Astragalus americanus (Hook.) M. E. Jones
 
FamilyLeguminosae — APG family: Fabaceae
SynonymsAstragalus gaspensis Rousseau., Phaca americana (Hook.) Rydb., Phaca frigida var. americana Hook., Astragalus frigidus var. americanum (Hook.) S. Wats.
DescriptionStem stout, glabrous or nearly so, from woody caudex; stipules membranaceous, oblong to ovate; racemes many-flowered, usually shorter than leaves; calyx glabrous, the teeth triangular-ciliate; corolla ochroleucous; legume inflated, membranaceous, long-stipitate, ellipsoid, mostly glabrous.
EcologyMeadows, banks of streams. Described from the Rocky Mountains, 52-56°, and from Great Slave Lake.
Taxonomy
notes
Broken line on circumpolar map indicates range of the very closely related A. frigidus (L.) Gray (Phaca frigida L.) , of Eurasia.
Hultén's Flora About

This is a digital representation of Eric Hultén’s ‘Flora of Alaska and Neighboring Territories: A Manual of the Vascular Plants’, which was published by Stanford University Press in 1968. The book was digitized by C. Webb (at UAMN) as part of the Flora of Alaska project, with funding by the US NSF (Grant 1759964 to Ickert-Bond & Webb), and with permission of Stanford University Press. Data and images © 1968 Board of Trustees of the Leland Stanford Jr. Univ. Usage licence: Creative Commons BY-NC-SA 4.0. NB: You may find OCR errors; please refer to the hard-copy if in doubt.