Flora of North America species comparison

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Astragalus sect. Oocalyces
Habit Herbs perennial, selenophytes, caulescent; caudex superficial or shallowly subterranean.
Stems

several to many.
Leaves

odd-pinnate, short-petiolate or subsessile;

leaflets (9–)19–27.
Racemes

densely flowered, flowers nodding.
Corollas

ochroleucous, banner recurved through 45°, keel apex round.
Calyx

tubes deciduous, obliquely ovoid, accrescent and inflated, enclosing small pod.
Legumes

deciduous, sessile, gynophore present, curved, declined, oblong-ellipsoid, strongly obcompressed with 2 adaxial grooves, unilocular.
Seeds

6–8.
Hairs

basifixed.
Stipules

connate at proximal nodes, distinct at distal nodes.

Astragalus sect. Oocalyces
Distribution
sw United States
Discussion

Species 1.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Astragalus
Subordinate taxa
Name authority Barneby: Mem. New York Bot. Gard. 13: 419. (1964)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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