Rubber Rabbitbrush - Ericameria nauseosa var. speciosa
Chrysothamnus nauseosus ssp. albicaulis
MNPS Threat Rank
See species description.
Variety speciosa can be distinguised from the others by the following characters: involucre 8-14 mm long, whitish-tomentose at least at the base; corollas 9-13 mm long, usually puberulent (rarely arachnose) (Urbatsch et al., 2003, Fl. North America, Vol. 20; Lesica 2012).
BC to MB south to ID, AZ, NM and TX (Kartesz 2009).
The following animal species have been reported as pollinators of this species or genera where their geographic ranges overlap: Bombus bifarius
, Bombus centralis
, Bombus huntii
, and Bombus melanopygus
(Williams et al. 2014).
- Literature Cited AboveLegend: View Online Publication
- Williams, P., R. Thorp, L. Richardson, and S. Colla. 2014. Bumble Bees of North America. Princeton, NJ. Princeton University Press.
- Additional ReferencesLegend: View Online Publication
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- Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.