Burke: Stellaria obtusa vs. Stellaria longipes

	Stellaria obtusa	Stellaria longipes
	blunt-sepaled starwort	longstalk starwort
Habit		Variable, low perennial from slender rhizomes, the stems glabrous, often matted, 4-angled, 5-30 cm. long.
Leaves		Leaves opposite, sessile, stiff, glaucous, 1-3 cm. long and 1-3 mm. broad, linear to linear-lanceolate, usually glabrous.
Flowers		Flowers single to several in an open inflorescence, the pedicels erect, slender, up to 8 cm. long; sepals 5, lanceolate, scarious-margined, about 4 mm. long, glabrous, 3-nerved; petals 5, white, slightly longer than the sepals.
Fruits		Capsule ovoid, purplish, somewhat longer than the calyx.

	Stellaria obtusa	Stellaria longipes
Flowering time	June-July	May-August
Habitat	Moist forest and riparian zone understory, talus slopes, from low to moderate elevations.	Moist streambanks and rocky slopes at mid-elevations in the mountains.
Distribution	Occurring on both sides of the Cascades in Washington; British Columbia to California, east to the Rocky Mountains. [WildflowerSearch map] [BONAP county map]	Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across Canada and the northern Great Plains to eastern North America. [WildflowerSearch map] [BONAP county map]
Origin	Native	Native
Conservation status	Not of concern	Not of concern
Sibling taxa	S. alsine, S. borealis, S. calycantha, S. crispa, S. graminea, S. humifusa, S. longifolia, S. longipes, S. media, S. neglecta, S. nitens, S. pallida, S. umbellata	S. alsine, S. borealis, S. calycantha, S. crispa, S. graminea, S. humifusa, S. longifolia, S. media, S. neglecta, S. nitens, S. obtusa, S. pallida, S. umbellata
Subordinate taxa		S. longipes ssp. longipes
Web links	Local floras: BC, 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	Local floras: BC, OR, WA Local Web sites: 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

Stellaria obtusa

Stellaria longipes

blunt-sepaled starwort

longstalk starwort

Habit

Variable, low perennial from slender rhizomes, the stems glabrous, often matted, 4-angled, 5-30 cm. long.

Leaves

Leaves opposite, sessile, stiff, glaucous, 1-3 cm. long and 1-3 mm. broad, linear to linear-lanceolate, usually glabrous.

Flowers

Flowers single to several in an open inflorescence, the pedicels erect, slender, up to 8 cm. long;

sepals 5, lanceolate, scarious-margined, about 4 mm. long, glabrous, 3-nerved;

petals 5, white, slightly longer than the sepals.

Fruits

Capsule ovoid, purplish, somewhat longer than the calyx.

Stellaria obtusa

Stellaria longipes

Flowering time

June-July

May-August

Habitat

Moist forest and riparian zone understory, talus slopes, from low to moderate elevations.

Moist streambanks and rocky slopes at mid-elevations in the mountains.

Distribution

Occurring on both sides of the Cascades in Washington; British Columbia to California, east to the Rocky Mountains.

[WildflowerSearch map]

[BONAP county map]

Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across Canada and the northern Great Plains to eastern North America.

[WildflowerSearch map]

[BONAP county map]

Origin

Native

Conservation status

Not of concern

Sibling taxa