Burke: Sedum stenopetalum vs. Sedum rupicola

	Sedum stenopetalum	Sedum rupicola
	wormleaf stonecrop	lance-leaved stonecrop
Habit	Glabrous perennial herbs from rhizomes, with numerous sterile shoots, the flowering stems erect to ascending, up to 2 dm. tall.	Glabrous perennial from rhizomes, with numerous sterile shoots and basal rosettes, the flowering stems 5-20 cm. tall.
Leaves	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.	Leaves alternate, ovoid to ellipsoid, slightly flattened, 4-9 mm. long, incurved, mostly deciduous by flowering time.
Flowers	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.	Flowers mostly in compact cymes; sepals 5, triangular-lanceolate, 2-3.5 mm. long; petals 5, yellow, distinct, lanceolate and pointed, 6-7 mm. long; stamens 10, spreading, about 2 mm. shorter than the petals, 5 attached to the base of the petals.
Fruits	Follicles 5, widely divergent.	Follicles 5, erect, united at the base, each with a small gland at the base, and tipped by the erect or divergent, tapered style.

	Sedum stenopetalum	Sedum rupicola
Flowering time	May-July	June-August
Habitat	Grasslands and ponderosa pine forests to sub-alpine ridges, on dry, gravelly benches, rock crevices and talus.	Open, exposed places, usually on rocks or in gravelly soil, at moderate elevations in the mountains.
Distribution	Occurring chiefly east of the Cascade crest in Washington; British Columbia to California, east to the northern Rocky Mountains. [WildflowerSearch map] [BONAP county map]	Occurring east of the Cascades crest in Washington; Washington east to Idaho. [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. lanceolatum, S. leibergii, S. oreganum, S. rupicola, S. spathulifolium, S. thartii	S. acre, S. album, S. brevifolium, S. divergens, S. forsterianum, S. lanceolatum, S. leibergii, S. oreganum, S. spathulifolium, S. stenopetalum, 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: OR, 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

Sedum rupicola

wormleaf stonecrop

lance-leaved stonecrop

Habit

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

Glabrous perennial from rhizomes, with numerous sterile shoots and basal rosettes, the flowering stems 5-20 cm. tall.

Leaves

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.

Leaves alternate, ovoid to ellipsoid, slightly flattened, 4-9 mm. long, incurved, mostly deciduous by flowering time.

Flowers

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.

Flowers mostly in compact cymes;

sepals 5, triangular-lanceolate, 2-3.5 mm. long;

petals 5, yellow, distinct, lanceolate and pointed, 6-7 mm. long;

stamens 10, spreading, about 2 mm. shorter than the petals, 5 attached to the base of the petals.

Fruits

Follicles 5, widely divergent.

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