Purple Clematis - Clematis occidentalis
Clematis columbiana [misapplied]
(see State Rank Reason below)
MNPS Threat Rank
State Rank Reason (see State Rank above)
Common and widespread in western and central Montana.
Stems limber, to 2 m long, often climbing. Leaf blades sparsely long-hairy, divided into 3 cordate-lanceolate leaflets, 2–7 cm long with obscurely toothed margins. Flowers bell-shaped, perfect, nodding, solitary from leaf nodes; sepals blue, 2–5 cm long. Achene beaks 2–5 cm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
BC to NB south to OR, UT, CO, and OH (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)
Open to closed forest, thickets, often along streams, occasionally on talus; valleys, montane, occasionally higher (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
- Additional ReferencesLegend: View Online Publication
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- Jones, W. W. 1901. Preliminary flora of Gallatin County. M.S. Thesis. Bozeman, MT: Montana State College. 78 pp.
- King, C. R. 1953. The Ranunculaceae of Montana. M.S. Thesis, Bozeman, MT: Montana State College. 82 p.
- Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
- Simanonok, M. 2018. Plant-pollinator network assembly after wildfire. Ph.D. Dissertation. Bozeman, MT: Montana State University. 123 p.