Alpine Smelowskia - Smelowskia calycina
MNPS Threat Rank
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 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 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)