Astragalus missouriensis var. mimetes
Astragalus sect. Argophylli
horn loco milkvetch, mimic milkvetch
to 15 cm.
(when present) obsolete, single, few, or several to many.
odd-pinnate, usually petiolate, rarely short-petiolate or subsessile;
leaflets (1 or)3–39(–43).
(3–)5–15-flowered.
subcapitate to loosely flowered, flowers erect, ascending, spreading, declined, or nodding, secund, and retrorsely imbricate.
calyx 5–5.8 mm, tube 4.1–4.8 mm, lobes 0.7–1.1 mm;
corolla bright pink-purple or violet-red, wings darker, banner with pale center;
banner 9.5–11.8 mm;
keel 8.9–10.6 mm.
purple, pink-purple, magenta-purple, violet, bluish, lilac, scarlet, ochroleucous, greenish white, or white, banner barely recurved (A. phoenix) or recurved through 20–50° (90–100° in A. accumbens), keel apex obtuse.
tubes cylindric or deeply campanulate.
ascending, initially subterete or ± dorsiventrally compressed, incurved, subsymmetrically oblong-ellipsoid, somewhat laterally compressed and obtuse-angled when mature, 14–24 × 5–7.5(–9) mm, subunilocular, base obtuse or, sometimes, cuneate, apex abruptly contracted into subulate, pungent beak, sutures prominent, strigulose.
usually deciduous, usually sessile, rarely subsessile or substipitate, gynophore sometimes present, usually ascending (humistrate), less often spreading or pendulous, subglobose to ellipsoid, narrowly lanceoloid, ovoid or oblong-ellipsoid, or lanceoloid-ovoid, straight or usually incurved, usually compressed dorsiventrally, sometimes obcompressed, 3-sided, turgid, or inflated, unilocular, subunilocular, or bilocular.
36–46.
11–70.
basifixed or malpighian.
distinct (except anomalous forms of A. missouriensis, A. tephrodes, and A. zionis).
Astragalus missouriensis var. mimetes
Astragalus sect. Argophylli
Variety mimetes occurs in the Rio Grande Valley in Valencia and Socorro counties, New Mexico, and in northeastern Arizona. In its small flowers and fruits, it resembles Astragalus accumbens, with which it has been confused.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Species 44 (44 in the flora).
Section Argophylli comprises ten subsections, widespread in western North America from southern British Columbia and Saskatchewan southward to northern Baja California, northern Sonora, and western Texas.
The subsections are: subsect. Argophylli (A. Gray) M. E. Jones (Astragalus argophyllus, A. callithrix, A. columbianus, A. cyaneus, A. desereticus, A. eurylobus, A. henrimontanensis, A. iodopetalus, A. piutensis, A. shortianus, A. tephrodes, A. tidestromii, A. uncialis, A. zionis); subsect. Pseudargophylli Barneby (A. feensis, A. waterfallii); subsect. Neomexicani Barneby (A. neomexicanus); subsect. Newberryani M. E. Jones (A. eurekensis, A. loanus, A. musiniensis, A. newberryi, A. phoenix, A. welshii); subsect. Concordi S. L. Welsh (A. concordius); subsect. Coccinei M. E. Jones (A. coccineus); subsect. Eriocarpi (A. Gray) Barneby (A. anserinus, A. funereus, A. inflexus, A. leucolobus, A. nudisiliquus, A. purshii, A. subvestitus, A. utahensis); subsect. Parryani Barneby (A. parryi); subsect. Missourienses M. E. Jones (A. accumbens, A. amphioxys, A. castaneiformis, A. chamaeleuce, A. consobrinus, A. cymboides, A. laccoliticus, A. missouriensis, A. piscator); and subsect. Anisi Barneby (A. anisus).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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