Aceraceae GH: 01791125 Acer grandidentatum Nuttall ex Torrey & A. Gray USA: Arizona Santa Catalina Mtns R. A. Darrow 1937-10-3
Asteraceae GH: 02142099 Calycoseris wrightii A. Gray USA: Arizona Flat Top Mt.- Papago Indian Res. R. A. Darrow 1937
GH: 02206788 Erigeron divergens Torrey & A. Gray USA: Arizona Box Cany. Santa Rita Mtns R. A. Darrow 1937-3-28
GH: 01835583 Malacothrix fendleri A. Gray USA: Arizona Ronstadt, Baboquivari Mtns. R. A. Darrow 1937-4-4
GH: 01835624 Malacothrix glabrata (A. Gray ex D. C. Eaton) A. Gray USA: Arizona Ronstadt, Baboquivari Mts. R. A. Darrow 1937-4-4
GH: 01835767 Malacothrix sonchoides (Nuttall) Torrey & A. Gray USA: Arizona Sahuarita R. A. Darrow 1937-5-9
Berberidaceae GH: 02169269 Mahonia haematocarpa (Wooton) Fedde USA: Arizona Globe R. A. Darrow 1937-3-14
Boraginaceae GH: 01956733 Amsinckia menziesii A. Nelson & J. F. Macbride USA: Arizona Florence R. A. Darrow 1937-3-14
GH: 01957119 Amsinckia tessellata A. Gray USA: Arizona Florence R. A. Darrow 1937-3-14
GH: 02023064 Cryptantha barbigera (A. Gray) Greene USA: Arizona Apache Lake, eastern Maricopa Co R. A. Darrow 1937-3-14
GH: 02023066 Cryptantha barbigera (A. Gray) Greene USA: Arizona Flat Top Mt. Papago Indian Reservation, west... R. A. Darrow 1937-3-7
GH: 01993021 Harpagonella palmeri arizonica I. M. Johnston USA: Arizona Flat Top Mountain, Papago Indian Reservation... R. A. Darrow 1937-3-7
GH: 01994937 Lappula redowskii (Hornemann) Greene USA: Arizona Tucson: [no additional data] R. A. Darrow 1937-3-28
GH: 02061725 Pectocarya platycarpa (Munz & I. M. Johnston) Munz & I. M. Johnston USA: Arizona Florence R. A. Darrow 1937-3-14
GH: 02062059 Plagiobothrys arizonicus (A. Gray) Greene USA: Arizona Silverbell Road, Tucson Mountains R. A. Darrow 1937-3-21
Brassicaceae GH: 01084010 Descurainia pinnata halictorum (Cockerell) Detling USA: Arizona Tucson: [no additional data] R. A. Darrow 1937-3-28
GH: 01084352 Descurainia pinnata ochroleuca (Wooton) Detling USA: Arizona Tucson: [no additional data] R. A. Darrow 1937-3-28
GH: 01561517 Dryopetalon runcinatum A. Gray USA: Arizona Tucson Mts. R. A. Darrow 1937-3-20
GH: 01549882 Lepidium virginicum medium (Greene) C. L. Hitchcock USA: Arizona Apache Junct. R. A. Darrow 1937-3-14
GH: 01550622 Noccaea fendleri glauca (A. Nelson) Al-Shehbz & M. Koch USA: Arizona San Francisco Mtns. R. A. Darrow 61 1937-8-20
GH: 01575876 Physaria gordonii (A. Gray) O'Kane & Al-Shehbaz USA: Arizona Flat Top Mt. Papago Indian Reservation R. A. Darrow 1937-3-7
GH: 01691097 Physaria purpurea (A. Gray) O'Kane & Al-Shehbaz USA: Arizona Apache Junction R. A. Darrow 1937-3-14
GH: 01731535 Thysanocarpus curvipes Hooker USA: Arizona Tucson Mts. R. A. Darrow 1937-3-20
Caesalpiniaceae GH: 01852751 Chamaecrista serpens wrightii (A. Gray) H. S. Irwin & Barneby USA: Arizona Atasca Mtns; Calabasas R. A. Darrow 1937-7-11
Capparaceae GH: 01872532 Polanisia dodecandra trachysperma (Torrey & A. Gray) Iltis USA: Arizona Graham Mts. R. A. Darrow 1937-7-4
Celastraceae GH: 01855214 Mortonia sempervirens A. Gray USA: Arizona Turney's Ranch, Whetstone Mts. R. A. Darrow 1937-6-13
Cucurbitaceae GH: 01544354 Marah gilensis (Greene) Greene USA: Arizona Fish Creek Canyon R. A. Darrow 1937-3-14
Ephedraceae GH: 00933501 Ephedra nevadensis S. Watson USA: Arizona Apache Junction R. A. Darrow 1937-3-14
Ericaceae GH: 01117271 Arbutus arizonica (A. Gray) Sargent USA: Arizona Santa Catalina Mtns. R. A. Darrow 1937-10-3
Fabaceae GH: 01963857 Acmispon oroboides (Kunth) Brouillet USA: Arizona Oracle R. A. Darrow 1937-4-25
GH: 01963948 Acmispon rigidus (Bentham) Brouillet USA: Arizona Canyon Lake R. A. Darrow 1937-3-14
GH: 01963949 Acmispon rigidus (Bentham) Brouillet USA: Arizona Canyon Lake R. A. Darrow 1937-3-14
GH: 01963956 Acmispon rigidus (Bentham) Brouillet USA: Arizona Canyon Lake, Apache Trail R. A. Darrow 1937-3-14
GH: 01967139 Acmispon subpinnatus (Lagasca) D. D. Sokoloff USA: Arizona Topawah, near Sells R. A. Darrow 1937-4-4
GH: 02049525 Astragalus nothoxys A. Gray USA: Arizona Box Canyon Santa Rita Mtns. R. A. Darrow 1937-3-28
GH: 02049527 Astragalus nothoxys A. Gray USA: Arizona Box Canyon, Santa Rita Mtns R. A. Darrow 1937-3-28
GH: 02030431 Astragalus wootonii E. Sheldon USA: Arizona Roustadt, Baboquivari Mtns R. A. Darrow 1937-4-4
GH: 01885502 Dalea formosa Torrey USA: Arizona Vail R. A. Darrow 1937-3-28
GH: 02085976 Lupinus concinnus J. Agardh USA: Arizona Ronstadt, Baboquivari Mtns R. A. Darrow 1937-4-4
GH: 02177639 Lupinus palmeri S. Watson USA: Arizona Santa Catalina Mts. R. A. Darrow 1937-4-25
GH: 01539673 Lupinus sparsiflorus mohavensis Dziek. & D. B. Dunn USA: Arizona Apache [et.?] R. A. Darrow 1937-3-14
GH: 02133751 Psoralidium tenuiflorum (Pursh) Rydberg USA: Arizona upper Box Canyon-Santa Rita Mts. R. A. Darrow 1937-6-13
GH: 02134910 Robinia neomexicana A. Gray USA: Arizona Santa Rita Mts. R. A. Darrow 1937-6-20
GH: 02345908 Vicia exigua Nuttall USA: Arizona Box Canyon, Santa Rita Mts. R. A. Darrow 1937-3-28
Lamiaceae GH: 01596863 Salvia columbariae Bentham USA: Arizona Apache Lake R. A. Darrow 1937-3-14
Onagraceae GH: 01624812 Calylophus hartwegii toumeyi (Small) Towner & P. H. Raven USA: Arizona Wonderland of Rocks, Chiricahua Mtns R. A. Darrow 1937-7-4
GH: 01625338 Camissonia californica (Nuttall ex Torrey & A. Gray) P. H. Raven USA: Arizona Flat Top Mt. Papago Indian Reservation R. A. Darrow 1937-3-7
Papaveraceae GH: 01857016 Eschscholzia californica mexicana (Greene) C. Clark USA: Arizona Box Canyon. Santa Rita Mts. R. A. Darrow 1937-3-28
GH: 01857017 Eschscholzia californica mexicana (Greene) C. Clark USA: Arizona Box Canyon, Santa Rita Mtns. R. A. Darrow 1937-3-28
Pinaceae GH: 00397571 Pinus arizonica Engelmann USA: Arizona Santa Catalina Mtns. R. A. Darrow 1937-10-3
GH: 00397904 Pinus cembroides Zuccarini USA: New Mexico Santa Rita Mts. R. A. Darrow 1937-6-13
GH: 00398925 Pinus leiophylla chihuahuana (Engelmann) Shaw USA: Arizona Santa Catalina Mtns R. A. Darrow 1937-10-3
GH: 01113338 Pseudotsuga menziesii (Mirbel) Franco USA: Arizona Santa Catalina Mts. R. A. Darrow 1937-10-3
Plantaginaceae GH: 02002032 Penstemon ambiguus Torrey USA: Arizona Oracle Junction R. A. Darrow 1937-4-25
GH: 02121578 Penstemon parryi (A. Gray) A. Gray USA: Arizona Rincon Mtns R. A. Darrow 1937-4-11
GH: 02122000 Penstemon pseudospectabilis M. E. Jones USA: Arizona Rincon Mts R. A. Darrow 1937-4-11
GH: 02122875 Penstemon subulatus M. E. Jones USA: Arizona Tortilla Flat, Apache Trail R. A. Darrow 1937-3-14
GH: 01802814 Plantago major Linnaeus USA: Arizona Elgin R. A. Darrow 1937-5-23
GH: 01803398 Plantago ovata Forsskål USA: Arizona Florence R. A. Darrow 1937-3-14
GH: 01803752 Plantago patagonica spinulosa (Decaisne) A. Gray USA: Arizona Sonoita R. A. Darrow 1937-6-13
Polemoniaceae GH: 01104050 Ipomopsis longiflora (Torrey) V. E. Grant USA: Arizona Artesia Mtns, near Sells. R. A. Darrow 1937-4-4
GH: 01105170 Leptosiphon chrysanthus J. M. Porter & R. Patterson USA: Arizona Tucson: Tucson Mts. R. A. Darrow 1937-3-21
Polygonaceae GH: 01717474 Chorizanthe brevicornu Torrey USA: Arizona Bear Canyon, Santa Catalina Mtns. R. A. Darrow 1937-3-27
GH: 01652091 Eriogonum deflexum Torrey USA: Arizona Santa Rita Range Reserve. R. A. Darrow 1937-5-9
GH: 01652097 Eriogonum deflexum Torrey USA: Arizona Vekol Valley, Casa Grande R. A. Darrow 1937-9-13
GH: 01851134 Eriogonum inflatum Torrey & Fremont USA: Arizona Phoenix: Papago Park R. A. Darrow 1937-5-3
GH: 01851137 Eriogonum inflatum Torrey & Fremont USA: Arizona Apache Junction R. A. Darrow 1937-3-14
GH: 02043107 Eriogonum trichopes Torrey USA: Arizona Santa Rita Range Reserve R. A. Darrow 1937-5-9
Portulacaceae GH: 01858163 Calandrinia ciliata (Ruiz & Pavon) de Candolle USA: Arizona Apache Junction R. A. Darrow 1937-3-14
Ranunculaceae GH: 01708519 Anemone tuberosa Rydberg USA: Arizona Apache Junction R. A. Darrow 1937-3-14
Rhamnaceae GH: 01972796 Rhamnus crocea ilicifolia (Kellogg) Greene USA: Arizona Peppersauce Cany, Santa Catalina Mts. R. A. Darrow 1937-4-16
Rosaceae GH: 01587900 Cercocarpus montanus paucidentatus (S. Watson) F. L. Martin USA: Arizona Santa Catlalina Mts. R. A. Darrow 1937-10-3
GH: 01587901 Cercocarpus montanus paucidentatus (S. Watson) F. L. Martin USA: Arizona Peppersauce Cany., Santa Catalina Mtns. R. A. Darrow 1937-10-3
GH: 01588995 Fallugia paradoxa (D. Don) Endlicher USA: Arizona Fife Spring -Chiricahua Mts. R. A. Darrow 1937-7-3
GH: 01701181 Rubus neomexicanus A. Gray USA: Arizona Santa Rita Mts. R. A. Darrow 1937-6-20
Rubiaceae GH: 02139305 Galium stellatum Kellogg USA: Arizona Tucson Mts. R. A. Darrow 1937-3-20
Scrophulariaceae GH: 01842500 Erythranthe nasuta (Greene) G. L. Nesom USA: Arizona Box Canyon, Santa Rita Mtns. R. A. Darrow 1937-3-28
Solanaceae GH: 01145756 Chamaesaracha sordida (Dunal) Gray USA: Arizona Vail R. A. Darrow 1937-5-2
GH: 00939425 Lycium fremontii A. Gray USA: Arizona Casa Grande R. A. Darrow 1937-5-3
GH: 01563125 Nicotiana obtusifolia Mertens & Galeotti USA: Arizona Vekol Valley, Casa Grande R. A. Darrow 1937-9-13
GH: 01563141 Nicotiana obtusifolia Mertens & Galeotti USA: Arizona South Mountain Park- Phoenix R. A. Darrow 1937-5-3
Tamaricaceae GH: 01942255 Tamarix gallica Linnaeus USA: Arizona Sacaton R. A. Darrow 1937-4-3
Urticaceae GH: 02170429 Parietaria hespera B. D. Hinton USA: Arizona Tucson Mtns. R. A. Darrow 1937-3-20
GH: 02170422 Parietaria hespera B. D. Hinton USA: Arizona Bear Cany. Santa Catalina Mtns. R. A. Darrow 1937-3-27
Zygophyllaceae GH: 01787753 Fagonia californica Bentham USA: Arizona Phoenix: South Mtn, Park R. A. Darrow 1937-5-3
