Flora of North America species comparison

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Astragalus sect. Drummondiani
Habit Herbs perennial, forming bushy clumps, caulescent; caudex superficial to shallowly subterranean.
Stems

several to many.
Leaves

odd-pinnate, usually subsessile;

leaflets (13–)17–33.
Racemes

loosely flowered, flowers nodding.
Corollas

white to ochroleucous, keel apex purple, banner recurved through 45°, keel apex deltate.
Calyx

tubes deeply campanulate, often slightly swollen, oblique proximally.
Legumes

persistent or ultimately deciduous, continuous with receptacle, stipitate, pendulous, narrowly oblong to oblanceoloid, straight or incurved or decurved, obscurely 3-sided compressed, with convex lateral and grooved dorsal faces, ± bilocular.
Seeds

14–30.
Hairs

basifixed.
Stipules

distinct or connate at proximal nodes.

Astragalus sect. Drummondiani
Distribution
w North America
Discussion

Species 1.

Section Drummondiani is distributed from southeastern British Columbia to Saskatchewan southward through Montana, western North Dakota, western South Dakota, eastern Idaho, Wyoming, western Nebraska, and Colorado to northern New Mexico and disjunctly westward to Utah.

(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: 489. (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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