Astragalus scaphoides
| Bitterroot Milkvetch | |
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| Species: | A. scaphoides
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| Astragalus scaphoides [[]]
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Astragalus scaphoides (Bitterroot milkvetch), is a flowering plant in the family Fabaceae, found only in a small area of southwest Montana and adjacent parts Idaho. It grows in shallow, south facing slopes, in semi-arid sage scrub.
Astragalus scaphoides is a perennial herbaceous plant, with pinnate leaves. The pale yellow flowers open in May and are visited by several species of bumblebees and solitary bees, including species from the genera Osmia and Anthophora.
Plants can be found near Lemhi Pass on the Montana-Idaho border, and near Bannack State Park in Montana.
Plants tend to flower in alternate years[1], similar to mast years in trees.
References
- ^ Gurevitch, J., S. M. Scheiner, and G. A. Fox. The Ecology of Plants, Second Edition. Sinauer Associates, Inc., Sunderland MA USA
External links