Flora of North America species comparison

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Astragalus sect. Quinqueflori
Habit Herbs perennial or (precocious) annual, caulescent, very slender, inconspicuous; caudex superficial.
Stems

few to several.
Leaves

odd-pinnate, often shorter than distal racemes, petiolate;

leaflets 5–15.
Racemes

dimorphic, proximal ones subradical and often reduced to a single flower, more distal ones loosely 2–7-flowered, flowers ascending.
Corollas

ochroleucous or violet-tinged, banner recurved through 90°, keel apex strongly incurved, obtuse.
Calyx

tubes campanulate.
Legumes

persistent or eventually deciduous, sessile or subsessile, humistrate, obovoid to oblong-ellipsoid, straight or ± decurved, slightly compressed dorsiventrally, semibilocular.
Seeds

14–18.
Hairs

basifixed.
Stipules

distinct or ± connate at proximal nodes.

Astragalus sect. Quinqueflori
Distribution
sw United States; Mexico
Discussion

Species 2 (1 in the flora).

Section Quinqueflori comprises a solitary species in the southwestern United States and Astragalus quinqueflorus S. Watson in Mexico.

(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: 478. (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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