Flora of North America species comparison

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Micranthes reflexa

Yukon saxifrage
Habit Plants solitary or tufted, with bulbils on caudices.
Leaves

basal;

petiole broadly flattened, 1–2 cm;

blade elliptic to broadly ovate, 1–3 cm, fleshy, base attenuate, margins shallowly serrate (teeth to 1 mm), densely ciliate, surfaces tangled reddish brown-hairy.
Inflorescences

15+-flowered thyrses with flowers crowded at branch tips, 7–60 cm, ± hairy, also with some purple-tipped glandular hairs.
Flowers

sepals reflexed, ovate to triangular;

petals white, with 2 basal yellow spots (spots distinct even in dried material), elliptic to spatulate, clawed, 2–4 mm, longer than sepals;

filaments strongly club-shaped, (longer than petals);

pistils distinct almost to base;

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

green to purplish, folliclelike.
2n

= 20, 40.

Micranthes reflexa
Phenology Flowering late spring–summer.
Habitat Heath, tundra, dry to mesic meadows, alpine gravelly slopes and fellfields, open woods
Elevation 0-1800 m (0-5900 ft)
Distribution
from FNA
AK; BC; NT; YT
[BONAP county map]
Discussion

Micranthes idahoensis, M. marshallii, and M. reflexa form a morphological complex of ecologically and geographically distinct entities in western North America that is much in need of study. The eastern North American M. careyana and M. caroliniana are also morphologically similar to the members of this complex.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 8, p. 63.
Parent taxa Saxifragaceae > Micranthes
Sibling taxa
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. 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 reflexa
Name authority (Hooker) Small: in N. L. Britton et al., N. Amer. Fl. 22: 146. (1905)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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