| Stable identifier | Scientific Name | Media |
| http://herbarium.bgbm.org/object/B100296781 | Agrostis aristiglumis Swallen |
|
| https://herbarium.bgbm.org/object/B180012580 | Pinus coulteri D.Don |
|
| https://herbarium.bgbm.org/object/B180013186 | Pinus quadrifolia Parl. |
|
| https://herbarium.bgbm.org/object/B180013200 | Pinus radiata D.Don |
|
| https://herbarium.bgbm.org/object/B100356971 | Campanula angustiflora Eastw. |
|
| http://herbarium.bgbm.org/object/B100365633 | Drymaria monticola J. T. Howell |
|
| https://herbarium.bgbm.org/object/B100365654 | Arenaria rosei Maguire & Barneby |
|
| https://herbarium.bgbm.org/object/B100250383 | Portulaca lutea var. howellii D.Legrand |
|
| https://herbarium.bgbm.org/object/B100241186 | Athysanus pusillus Greene |
|
| https://herbarium.bgbm.org/object/B100295539 | Aquilegia pubescens Coville |
|
| Stable identifier | Scientific Name | Media |
| https://brnu.jacq.org/BRNU190780 | Draba nemorosa var. leiocarpa Lindblom |
|
| Stable identifier | Scientific Name | Media |
| https://dr.jacq.org/DR050713 | Aspidotis densa (Brack.) Lellinger |
|
| https://dr.jacq.org/DR051002 | Pentagramma triangularis subsp. triangularis (Kaulf.) Yatsk., Windham & E. Wollenw. |
|
| https://dr.jacq.org/DR056149 | Anthoxanthum occidentale (Buckley) Veldkamp |
|
| https://dr.jacq.org/DR058929 | Vahlodea atropurpurea (Wahlenb.) Fr. ex Hartm. |
|
| https://dr.jacq.org/DR051055 | Cryptogramma crispa var. acrostichoides (R. Br.) C. B. Clarke |
|
| https://dr.jacq.org/DR054087 | Dryopteris villarii (Bellardi) Woyn. ex Schinz & Thell. |
|
| https://dr.jacq.org/DR054715 | Asarum hartwegii S. Watson |
|
| https://dr.jacq.org/DR051075 | Myriopteris gracillima (D.C. Eaton) J. Sm. |
|
| Stable identifier | Scientific Name | Media |
| https://je.jacq.org/JE00002524 | Cardamine oligosperma Nutt. |
|
| https://je.jacq.org/JE00010638 | Astragalus diaphanus Douglas ex Hook. |
|
| https://je.jacq.org/JE00017481 | Crepis runcinata subsp. hispidulosa (Howell ex Rydb.) Babc. & Stebbins |
|
| https://je.jacq.org/JE00020539 | Viola trinervata (Howell) A. Gray |
|
| Stable identifier | Scientific Name | Media |
| https://w.jacq.org/W19840012791 | Agrostis microphylla Steud. |
|
| https://w.jacq.org/W0106149 | Rumex crassus Rech. f. |
|
| https://w.jacq.org/W19960007755 | Rumex fenestratus Greene |
|
| https://w.jacq.org/W20190003797 | Phalaris lemmonii Vasey |
|
| https://w.jacq.org/W19160015269 | Elymus reflexiaristatus (Nevski) Melderis |
|
| https://w.jacq.org/W19960007734 | Rumex conglomeratus Murray |
|
| https://w.jacq.org/W19950003494 | Calandrinia menziesii (Hook.) Torr. & A. Gray |
|
| https://w.jacq.org/W19950003463 | Calandrinia menziesii (Hook.) Torr. & A. Gray |
|
| https://w.jacq.org/W0106151 | Rumex crassus Rech. f. |
|
| https://w.jacq.org/W19600022062 | Achnatherum lettermanii (Vasey) Barkworth |
|
Media items stored by Museum Digital

Publications by John Thomas Howell