Rock-loving Sandwort - Arenaria congesta var. lithophila
Eremogone congesta var. lithophila
Perennial from a branched caudex, forming loose mats. Stems erect, simple, 5–30 cm. Leaves filiform, flexuous or rigid, glabrous, 2–8 cm long, shorter above. Inflorescence many-flowered, mostly open, glabrous; pedicels up to 6 mm long. Flowers: sepals glabrous, ovate to lanceolate, scarious-margined, 3–6 mm long; petals oblong, 5–8 mm long. Capsules glabrous, 3–6 mm long (adapted from Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
Variety lithophila can be distinguished from the other varieties in Montana by its more open inflorescence (the flowers are not capitate or crowded).
AB and SK south through ID, MT, WY, CO and UT (Kartesz 2009).
Observations in Montana Natural Heritage Program Database
Number of Observations:
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Map Help and Descriptions
(Observations spanning multiple months or years are excluded from time charts)
Open, rocky, sagebrush slopes and hillsides; 800-3100 m (Hartman et al. 2005, Fl. North America, Vol. 5).
- Additional ReferencesLegend: View Online Publication
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- Lesica, P., M. T. Lavin, and P. F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.