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redfuzz saxifrage

rusty-hair saxifrage

Habit Plants solitary or in groups, with bulbils on caudices. Plants solitary or in groups, with bulbils on caudices, or rhizomatous.
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.

basal;

petiole flattened, 4–8 cm;

blade ovate to elliptic, 1–4 cm, fleshy, base attenuate to ± truncate, margins serrate (15–30- toothed), eciliate, 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.

15+-flowered, open, flat-topped thyrses, 5–20 cm, purple-tipped stipitate-glandular; (bracts often tangled brown-hairy).

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.

sepals spreading, ovate, (often tangled brown-hairy);

petals white, not spotted, ovate to elliptic, clawed, 2–4 mm, longer than sepals;

filaments linear, flattened to slightly club-shaped;

pistils distinct almost to base;

ovary superior, (to 1/3 adnate to hypanthium).

Capsules

purplish, valvate.

greenish to reddish purple, folliclelike.

2n

= 20, 38, 56, 58.

Micranthes eriophora

Micranthes rufidula

Phenology Flowering late winter–early summer. Flowering late winter–summer.
Habitat Rocky slopes and ledges Wet to dry, rocky ledges
Elevation 1900-3000 m (6200-9800 ft) 0-3000 m (0-9800 ft)
Distribution
from FNA
AZ; NM; Mexico (Baja California, Chihuahua)
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; OR; WA; BC
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 8, p. 64. FNA vol. 8, p. 62.
Parent taxa Saxifragaceae > Micranthes Saxifragaceae > Micranthes
Sibling taxa
M. apetala, M. aprica, M. bryophora, M. californica, M. calycina, M. careyana, M. caroliniana, M. ferruginea, M. foliolosa, M. fragosa, M. gaspensis, M. gormanii, M. hieraciifolia, M. hitchcockiana, M. howellii, M. idahoensis, M. integrifolia, M. lyallii, M. marshallii, M. micranthidifolia, M. nelsoniana, M. nidifica, M. nivalis, M. nudicaulis, M. occidentalis, M. odontoloma, M. oregana, M. palmeri, M. pensylvanica, M. petiolaris, M. razshivinii, M. reflexa, M. rhomboidea, M. rufidula, M. spicata, M. stellaris, M. subapetala, M. tempestiva, M. tenuis, M. texana, M. tischii, M. tolmiei, M. unalaschcensis, M. virginiensis
M. apetala, M. aprica, M. bryophora, M. californica, M. calycina, M. careyana, M. caroliniana, M. eriophora, M. ferruginea, M. foliolosa, M. fragosa, M. gaspensis, M. gormanii, M. hieraciifolia, M. hitchcockiana, M. howellii, M. idahoensis, M. integrifolia, M. lyallii, M. marshallii, M. micranthidifolia, M. nelsoniana, M. nidifica, M. nivalis, M. nudicaulis, M. occidentalis, M. odontoloma, M. oregana, M. palmeri, M. pensylvanica, M. petiolaris, M. razshivinii, M. reflexa, M. rhomboidea, M. spicata, M. stellaris, M. subapetala, M. tempestiva, M. tenuis, M. texana, M. tischii, M. tolmiei, M. unalaschcensis, M. virginiensis
Synonyms Saxifraga eriophora Saxifraga aequidentata, Saxifraga occidentalis subsp. rufidula, Saxifraga occidentalis var. rufidula, Saxifraga rufidula
Name authority (S. Watson) Small: in N. L. Britton et al., N. Amer. Fl. 22: 142. (1905) Small: in N. L. Britton et al., N. Amer. Fl. 22: 140. (1905)
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