Burke: Lewisia rediviva vs. Lewisia triphylla

	Lewisia rediviva	Lewisia triphylla
	bitterroot	three leaf bitterroot, three leaf lewisia
Habit		Succulent perennial from a shallow, ovoid, tuberous root 3-9 mm. long and nearly as thick, the flowering stems 1-several, 3-10 cm. long, filiform below ground.
Leaves		Basal leaves narrowly linear, up to 5 cm. long, lacking on flowering plants; cauline leaves 2-3, whorled, attached just above ground level, linear, 1-4.5 cm. long.
Flowers		Flowers 2-25 in a bracteate, simple or compound, panicle-like inflorescence, each flower often with bracts similar to the calyx and immediately subtending it; pedicels 5-15 mm. long; sepals 2, oval, rounded, 2-3 mm. long; petals 5-9, white with pink venation or pinkish, 4-7 mm. long; stamens usually 5; style short, with 3-5 elongate stigmas.
Fruits		Capsule about equal to the sepals.

	Lewisia rediviva	Lewisia triphylla
Flowering time	April-June	May-August
Habitat	Open gravelly and rocky areas from sagebrush plains to moderate elevations in the mountains.	Open, usually sandy areas where vernally moist, ponderosa pine forests to subalpine meadows.
Distribution	Occurring east of the Cascades crest in Washington; southern British Columbia to California, east to Montana, Wyoming, Utah, Colorado, and Arizona. [WildflowerSearch map] [BONAP county map]	Occurring chiefly east of the Cascades crest in Washington; Washington to California, east to Montana and south in the Rocky Mountains. [WildflowerSearch map] [BONAP county map]
Origin	Native	Native
Conservation status	Not of concern	Not of concern
Sibling taxa	L. columbiana, L. cotyledon, L. nevadensis, L. pygmaea, L. triphylla	L. columbiana, L. cotyledon, L. nevadensis, L. pygmaea, L. rediviva
Subordinate taxa	L. rediviva var. rediviva
Web links	Local floras: BC, CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria, Turner Photog. WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	Local floras: BC, CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria, Turner Photog. WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Lewisia rediviva

Lewisia triphylla

bitterroot

three leaf bitterroot, three leaf lewisia

Habit

Succulent perennial from a shallow, ovoid, tuberous root 3-9 mm. long and nearly as thick, the flowering stems 1-several, 3-10 cm. long, filiform below ground.

Leaves

Basal leaves narrowly linear, up to 5 cm. long, lacking on flowering plants;

cauline leaves 2-3, whorled, attached just above ground level, linear, 1-4.5 cm. long.

Flowers

Flowers 2-25 in a bracteate, simple or compound, panicle-like inflorescence, each flower often with bracts similar to the calyx and immediately subtending it;

pedicels 5-15 mm. long;

sepals 2, oval, rounded, 2-3 mm. long;

petals 5-9, white with pink venation or pinkish, 4-7 mm. long;

stamens usually 5;

style short, with 3-5 elongate stigmas.

Fruits

Capsule about equal to the sepals.