Astragalus sect. Inflati
single, few, or several to many.
odd-pinnate, subsessile to petiolate;
leaflets (3 or)5–35.
loosely or densely flowered, flowers spreading to ascending or declined.
white, whitish, yellowish, lilac, blue-violet, or pink-purple, often drying violet, banner recurved through 40–125°, keel apex rounded, deltate, or narrowly triangular, often beaklike.
tubes campanulate, turbinate-campanulate, or obconic-campanulate.
usually deciduous, sessile, gynophore sometimes present, spreading, ascending, or declined, globose to ovoid, lanceoloid-oblong, or -ellipsoid, bladdery-inflated or slightly swollen, usually unilocular, rarely semibilocular.
(3–)6–58(–76).
basifixed.
usually distinct, rarely connate at proximal nodes.
Astragalus sect. Inflati
Species 35 (28 in the flora).
Section Inflati consists of five subsections: subsect. Macrodontes M. E. Jones (Astragalus deanei, A. douglasii, A. macrodon, A. oocarpus); subsect. Proriferi M. E. Jones (A. magdalenae, A. palmeri); subsect. Aridi M. E. Jones (A. allochrous, A. aquilonius, A. aridus, A. beatleyae, A. cerussatus, A. endopterus, A. geyeri, A. gilmanii, A. insularis, A. nutans, A. pardalinus, A. perianus, A. pubentissimus, A. sabulonum, A. serpens, A. thurberi, A. wardii, A. wootonii); subsect. Sparsiflori (M. E. Jones) Barneby (A. diaphanus, A. sparsiflorus, A. wetherillii); and subsect. Horniani Barneby (A. hornii).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
