Saxifraga rivularis L.
Family: Saxifragaceae
Alpine-Brook Saxifrage,  more...
Saxifraga rivularis image

Plant: perennial herb

Leaves: basal and cauline, reduced upwards; blades circular to broader than long, 0.4-1.5 cm long, the base usually cordate, the margin usually 3-5 lobed; petioles 0.5-3.5 cm long, flattened

INFLORESCENCE: 3-10 cm tall, very sparsely covered with pink to purple-tipped glandular hairs

Flowers: usually 1-3; sepals erect, elliptic-ovate; petals 2-6 mm long, longer than sepals, elliptic-obovate; filaments lanceolate; ovary more than half inferior in flower, appearing more superior in fruit; nectaries inconspicuous or 0

Fruit: FRUITS 2(-3) valved; SEEDS smooth to ridged

Misc: Moist crevices, shaded, rocky areas; above 3050 m (10000 ft); Jul-Aug

Notes: CAUDEX fragile; bulblets few

REFERENCES: Elvander, Patrick. 1992. Saxifragaceae. Ariz.-Nev. Acad. Sci. 26(1)2.

Rhizomatous; stems tufted, 2-10 cm; lower lvs long- petioled, the blade reniform in outline, 4-13 mm wide, 3-5(-7)-lobed; upper lvs on shorter petioles, smaller, less cleft or entire, without bulblets; fls 1-4, long-pediceled, white; pet 3-5 mm; 2n=26, 52, 56. Circumboreal, s. to e. Que., the White Mts., of N.H., and Mont. July.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

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