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Leptarrhena pyrolifolia
(D. Don) R. Br. ex Ser.
Family:
Saxifragaceae
Pearleaf
[
Leptarrhena amplexifolia
(Sternb.) R. Br. ex Ser.]
FNA
Resources
Craig C. Freeman, Richard K. Rabeler in Flora of North America (vol. 8)
Leaf blades
dull, pale green abaxially, shiny, dark green adaxially, leathery, basal blade (1-)2.5-9.5 × (0.4-)1-4.5 cm.
Inflorescences
pedunculate, 1-12 cm, glandular to stipitate-glandular, proximal branches sometimes remote, especially in fruit; bracts sometimes subtending pedicels, scalelike.
Flowers
: hypanthium shallowly campanulate, 0.3-0.6 × 1.2-1.8 mm, glandular to stipitate-glandular; sepals triangular to ovate, 0.8-1.5 × 0.7-1.1 mm, margins entire, apex rounded or retuse, glabrous or sparsely stipitate-glandular; petals narrowly spatulate or oblanceolate, 1-2.2 × 0.4-0.7 mm, margins entire; stamens exserted; filaments 0.8-1.5 mm; anthers 1-locular, round to transversely elliptic, 0.1-0.2 × 0.2-0.3 mm, dehiscent by broad, terminal openings; pistils 2-3 × 1-1.8 mm; styles slightly spreading, cylindric.
Capsules
erect, green, red, or purple, narrowly ovoid, tips divergent, 6-9 mm.
Seeds
80-120, 3.2-4.8 × 0.4-0.6 mm, ends tapered.
2
n
= 14.
Flowering Jun-Sep. Wet meadows, stream banks, bogs, seepage areas, wet cliffs and talus slopes, heathlands; 0-2300 m; Alta., B.C., N.W.T., Yukon; Alaska, Idaho, Mont., Oreg., Wash.
The Aleuts of Alaska use an infusion of
Leptarrhena pyrolifolia
leaves to treat influenza, and the Thompson Indians of British Columbia apply a poultice of chewed leaves to wounds (D. E. Moerman 1998).
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