthia mirabilis (Haw.) Haw. var. triebneriana (Poelln.) M. B. Bayer | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849317 | PI 132979 |
| 57 | PI 132980 | | Haworthia maraisii Poelln. var. maraisii | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849318 | PI 132980 |
| 58 | PI 132981 | | Haworthia mirabilis (Haw.) Haw. var. triebneriana (Poelln.) M. B. Bayer | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849319 | PI 132981 |
| 59 | PI 132982 | | Haworthia truncata Schönland | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849320 | PI 132982 |
| 60 | PI 132985 | | Haworthia turgida Haw. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849323 | PI 132985 |
| 61 | PI 132986 | | Haworthia cymbiformis (Haw.) Duval var. obtusa (Haw.) Baker | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849324 | PI 132986 |
| 62 | PI 132987 | | Haworthia mucronata Haw. var. mucronata | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849325 | PI 132987 |
| 63 | PI 132988 | | Haworthia variegata L. Bolus | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849326 | PI 132988 |
| 64 | PI 132995 | | Haworthia maraisii Poelln. var. maraisii | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1849333 | PI 132995 |
| 65 | PI 132377 | | Haworthia sp. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848488 | PI 132377 |
| 66 | PI 132378 | | Haworthia sp. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848489 | PI 132378 |
| 67 | PI 132379 | | Haworthia bolusii Baker var. blackbeardiana (Poelln.) M. B. Bayer | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848490 | PI 132379 |
| 68 | PI 132380 | | Haworthia mucronata Haw. var. morrisiae (Poelln.) Poelln. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848491 | PI 132380 |
| 69 | PI 132381 | | Haworthia angustifolia Haw. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848492 | PI 132381 |
| 70 | PI 132382 | | Haworthia angustifolia Haw. var. angustifolia | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848493 | PI 132382 |
| 71 | PI 132383 | | Haworthia chlorocantha Haw. var. denticulifera (Poelln.) M. B. Bayer | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848494 | PI 132383 |
| 72 | PI 132384 | | Haworthia glauca Baker var. herrei (Poelln.) M. B. Bayer | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848495 | PI 132384 |
| 73 | PI 132386 | | Haworthia sp. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848497 | PI 132386 |
| 74 | PI 132389 | | Haworthia sp. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848500 | PI 132389 |
| 75 | PI 132392 | | Haworthia sp. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848503 | PI 132392 |
| 76 | PI 132393 | | Haworthia bolusii Baker var. blackbeardiana (Poelln.) M. B. Bayer | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848504 | PI 132393 |
| 77 | PI 132394 | 'Major' | Haworthia bolusii Baker var. blackbeardiana (Poelln.) M. B. Bayer | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848505 | PI 132394 |
| 78 | PI 132395 | | Haworthia bolusii Baker | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848506 | PI 132395 |
| 79 | PI 132396 | | Haworthia arachnoidea (L.) Duval var. aranea (A. Berger) M. B. Bayer | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848507 | PI 132396 |
| 80 | PI 132397 | | Haworthia turgida Haw. var. turgida | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848508 | PI 132397 |
| 81 | PI 132399 | | Haworthia chlorocantha Haw. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848510 | PI 132399 |
| 82 | PI 132400 | | Haworthia sp. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848511 | PI 132400 |
| 83 | PI 132401 | | Haworthia sp. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848512 | PI 132401 |
| 84 | PI 132402 | | Haworthia cymbiformis (Haw.) Duval var. obtusa (Haw.) Baker | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848513 | PI 132402 |
| 85 | PI 132403 | | Haworthia aristata Haw. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848514 | PI 132403 |
| 86 | PI 132404 | | Haworthia glauca Baker var. herrei (Poelln.) M. B. Bayer | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848515 | PI 132404 |
| 87 | PI 132413 | | Haworthia arachnoidea (L.) Duval var. setata (Haw.) M. B. Bayer | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848524 | PI 132413 |
| 88 | PI 132415 | | Haworthia gracilis Poelln. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848526 | PI 132415 |
| 89 | PI 132416 | | Haworthia reticulata (Haw.) Haw. var. subregularis (Baker) Pilbeam | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848527 | PI 132416 |
| 90 | PI 132417 | | Haworthia reticulata (Haw.) Haw. var. subregularis (Baker) Pilbeam | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848528 | PI 132417 |
| 91 | PI 132418 | | Haworthia mucronata Haw. var. mucronata | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848529 | PI 132418 |
| 92 | PI 132419 | | Haworthia glauca Baker var. herrei (Poelln.) M. B. Bayer | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848530 | PI 132419 |
| 93 | PI 132420 | | Haworthia glauca Baker var. herrei (Poelln.) M. B. Bayer | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848531 | PI 132420 |
| 94 | PI 132421 | | Haworthia glauca Baker var. herrei (Poelln.) M. B. Bayer | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848532 | PI 132421 |
| 95 | PI 132422 | | Haworthia turgida Haw. var. turgida | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848535 | PI 132422 |
| 96 | PI 132426 | | Haworthia arachnoidea (L.) Duval var. xiphiophylla (Baker) Halda | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848539 | PI 132426 |
| 97 | PI 132427 | | Haworthia maraisii Poelln. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848540 | PI 132427 |
| 98 | PI 132428 | | Haworthia truncata Schönland var. maughanii (Poelln.) B. Fearn | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848541 | PI 132428 |
| 99 | PI 132433 | | Haworthia reinwardtii (Salm-Dyck) Haw. var. reinwardtii | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848546 | PI 132433 |
| 100 | PI 132437 | | Haworthia reinwardtii (Salm-Dyck) Haw. var. reinwardtii | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848550 | PI 132437 |
| 101 | PI 132439 | | Haworthia reinwardtii (Salm-Dyck) Haw. var. reinwardtii | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848552 | PI 132439 |
| 102 | PI 132440 | | Haworthia arachnoidea (L.) Duval var. setata (Haw.) M. B. Bayer | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848553 | PI 132440 |
| 103 | PI 132441 | | Haworthia arachnoidea (L.) Duval var. setata (Haw.) M. B. Bayer | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848554 | PI 132441 |
| 104 | PI 132442 | | Haworthia arachnoidea (L.) Duval var. setata (Haw.) M. B. Bayer | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848555 | PI 132442 |
| 105 | PI 132443 | | Haworthia aristata Haw. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848556 | PI 132443 |
| 106 | PI 132444 | | Haworthia sp. | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848557 | PI 132444 |
| 107 | PI 132445 | | Haworthia truncata Schönland | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848558 | PI 132445 |
| 108 | PI 132446 | | Haworthia truncata Schönland | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848559 | PI 132446 |
| 109 | PI 132447 | | Haworthia arachnoidea (L.) Duval var. xiphiophylla (Baker) Halda | Namibia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848560 | PI 132447 |
| 110 | PI 81169 | No. 822 | Haworthia sp. | Liguria, Italy | | | Historic | 1929 | COLLECTED | | | | | | | | 1744916 | PI 81169 |
| 111 | PI 78211 | | Haworthia cymbiformis (Haw.) Duval | Cape Province, South Africa | | | Historic | 1928 | COLLECTED | | | | | | | | 1733817 | PI 78211 |
| 112 | NA 81288 | NA 81288 | Haworthia retusa (L.) Duval | | NA | | Not Available | 2008 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Haworthia retusa. | 2152460 | NA 81288 |