Burke: Sedum lanceolatum vs. Sedum stenopetalum

	Sedum lanceolatum	Sedum stenopetalum
	lance-leaved stonecrop	wormleaf stonecrop
Habit	Carpels 5, erect, distinct, the styles very short, divergent.	Glabrous perennial herbs from rhizomes, with numerous sterile shoots, the flowering stems erect to ascending, up to 2 dm. tall.
Leaves	Leaves alternate, linear-lanceolate and terete to ovate and somewhat flattened, not keeled, 5-20 mm. long, mostly deciduous by flowering time.	Leaves alternate, linear or narrowly linear-lanceolate, keeled or nerved, narrowly tapered to a sharp tip, 5-15 mm. long, deciduous by flowering, except the decumbent branches have many leaves persistent, sometimes only the mid-ribs remaining; upper cauline leaves sometimes persistent and bearing bulblet-like structures.
Flowers	Follicles 5, erect, united at the base, each with a small gland at the base, and tipped by the erect or divergent, tapered style.	Flowers in compact cymes; sepals 5, lanceolate, 2 mm. long; petals 5, yellow, 6-8 mm. long, spreading, lanceolate, acuminate and ending in a sharp point; stamens 10, 1.5-2.5 mm. shorter than the petals, 5 attached to the base of the petals. Occasionally some or all of the flowers are reduced to bulblets.
Fruits	Erect follicles.	Follicles 5, widely divergent.

	Sedum lanceolatum	Sedum stenopetalum
Identification notes	Leaves of flower stems are alternate, terete and not strongly incurved.
Flowering time	May-August	May-July
Habitat	On rocks or gravel in open, dry areas, from sea level to the alpine.	Grasslands and ponderosa pine forests to sub-alpine ridges, on dry, gravelly benches, rock crevices and talus.
Distribution	Widely distributed on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains and northern Great Plains in the U.S. and Canada. [WildflowerSearch map] [BONAP county map]	Occurring chiefly east of the Cascade crest in Washington; British Columbia to California, east to the northern Rocky Mountains. [WildflowerSearch map] [BONAP county map]
Origin	Native	Native
Conservation status	Not of concern	Not of concern
Sibling taxa	S. acre, S. album, S. brevifolium, S. divergens, S. forsterianum, S. leibergii, S. oreganum, S. rupicola, S. spathulifolium, S. stenopetalum, S. thartii	S. acre, S. album, S. brevifolium, S. divergens, S. forsterianum, S. lanceolatum, S. leibergii, S. oreganum, S. rupicola, S. spathulifolium, S. thartii
Subordinate taxa		S. stenopetalum ssp. stenopetalum
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

Sedum stenopetalum

lance-leaved stonecrop

wormleaf stonecrop

Habit

Carpels 5, erect, distinct, the styles very short, divergent.

Glabrous perennial herbs from rhizomes, with numerous sterile shoots, the flowering stems erect to ascending, up to 2 dm. tall.

Leaves

Leaves alternate, linear-lanceolate and terete to ovate and somewhat flattened, not keeled, 5-20 mm. long, mostly deciduous by flowering time.

Leaves alternate, linear or narrowly linear-lanceolate, keeled or nerved, narrowly tapered to a sharp tip, 5-15 mm. long, deciduous by flowering, except the decumbent branches have many leaves persistent, sometimes only the mid-ribs remaining; upper cauline leaves sometimes persistent and bearing bulblet-like structures.

Flowers

Follicles 5, erect, united at the base, each with a small gland at the base, and tipped by the erect or divergent, tapered style.

Flowers in compact cymes;

sepals 5, lanceolate, 2 mm. long;

petals 5, yellow, 6-8 mm. long, spreading, lanceolate, acuminate and ending in a sharp point;

stamens 10, 1.5-2.5 mm. shorter than the petals, 5 attached to the base of the petals. Occasionally some or all of the flowers are reduced to bulblets.

Fruits

Erect follicles.

Follicles 5, widely divergent.

Sedum lanceolatum

Sedum stenopetalum

Identification notes

Leaves of flower stems are alternate, terete and not strongly incurved.

Flowering time

May-August

May-July

Habitat

On rocks or gravel in open, dry areas, from sea level to the alpine.

Grasslands and ponderosa pine forests to sub-alpine ridges, on dry, gravelly benches, rock crevices and talus.

Distribution

Widely distributed on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains and northern Great Plains in the U.S. and Canada.

[WildflowerSearch map]

[BONAP county map]