Flaxleaf Plainsmustard - Schoenocrambe linifolia
Salmon River Plains-mustard,
Sisymbrium linifolium, Hesperidanthus linearifolius, Thelypodiopsis linearifolia
Glabrous, rhizomatous perennial. Stems erect, branched, 20–70 cm from a branched caudex. Leaves all cauline, sessile, linear, 25–60 mm long, entire, inrolled. Inflorescence an ebracteate raceme. Flowers yellow; petals 6–10 mm long. Fruits linear siliques, 2–6 cm long; style up to 1 mm long; seeds in 1 row per locule; pedicels ascending, 4–6 mm long (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX
BC to OR, MT, WY to NV, UT and NM. East of the Cascades.
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)
- Literature Cited AboveLegend: View Online Publication
- Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
- Additional ReferencesLegend: View Online Publication
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- Quire, R.L. 2013. The sagebrush steppe of Montana and southeastern Idaho shows evidence of high native plant diversity, stability, and resistance to the detrimental effects of nonnative plant species. M.Sc. Thesis. Bozeman, MT: Montana State University. 124 p.
- Sater, S. 2022. The insects of Sevenmile Creek, a pictorial guide to their diversity and ecology. Undergraduate Thesis. Helena, MT: Carroll College. 242 p.