Arrow-leaf Rattlesnake-root - Prenanthes sagittata
MNPS Threat Rank
Stems erect, usually simple 15–70 cm. Herbage glabrous. Leaf blades sagittate, dentate to lobed on the lower half, 3–15 cm long. Inflorescence racemose; heads nodding in fruit. Involucre 7–13 mm high; phyllaries glabrous. Rays 7 to 20, white; ligules 7–9 mm long. Achenes ca. 5 mm long; pappus tawny (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
BC, AB, ID and MT (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)
Moist soil of thickets, wet meadows, open forest, especially along streams; montane, subalpine (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
The following animal species have been reported as pollinators of this species or genera where their geographic ranges overlap: Bombus fervidus
and Bombus impatiens
(Thorp et al. 1983, Colla and Dumesh 2010).
- Literature Cited AboveLegend: View Online Publication
- Colla, S.R. and S. Dumesh. 2010. The bumble bees of southern Ontario: notes on natural history and distribution. Journal of the Entomological Society of Ontario 141: 39-68.
- Thorp, R.W., D.S. Horning, and L.L. Dunning. 1983. Bumble bees and cuckoo bumble bees of California (Hymenoptera: Apidae). Bulletin of the California Insect Survey 23:1-79.
- Additional ReferencesLegend: View Online Publication
Do you know of a citation we're missing?
- Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.