Synonyms: Acetosa gracilescens, Acetosella paucifolia, Rumex paucifolius ssp. gracilescens
Mountain sorrel as seen at Summit Prairie, Malheur National Forest...........June 26, 2011.
Mountain sorrel is also known as alpine or mountain sheep-sorrel. It is a glabrous perennial with one to several slender, unbranched stems arising 15-60 cm high from a branched crown and thick taproot. All but 1-3 of the leaves are basal. The leaf blades are lanceolate or lanceolate-oblong (See photo below.) with obtuse tips and measure from 6-12 cm long. The petioles are very long with the blade tapering gradually into the petiole. The several stem leaves are greatly reduce upwards on the stem.
Mountain sorrel is found in moist meadows from the lower slopes to above timberline.
Mountain sorrel is found to the east of the Cascade crest from southern British Columbia south to the southern Sierra Nevada in California and east to the eastern slopes of the Rocky Mts from Alberta south to Colorado.
-Close-ups of the whole plant and of the developing panicle of mountain sorrel as seen at Jackman Park on the Steens Mt in southeastern Oregon..............June 24, 2000. Note the large leafy bracts below each branch of the panicle.
- -Additional close-up photos of mountain sorrel as seen at Summit Prairie, Malheur National Forest...........June 26, 2011.
Mountain sorrel as seen in grasslands along the summit ridge between the East Rim Viewpoint and the Steens Mountain summit, Harney County, Oregon................September 1, 2011.