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Three-leaf Bitterroot - Lewisia triphylla
(see State Rank Reason below)
State Rank Reason (see State Rank above)
Numerous recent collections from secure habitats. Possibly undercollected.
Roots a globose corm 5–15 mm across. Stems 1 to many, ascending, 2–6 cm. Basal leaf blades linear, 1–6 cm long, absent at flowering. Stem leaves opposite or whorled, linear, 1–4 cm long. Flowers in bracteate cymes; sepals 2, 2–5 mm long with entire margins; petals 5 to 9, white to pink, 5–7 mm long; stamens 5; style branches 3 to 5 (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX
Possibly confused with early-season Montia linearis or M. dichotoma, which occur in lowlands and are not known in Montana.
Western MT east to Park County; WA to MT south to CA and CO (Lesica et al. 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)
Seepy and seasonally moist sites, usually where sandy or gravelly, rarely on finer soils. Mostly occurs in high-montane and subalpine habitats.
- 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.
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