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redfuzz saxifrage

Habit Plants solitary or in groups, with bulbils on caudices. Plants solitary or in clusters, stoloniferous, 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 rounded, 0.5–3.5 cm, (base expanded, stipulelike);

blade somewhat reniform, (± evenly lobed), 0.5–2.5 cm, ± fleshy, base cordate to truncate, margins entire, sparsely glandular-ciliate, surfaces glabrous.

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.

5–20-flowered, branched cymes or flat-topped thyrses, 5–16 cm, sparsely purple-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.

sepals reflexed or, sometimes, spreading, triangular;

petals white to cream (rarely pink), not spotted, broadly elliptic to ovate, short-clawed, 4–5 mm, longer than sepals;

filaments linear, flattened;

pistils connate 1/2+ their lengths;

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

Capsules

purplish, valvate.

dark purple-black, valvate.

2n

= 40.

Micranthes eriophora

Micranthes nudicaulis

Phenology Flowering late winter–early summer. Flowering summer.
Habitat Rocky slopes and ledges Wet flushes, stream banks
Elevation 1900-3000 m (6200-9800 ft) 0-800 m (0-2600 ft)
Distribution
from FNA
AZ; NM; Mexico (Baja California, Chihuahua)
[WildflowerSearch map]
[BONAP county map]
from FNA
AK; e Asia (Russian Far East)
[BONAP county map]
Source FNA vol. 8, p. 64. FNA vol. 8, p. 59.
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. 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
Synonyms Saxifraga eriophora Saxifraga nudicaulis
Name authority (S. Watson) Small: in N. L. Britton et al., N. Amer. Fl. 22: 142. (1905) (D. Don) Gornall & H. Ohba: J. Bot. Res. Inst. Texas 1: 1021. (2007)
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