OregonFlora: Sedum lanceolatum vs. Sedum leibergii

	Sedum lanceolatum	Sedum leibergii
	spearleaf stonecrop	Leiberg's stonecrop
Habit		Plants biennial, glabrous.
Stems		horizontal; simple.
Flowering shoots		erect; simple; (5)11–18 cm; stem leaves alternate, not producing leafy bulbils in axils; ovate or elliptic; widest below middle, bases not spurred.
Leaves		rosette leaves deciduous, spreading, narrowly oblanceolate, 2–16 × 1.4–3.2 mm, green or greenish white, bases not spurred; tips blunt; surfaces papillose, not glaucous.
Inflorescences		cymes with 5–60 flowers, 3–6-branched; branches often strongly recurved; each 1–3 times dichotomously forked; bracts like stem leaves but smaller.
Flowers		(5)6(7)-parted; sepals ovate, 1.5–2 × 0.7–1.1 mm, green; tips acute; petals spreading, separate nearly to base, lanceolate to oblong, 4–6 mm, yellow; keel green or dark red; tips subobtuse to acute; filaments yellow; anthers yellow; ovaries glandular-pustulose.
Fruits		widely spreading when mature, fused near base, glandular-pustulose.
2n		=16.

	Sedum lanceolatum	Sedum leibergii
Distribution	[WildflowerSearch map] [BONAP county map]	[WildflowerSearch map] [BONAP county map]
Discussion		Cliffs, rocky slopes, on basalt or limestone. Flowering Apr–Jul. 50–1800 m. BW, Col, ECas, Lava, Owy. ID, WA. Native. Sedum leibergii is a small, yellow-flowered Sedum like S. lanceolatum, S. radiatum, or S. stenopetalum. Unlike those species, S. leibergii has distinctly glandular-pustulose follicles. Additionally, S. leibergii does not produce offsets in the axils of stem leaves like S. stenopetalum.
Source		Flora of Oregon, volume 2, page 603 Barbara Wilson, Richard Brainerd, Nick Otting
Sibling taxa	S. acre, S. album, S. debile, S. divergens, S. laxum, S. leibergii, S. moranii, S. oblanceolatum, S. oreganum, S. oregonense, S. radiatum, S. spathulifolium, S. stenopetalum, S. thartii	S. acre, S. album, S. debile, S. divergens, S. lanceolatum, S. laxum, S. moranii, S. oblanceolatum, S. oreganum, S. oregonense, S. radiatum, S. spathulifolium, S. stenopetalum, S. thartii
Subordinate taxa	S. lanceolatum var. lanceolatum
Synonyms	Sedum lanceolatum var. rupicola, Sedum rupicola	Sedum borschii
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 leibergii

spearleaf stonecrop

Leiberg's stonecrop

Habit

Plants biennial, glabrous.

Stems

horizontal; simple.

Flowering shoots

erect; simple; (5)11–18 cm;

stem leaves alternate, not producing leafy bulbils in axils; ovate or elliptic; widest below middle, bases not spurred.

Leaves

rosette leaves deciduous, spreading, narrowly oblanceolate, 2–16 × 1.4–3.2 mm, green or greenish white, bases not spurred;

tips blunt;

surfaces papillose, not glaucous.

Inflorescences

cymes with 5–60 flowers, 3–6-branched;

branches often strongly recurved; each 1–3 times dichotomously forked;

bracts like stem leaves but smaller.

Flowers

(5)6(7)-parted;

sepals ovate, 1.5–2 × 0.7–1.1 mm, green;

tips acute;

petals spreading, separate nearly to base, lanceolate to oblong, 4–6 mm, yellow;

keel green or dark red;

tips subobtuse to acute;

filaments yellow;

anthers yellow;

ovaries glandular-pustulose.

Fruits

widely spreading when mature, fused near base, glandular-pustulose.

=16.

Sedum leibergii

Distribution

[WildflowerSearch map]

[BONAP county map]

[WildflowerSearch map]

[BONAP county map]

Discussion

Cliffs, rocky slopes, on basalt or limestone. Flowering Apr–Jul. 50–1800 m. BW, Col, ECas, Lava, Owy. ID, WA. Native.

Sedum leibergii is a small, yellow-flowered Sedum like S. lanceolatum, S. radiatum, or S. stenopetalum. Unlike those species, S. leibergii has distinctly glandular-pustulose follicles. Additionally, S. leibergii does not produce offsets in the axils of stem leaves like S. stenopetalum.