Montana Field Guide

Stems erect or ascending, spineless, 1–1.5 m. Twigs with sessile, yellow glands, pubescent; the bark gray to black. Leaf blades 1–7 cm wide, shallowly cordate to truncate at the base, 3(5)-lobed, shallowly to deeply dentate, the underside sparsely pubescent and glandular. Inflorescence 4- to 10-flowered, spreading, ca. as long as the leaves. Flowers tubular-campanulate, 6–10 mm long, green to white, pubescent; calyx lobes 2–4 mm long, narrowly oblong; petals white, 2–3 mm long; stamens equaling the petals; styles glabrous, united to the tip. Berry glabrous, 5–9 mm long, black, unpalatable (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Woodlands, streambanks, riparian forests, swamps; plains, valleys (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

POLLINATORS
The following animal species have been reported as pollinators of this plant species or its genus where their geographic ranges overlap: Bombus vagans, Bombus bifarius, Bombus centralis, Bombus fervidus, Bombus flavifrons, Bombus huntii, Bombus melanopygus, Bombus mixtus, Bombus nevadensis, Bombus terricola, Bombus sitkensis, Bombus occidentalis, Bombus pensylvanicus, Bombus bimaculatus, Bombus impatiens, Bombus insularis, and Bombus flavidus (Plath 1934, Thorp et al. 1983, Colla and Dumesh 2010, Koch et al. 2012, Williams et al. 2014).