Flora of North America species comparison

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Astragalus sect. Drabella
Habit Herbs perennial, tufted, diminutive, mat-forming, or pulvinate, usually acaulescent, rarely subacaulescent; caudex superficial.
Stems

mostly reduced to crowns, usually obscured by marcescent leaf bases or stipules.
Leaves

dimorphic, most proximal ones reduced to phyllodia, sessile;

leaflets 0(or 3–7), jointed.
Racemes

sometimes subumbellate, loosely or compactly flowered, flowers ascending.
Corollas

pink to purple, ochroleucous, or whitish, banner recurved through 45–90°, keel apex obtuse.
Calyx

tubes campanulate or turbinate-campanulate.
Legumes

eventually deciduous or nearly persistent, sessile, erect or ascending (humistrate), ellipsoid to linear, oblong, or lanceoloid, usually laterally compressed, with sutures protruding, sometimes bluntly 3-sided and sulcate abaxially, unilocular.
Seeds

4–24.
Hairs

malpighian, herbage usually silvery.
Stipules

connate.

Astragalus sect. Drabella
Distribution
w North America
Discussion

Species 5 (5 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Astragalus
Subordinate taxa
Synonyms Homalobus
Name authority (Torrey & A. Gray) Barneby: Leafl. W. Bot. 5: 3. (1947) — (as Drabellae)
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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(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Apiaceae, Boraginaceae, and Polemoniaceae.)

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