Montana Field Guide

Plants annual, less than 4 dm tall; steems more or less peeling below and more or less strigose. Petioles 3-12 mm long. Leaves generally alternate below, clustered above, 5-30 mm, sublinear to lanceolate, generally folded along midrib. Inflorescence crowded, densely strigose. Hypanthium 0.4-0.8 mm long. Sepals 1.5-2.5 mm long; petals 1.8-3 mm long, white. Fruit 12-20 mm long, sparsely hairy; pedicel 2-5 mm long. Seeds 0.6-0.9 mm long, low-papillate (Hoch 1993, The Jepson Manual).

POLLINATORS
The following animal species have been reported as pollinators of this plant species or its genus where their geographic ranges overlap: Bombus bifarius, Bombus centralis, Bombus fervidus, Bombus flavifrons, Bombus frigidus, Bombus melanopygus, Bombus mixtus, Bombus rufocinctus, Bombus sylvicola, Bombus ternarius, Bombus sitkensis, Bombus occidentalis, Bombus griseocollis, Bombus impatiens, Bombus insularis, Bombus suckleyi, and Bombus kirbiellus (Thorp et al. 1983, Mayer et al. 2000, Colla and Dumesh 2010, Wilson et al. 2010, Colla et al. 2011, Koch and Strange 2012, Koch et al. 2012, Pyke et al. 2012, Williams et al. 2014).