Burke: Micranthes lyallii vs. Micranthes fragosa

	Micranthes lyallii	Micranthes fragosa
	Lyall's saxifrage, red-stemmed saxifrage	Clayton's saxifrage
Habit	Perennial with well-developed rhizomes, often forming small mats.	Scapose, herbaceous perennials from rhizomes, often mat-forming.
Leaves	Leaves all basal, the leaves wedge-shaped to fan-shaped, 10-25 mm. long and nearly as broad, coarsely dentate with 7-9 teeth, with slender petioles of similar length, glabrous or with a few soft, brown hairs.	Leaves all basal, petiolate, the petioles flattened, 4-10 cm. long; blades broadly ovate to deltate, 4-10 cm. long, fleshy, the base tapered, the margins entire, hairy, the surfaces nearly glabrous.
Flowers	Inflorescence, calyx and fruits often bright red; inflorescence a cyme with up to 15 flowers, the peduncles slender, often with linear, entire bracts; calyx lobed almost to the base, the 5 lobes oblong-lanceolate, 2-3 mm. long, sharply reflexed; petals 5, white, aging to pink, 2.5-4 mm. long, the blade oblong-oval, rounded to a short, broad claw; stamens 10, equaling the petals, the filaments white, club-shaped; carpels often 3-5, fused only 0.5-1 mm., the ovary mostly superior, the carpels tapered to styles less than 1 mm. long.	Inflorescence an elongate, conic, open, compound panicle with 30 or more flowers, 20-50 cm. long, with purple-tipped, stalked glands; sepals 5, spreading, ovate to deltate; petals 5, white, not spotted, clawed, 2-3 mm. longer than the sepals; stamens 10, the filaments linear and flattened; pistils 2, fused half their length.
Fruits	Follicle 7-12 mm. long exclusive of the slender, divergent, stylar beaks.	Capsules green or reddish-purple.

	Micranthes lyallii	Micranthes fragosa
Flowering time	July-September	April-June
Habitat	Wet, gravelly meadows and along streams and ponds at high elevations.	Wet slopes and cliffs, often near watercourses.
Distribution	Occurring on both sides of the Cascades crest in northern Washington; Alaska to Washington, east to Alberta, Idaho, and Montana. [WildflowerSearch map] [BONAP county map]	East of Cascades in Washington, south to Oregon and east to Idaho. [WildflowerSearch map] [BONAP county map]
Origin	Native	Native
Conservation status	Not of concern	Not of concern
Sibling taxa	M. apetala, M. ferruginea, M. fragosa, M. gormanii, M. idahoensis, M. integrifolia, M. nelsoniana, M. nidifica, M. occidentalis, M. odontoloma, M. oregana, M. rufidula, M. tischii, M. tolmiei	M. apetala, M. ferruginea, M. gormanii, M. idahoensis, M. integrifolia, M. lyallii, M. nelsoniana, M. nidifica, M. occidentalis, M. odontoloma, M. oregana, M. rufidula, M. tischii, M. tolmiei
Web links	Local floras: BC, WA Local Web sites: Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	Local floras: CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Micranthes fragosa

Lyall's saxifrage, red-stemmed saxifrage

Clayton's saxifrage

Habit

Perennial with well-developed rhizomes, often forming small mats.

Scapose, herbaceous perennials from rhizomes, often mat-forming.

Leaves

Leaves all basal, the leaves wedge-shaped to fan-shaped, 10-25 mm. long and nearly as broad, coarsely dentate with 7-9 teeth, with slender petioles of similar length, glabrous or with a few soft, brown hairs.

Leaves all basal, petiolate, the petioles flattened, 4-10 cm. long;

blades broadly ovate to deltate, 4-10 cm. long, fleshy, the base tapered, the margins entire, hairy, the surfaces nearly glabrous.

Flowers

Inflorescence, calyx and fruits often bright red; inflorescence a cyme with up to 15 flowers, the peduncles slender, often with linear, entire bracts;

calyx lobed almost to the base, the 5 lobes oblong-lanceolate, 2-3 mm. long, sharply reflexed;

petals 5, white, aging to pink, 2.5-4 mm. long, the blade oblong-oval, rounded to a short, broad claw;

stamens 10, equaling the petals, the filaments white, club-shaped;

carpels often 3-5, fused only 0.5-1 mm., the ovary mostly superior, the carpels tapered to styles less than 1 mm. long.

Inflorescence an elongate, conic, open, compound panicle with 30 or more flowers, 20-50 cm. long, with purple-tipped, stalked glands;

sepals 5, spreading, ovate to deltate;

petals 5, white, not spotted, clawed, 2-3 mm. longer than the sepals;

stamens 10, the filaments linear and flattened;

pistils 2, fused half their length.

Fruits

Follicle 7-12 mm. long exclusive of the slender, divergent, stylar beaks.

Capsules green or reddish-purple.