Stalked-pod Locoweed - Oxytropis podocarpa
State Rank Reason (see State Rank above)
Rare in Montana, where it is known from a small area of the Rocky Mountain Front. The remote habitat should limit the possibily of negative impacts.
Stalked-pod Crazyweed is a perennial that usually forms small, dense cushions. Its naked stems are erect or prostrate and up to 7 cm long. The basal leaves are 2-5 cm long and pinnately divided into 9-27 narrowly lance-shaped leaflets. The herbage is covered with stiff, silvery hairs. The 1-2 purple flowers resemble pea flowers and are held erect at the top of the stem. The corolla is 12-17 mm long, and the tubular calyx is purplish and 2/3 the length of the corolla. The papery, inflated pod is 15-25 mm long and ovoid in outline.
Flowering in June, fruiting late June-August.
This is our only purple-flowered Oxytropis with fewer than 4 flowers. Species of alpine Astragalus have leafy stems.
AB to CO; Baffin Island to NL (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Observations in Montana Natural Heritage Program Database
Number of Observations:
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Map Help and Descriptions
(Observations spanning multiple months or years are excluded from time charts)
Gravelly ridges and slopes, often on limestone, in the alpine zone.
Ecological Systems Associated with this Species
- Commonly Associated with these Ecological Systems
- Additional ReferencesLegend: View Online Publication
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- Lesica, P., M. T. Lavin, and P. F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.