Dalea purpurea var. arenicola (Wemple) Barneby
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Authors
Rupert C. Barneby
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Authority
Barneby, Rupert C. 1977. Daleae Imagines, an illustrated revision of Errazurizia Philippi, Psorothamnus Rydberg, Marine Liebmann, and Dalea Lucanus emen. Barneby, including all species of Leguminosae tribe Amorpheae Borissova ever referred to Dalea. Mem. New York Bot. Gard. 27: 1-892.
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Family
Fabaceae
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Scientific Name
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Type
based on Petalostemon arenicola (dwelling on sand) Wemple, Iowa State Jour. Sci. 45(1): 94, figs. 8 (phototype), 11, I (petals), 12, D + map 13. 1970. — "Typus, ISC (Wemple 319)." — Holotypus, collected on stabilized dunes 5.5 mi s. of Lakin, Kearney Co.,
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Synonyms
Petalostemon arenicola Wemple
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Description
Species Description - Closely resembling smaller forms of var. purpurea except in the narrow and usually pedunculate spikes; stems up to 2-4.5 dm long; foliage glabrous or nearly so; peduncles, at least of central or primary spikes, 3-15 cm long; spikes 7-8.5 mm diam, the axis 1-4 (5) cm long; 2n = 14 (Wemple, 1970, p. 12). — Collections: 25 (iii).
Distribution and Ecology - Sandy bluffs, dunes, and sandy alluvial flats along streams or dry watercourses, 570-1300 m (1900-4330 ft), locally abundant on the Staked Plains and short-grass prairies drained by the upper Red and Canadian rivers in n.-w. Texas, immediately adjacent New Mexico, and far w. Oklahoma, in Texas s. to the sources of the Colorado and Concho rivers, n. through the s.-w. quarter of Kansas drained by the Cimarron and Arkansas rivers and extreme e. Colorado on the upper Republican and Frenchman rivers to the forks of the Platte in w. Nebraska, there passing into var. purpurea.—Flowering (May) June to August.
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Discussion
(Plate LVIII)
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Objects
Representative: Colorado: Ripley & Barneby 10,164 (NY); Stephens & Brooks 24,075 (NY). Kansas: Rydberg & Imler 718, 926 (NY); Barneby 14,986 (CAS, IA, NY), 14,987 (NY). Oklahoma: Waterfall 8970, 9055 (NY). Texas: Reverchon 3007 (NY); Ferris & Duncan 3360, 3510 (NY). New Mexico: Goodman & Hitchcock 1116 (NY, UC).
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Distribution
Colorado United States of America North America| Oklahoma United States of America North America| New Mexico United States of America North America| Texas United States of America North America| Kansas United States of America North America| United States of America North America|