Astragalus sect. Lonchocarpi
single or few to several.
odd-pinnate, sessile or subsessile to petiolate;
leaflets (0–)3–21, or lateral leaflets fewer and terminal leaflet continuous with rachis.
loosely flowered, flowers ascending, spreading, declined, or nodding.
whitish, ochroleucous, yellow, or pink-purple to dull lavender or purple, petals often strongly recurved, banner recurved through 30–130°, keel apex obtuse, acute, or triangular, sometimes beaklike.
tubes usually campanulate, rarely cylindric.
persistent or eventually deciduous, continuous with receptacle, sessile, subsessile, or stipitate, usually declined or pendulous, rarely spreading, ascending, or erect, linear-oblong to linear-oblanceoloid, ellipsoid, ovoid-ellipsoid and bladdery, compressed laterally or dorsiventrally, or 3-sided or 4-sided, usually unilocular, rarely semibilocular.
8–42.
basifixed.
distinct or connate (±) proximally.
Astragalus sect. Lonchocarpi
Species 17 (17 in the flora).
Section Lonchocarpi consists of five subsections distributed in the Colorado Basin, southeastern Great Basin, and eastward and southeastward to Colorado and New Mexico.
The subsections are: subsect. Pseudogenistoidei Barneby (Astragalus titanophilus, A. xiphoides); subsect. Pseudostrigulosi Barneby (A. cronquistii); subsect. Aequales Barneby (A. pinonis, A. atwoodii, A. aequalis); subsect. Lancearii Barneby (A. episcopus, A. lancearius, A. duchesnensis, A. nidularius, A. harrisonii); and subsect. Lonchocarpi (A. Gray) Barneby (A. coltonii, A. ripleyi, A. schmolliae, A. tortipes, A. lonchocarpus, A. hamiltonii).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
