Flora of North America species comparison

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Astragalus sect. Pectinati
Habit Herbs perennial, selenophytes, clump-forming, caulescent; caudex subterranean or superficial.
Stems

several to many.
Leaves

odd-pinnate, sessile, subsessile, or petiolate;

leaflets (0 or 1–)5–15(–21), confluent with rachis or reduced to phyllodia.
Racemes

densely or loosely flowered, flowers ascending to declined or nodding.
Corollas

white, cream, ochroleucous, or pink-purple, banner recurved through 40–50°, keel apex obtuse.
Calyx

tubes cylindric.
Legumes

persistent, usually sessile, rarely stipitate, erect, deflexed, or pendulous, linear-ellipsoid, narrowly oblong, oblong-ellipsoid, or ellipsoid, compressed dorsiventrally or laterally, sutures protruding, unilocular.
Seeds

12–32.
Hairs

basifixed.
Stipules

connate or distinct at distal nodes.

Astragalus sect. Pectinati
Distribution
w North America
Discussion

Species 8 (8 in the flora).

Section Pectinati consists of two subsections: subsect. Osterhoutiani Barneby (Astragalus osterhoutii) and subsect. Pectinati (A. Gray) M. E. Jones (the other seven species).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Astragalus
Subordinate taxa
Name authority A. Gray: Proc. Amer. Acad. Arts 6: 221. (1864)
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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