Oxytropis podocarpa
Proc. Amer. Acad. Arts 6: 234. 1864.
Plants cespitose, appearing acaulescent; caudex subterranean or superficial; branches sometimes elongate, with persistent, pale stipules and leaf bases. Leaves 0.5–6 cm; stipules membranous, stramineous, 7–13 mm, glabrous, margins ciliate; leaflets (5–)9–13, opposite, blades linear-lanceolate to linear, (4–)5–8.5(–12) mm, usually involute and falcate, apex acute, surfaces greenish, sparsely hirsute. Peduncles 0.5–5 cm, pubescent; bract ovate to lanceolate, pilose. Racemes 1–3-flowered, subcapitate. Calyces campanulate, pilose; tube 5–7 mm, lobes (1–)2–3 mm. Corollas often purple, sometimes white, 12–15(–19) mm. Legumes spreading, stipitate, stipe 1.5–3 mm, ovoid-ellipsoid or bladdery-inflated, 15–25(–38) × 10–17(–20) mm, subunilocular, thin-papery, strigose-pilosulous.
Phenology: Flowering summer.
Habitat: Rocky alpine ridges, coastal shores.
Elevation: 0–3900 m.
Distribution
Alta., B.C., Nfld. and Labr. (Labr.), Nunavut, Que., Colo., Mont., Wyo.
Discussion
Plants with flowers alone are difficult to separate from Oxytropis nigrescens; the folded, typically falcate leaflets of O. podocarpa are diagnostic. Oxytropis podocarpa is a species of conservation concern in Montana.
Selected References
None.