Hedysarum occidentale
western hedysarum, western sweet-vetch
decumbent to erect, (1.2–)2–9.5 dm.
3.5–23 cm;
stipules 10–17 mm;
leaflets 9–19, blades lanceolate to ovate, elliptic, or oblong, 5–40 × 3–16 mm, veins conspicuous, surfaces usually pubescent, rarely glabrous adaxially.
10–50-flowered, axis 4–25 cm in fruit;
bracts 1–4 mm.
(3–)6–15 cm.
1–3.5 mm.
usually declined at anthesis;
calyx 3.5–11 mm;
tube 3–9 mm, puberulent;
lobes subulate to triangular, 0.5–2 mm, equal or nearly so;
corolla usually lavender-pink or lilac- to pink-purple, rarely white, 16–25 mm;
wing auricles connate, linear, nearly equal or equal to claw.
segments (1 or)2–5, 7–14.5(–18) × 5.6–10.2(–11) mm, margins conspicuously winged, prominently reticulate, pubescent or glabrous.
Hedysarum occidentale
Varieties 2 (2 in the flora).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Leaflet blades usually 2–4 times longer than wide, not or rarely thickened, not especially deciduous; flowers 16–22 mm, usually lilac- to pink-purple, rarely white; widespread. | var. occidentale |
1. Leaflet blades mostly 1–2 times longer than wide, becoming thickened, early deciduous; flowers (17–)20–25 mm, pale lavender-pink; w Colorado, e Utah. | var. canone |
BC
WA
Flora NW
PNW Herbaria
SW CO Wildflowers
WildflowerSearch
iNaturalist
USDA Plants Database
