Gray Horsebrush - Tetradymia canescens
MNPS Threat Rank
Plants to 80 cm tall. Stems unarmed; twigs tomentose. Primary leaves narrowly oblanceolate, 1–2 cm long, tomentose; fascicled leaves smaller. Inflorescence heads terminating branches in a corymbiform array. Involucre 7–10 mm high; phyllaries 4, tomentose. Disk corollas 7–12 mm long. Achenes 3–5 mm long glabrous or sericeous (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
BC south to CA, AZ and NM (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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- Additional ReferencesLegend: View Online Publication
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- Grove, A.J. 1998. Effects of Douglas fir establishment in southwestern Montana mountain big sagebrush communities. M. Sc.Thesis. Bozeman, MT: Montana State University. 150 p.
- Guenther, G.E. 1989. Ecological relationships of bitterbrush communities on the Mount Haggin Wildlife Management Area. M.Sc. Thesis. Bozeman, MT: Montana State University. 73 p.
- Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.