Micranthes eriophora Small (redirected from: Saxifraga eriophora)
Family: Saxifragaceae
[Saxifraga eriophora S. Wats.]
Micranthes eriophora image

Plants solitary or in groups, with bulbils on caudices. Leaves basal; petiole flattened, 0.5-2.5 cm; blade ovate to elliptic, 1-2 cm, ± fleshy, base attenuate, margins sharply serrate, sparsely to densely ciliate (some glandular-tipped), surfaces densely tangled, reddish brown-hairy abaxially, glabrous adaxially. Inflorescences 10+-flowered, (flowers often secund), very open, lax, often flat-topped thyrses with distant lateral branches, 6-25 cm, pink- to purplish-tipped stipitate-glandular. Flowers: sepals erect, triangular; petals white, sometimes purplish-tipped, not spotted, obovate to elliptic, not clawed or barely clawed, 4-7 mm, ca. 2 times as long as sepals; filaments linear, flattened; pistils distinct almost to base; ovary 1/3-1/2 inferior. Capsules purplish, valvate.

Flowering late winter-early summer. Rocky slopes and ledges; 1900-3000 m; Ariz., N.Mex.; Mexico (Baja California, Chihuahua).

Plant: perennial herb

Leaves: all basal, lower surface covered with brown, woolly hairs; blades ovate-elliptic, 1-3 cm long, the base attenuate, the margin serrate; petiole 0.6-2.5 cm long, flattened

INFLORESCENCE: 6-25 cm tall, usually much branched and open, covered with pink to purple-tipped glandular hairs

Flowers: more than 10; sepals erect, triangular, pink to reddish; petals 4-7 mm long, 2-3 times longer than sepals, oblanceolate-obovate, white to pink; filaments lanceolate, sometimes pink; anthers usually pink-purple; ovary more or less superior; nectaries ribbon-like

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

Misc: Wet banks and slopes; 1200-2700 m (4000-9000 ft); Mar-Jul

Notes: CAUDEX simple to branched; bulblets 0

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

JANAS 26(1), Kearney and Peebles 1969

Duration: Perennial

Nativity: Native

Lifeform: Forb/Herb

General: Herbaceous perennials, leafy or scapose, generally a basal rosette.

Leaves: Ovate-elliptic, with dentate margins, attenuate at the base, all basal, lanate beneath with long, reddish hairs, petioles ciliate also with reddish hairs.

Flowers: White to pink with 5 petals and 5 sepals, sepals erect, triangular, pink to red, born in lax, much-branched cymules with few flowers, covered with pink glandular hairs with purple tips, filaments pink, lanceolate, anthers pink to purple, stamens 10.

Fruits: Follicles beaked, divergent, with many seeds.

Ecology: Found on wet banks and slopes from 5,000-8,500 ft (1524-2591 m); flowering March-May.

Notes: This pretty little flower is notable for its strongly dentate, basal leaves, lax inflorescence with white or pink flowers, and the plant more or less covered with pink or red hairs.

Synonyms: None

Editor: LCrumbacher, 2011