Alpine Smelowskia - Smelowskia calycina
Caespitose perennial from a branched caudex clothed in old leaf bases. Stems erect, simple, 3–20 cm. Leaves basal and cauline, ciliate-petiolate, 1–7 cm long, deeply pinnately lobed into narrowly oblong segments, reduced upward. Vestiture of dense simple and branched hairs. Inflorescence a raceme, bracteate below. Flowers white to pinkish; petals 4–8 mm long. Fruits 5–9 mm long, narrowly allipsoid siliques with a prominent midvein; style 0.3–0.5 mm long; seeds in 1 row per locule; pedicels ascending-erect, 4–9 mm long. Stony soil of moraine, cliffs, talus slopes, fellfields; upper subalpine to alpine. (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX
Montana plants are variety americana
(Regel & Herder) Drury & Rollins.
Stony soil of moraine, cliffs, talus slopes, fellfields; upper subalpine to alpine (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX
The following animal species have been reported as pollinators of this plant species or its genus where their geographic ranges overlap: Bombus insularis
and Bombus flavidus
(Wilson et al. 2010).