Montana Field Guide

Rhizomatous perennial. Stems erect, 20–80 cm, simple or branched. Herbage hirsute, aromatic. Leaves short-petiolate to sessile; blades 3–9 cm long, lanceolate, truncate, serrate. Inflorescence of verticillasters in a terminal, interrupted, bracteate spike. Flowers: calyx glandular-villous, 5–9 mm long, lobes equal, purplish; corolla purple, spotted, 10–15 mm long, bilabiate, the upper lip hood-like, the lower 3-lobed; stamens 4, included; style subequally 2-lobed. Nutlets rounded above (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Our plants are subspecies pilosa (Nutt.) Epling

Moist or wet soil of marshes, wet meadows, often around streams, ponds; plains, valleys, montane (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 fervidus, Bombus mixtus, Bombus nevadensis, Bombus sitkensis, Bombus pensylvanicus, and Bombus impatiens (Thorp et al. 1983, Colla and Dumesh 2010, Williams et al. 2014).