EcoFlora - Astragalus endopterus

Astragalus endopterus (Barneby) Barneby
Family: Fabaceae Sandbar Milk-Vetch, more...sandbar milkvetch [Astragalus wootonii var. endopterus Barneby] Teague Embrey	AZ Game and Fish Resources Arizona Game and Fish Department: 2004 Unpublished abstract compiled and edited by the Heritage Data Management System, Arizona Game and Fish Department, Phoenix, AZ DESCRIPTION: Herbaceous annual with 4 or 5 pairs of leaflets. Peduncles up to 2 cm long, very slender, borne on nearly the whole length of the stem. Pods membranaceous, mottled, the ventral suture introverted as a wing 2.5 to 3.5 mm wide. (Kearney and Peebles, 1951). For the Species A. wootoni, which A. endopterus used to be a variety of, flowers are whitish, often tinged with pink, lavender or lilac (McDougall, 1973). AIDS TO IDENTIFICATION: Differs from A. wootoni var. typicus, in that var. typicus has leaflet pairs of 6 to 9; peduncles up to 5 cm long, stout, borne in the median and upper axils; and pods that are chartaceous, seldom mottled, the ventral suture filiform or the wing less than 1 mm wide. A. endopterus is smaller in all its parts than A. allochrous, but otherwise very similar. (Kearney and Peebles, 1951).
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