Sedum lanceolatum

Illustrator: Yevonn Wilson-Ramsey

Copyright: Flora of North America Association

Herbs, perennial, tufted, glabrous. Stems rootstocks, decumbent and ascending, branched, (sometimes papillose), bearing terminal rosettes and above ground shoots. Leaves (not easily detached), alternate, spreading-erect to erect or ascending, sessile; blade dull gray-green or bluish green, green, or reddish green, often glaucous, lanceolate, elliptic-lanceolate, or elliptic-ovate, subterete, 4.2–13 × 1.5–3.5 mm, base very short-spurred, base of withered blade at times becoming scarious, apex obtuse or obtusely apiculate, (surfaces papillose). Flowering shoots erect, simple or branched, 3–18 cm; leaf blades elliptic-lanceolate, base short-spurred; offsets not formed. Inflorescences cymes, 5–25-flowered, (1–)3(–6)-branched; branches ascending, spreading to erect, or recurved, forked; bracts similar to leaves. Pedicels absent or to 3 mm. Flowers 5-merous; sepals erect, connate basally, pale green to yellow-green, ovate or lanceolate, equal, 2–5 × 1–2 mm, apex acute or, rarely, obtuse, (often papillose); petals widely spreading from suberect base, distinct, canary to golden yellow, lanceolate, elliptic-lanceolate, or linear-lanceolate, canaliculate, 6–9.2 mm, apex acute to acuminate with minute mucronate appendage; filaments yellow; anthers yellow, sometimes suffused with red; nectar scales deep yellow to yellow-green, obovately square. Carpels erect in fruit, basally connate, brown. 2n = 16.

Distribution

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• Legacy Map

w, wc North America.

Discussion

Varieties 2 (2 in the flora).

Sedum lanceolatum forms offsets in the axils of rosette leaves. The mature carpels have divergent beaks and narrow lips along the adaxial suture.

Selected References

None.

Lower Taxa

Sedum lanceolatum var. lanceolatum, Sedum lanceolatum var. nesioticum

Key

1	Rosette leaf blades 4.2-9 × 1.5-2.5 mm.	Sedum lanceolatum var. lanceolatum
1	Rosette leaf blades 8-13 × 3-3.5 mm.	Sedum lanceolatum var. nesioticum