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.
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Stalked-pod Locoweed (Oxytropis podocarpa) Conservation Status Review
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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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(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.