630508 Astragalus robbinsii (Oakes) A. Gray
- A. Gray, Manual, ed. 2: 98 (1856). - Phaca robbinsii Oakes, Mag. Hort. Bot. 7: 181 (1841). Syntypes (GH, NY, PH): U.S.A.: Vermont, Burlington, "banks of the Onion river", 1829, leg. J.W. Robbins.
2n=
(1) 16 (2x). - Ledingham (1960).
(2) 32 (4x). - Canada (Quebec). - Gervais et al. (1999, for subsp. fernaldii).
Geography: American Beringian - Cordilleran & North American (NE).
Notes: Murray and Elven: Hultén (1968b) accepted two races of Astragalus robbinsii, both reaching the Arctic: subsp. robbinsii and subsp. harringtonii. Yurtsev (PAF proposal) accepted two species. Welsh (2007) considered A. robbinsii a polymorphic species with eight varieties. He restricted the name var. robbinsii to a now extinct population in Vermont in northeastern U.S.A. (together with two other eastern races), whereas he considered the most widespread race in the west to be var. minor (this one also disjunctly present in New England), besides acceptance of subsp. harringtonii as a variety. We follow ranks as proposed by Welsh.
Higher Taxa
- Astragalus [6305,genus]