Sedum spathulifolium |
Sedum laxum |
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broad-leaf stonecrop, Pacific stonecrop, spatula-leaf stonecrop |
rose-flower stonecrop |
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Habit | Herbs, perennial, mat-forming, glabrous. | Herbs, perennial, cespitose or not, glabrous. | ||||||||||||||||||||
Stems | rhizomatous, procumbent or creeping, much-branched, bearing terminal rosettes. |
root-stocks, ascending, much-branched, bearing rosettes. |
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Flowering shoots | erect, simple, 3–14 cm; leaf blades spatulate-oblong or elliptic-oblong, base not spurred; offsets not formed. |
erect or decumbent, simple or branched, 4–30(–40) cm; leaf blades oblanceolate, spatulate, obovate, or suborbiculate, base not spurred; offsets not formed. |
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Leaves | alternate, spreading, petiolate; blade green, often glaucous or pruinose, spatulate, terete to laminar, 7–19 × 4.5–10 mm, base not spurred, not scarious, apex rounded or truncate, submucronate, (surfaces papillose marginally). |
alternate, erect to spreading, sessile; blade green, glaucous or not, not pruinose, oblanceolate, spatulate, or obovate, subterete or somewhat flattened, 10–50 × (4.5–)6–33 mm, base not spurred, not scarious, apex truncate to rounded or obtuse, emarginate or barely notched. |
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Inflorescences | cymes, ca. 30-flowered, ca. 3-branched; branches not recurved, forked; bracts oblong-spatulate or linear, ca. 3 cm, base not spurred. |
elongate, paniculate cymes, 12–80-flowered, monochasially 3+-branched; branches not recurved, 2-forked; bracts similar to leaves, smaller. |
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Pedicels | 2–8 mm. |
0.6–6.3 mm. |
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Flowers | 5-merous; sepals spreading to erect, connate basally, green or yellow-green, glaucous or pruinose, lanceolate, linear-lanceolate, oblong-ovate, or obovate, equal, ca. 2.5 × 1.5 mm, apex acute or obtuse; petals widely spreading from short, erect base, distinct or slightly connate basally, yellow, linear to oblanceolate, not carinate, 4.5–9 mm, apex acute; filaments yellow; anthers yellow; nectar scales yellow, reniform or nearly square. |
5-merous; sepals erect, (closely appressed to corolla tube), slightly connate basally, pale green, ovate or lanceolate, equal, (2–)2.6–5.1 × 2 mm, apex acute or subacute, (rarely obtuse in var. flavidum); petals basally erect, divergent in distal 1/2, connate basally, pink, pinkish white, or white to yellowish white, lanceolate-oblong, oblanceolate-oblong, or elliptic-oblong, not carinate, 4–11 mm, apex obtuse, shortly mucronate or aristate; filaments white, greenish white, or pink; anthers red, reddish purple, red-brown, or yellow; nectar scales white, yellow, or pink, reniform or transversely oblong. |
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Carpels | divergent in fruit, connate basally, brown. |
erect in fruit, distinct, brown. |
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2n | = 30. |
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Sedum spathulifolium |
Sedum laxum |
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Distribution |
CA; OR; WA; BC
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CA; OR
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Discussion | Varieties 2 (2 in the flora). The mature carpels of Sedum spathulifolium have five ribs and prominent lips along the adaxial suture. The flowers are sweetly fragrant. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Varieties 5 (5 in the flora). Sedum laxum is unusual in forming offsets in axils of rosette leaves rather than on a rootstock or creeping stem. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 8, p. 222. | FNA vol. 8, p. 218. | ||||||||||||||||||||
Parent taxa | Crassulaceae > Sedum | Crassulaceae > Sedum | ||||||||||||||||||||
Sibling taxa | ||||||||||||||||||||||
Subordinate taxa | ||||||||||||||||||||||
Synonyms | Gormania laxa | |||||||||||||||||||||
Name authority | Hooker: Fl. Bor.-Amer. 1: 227. (1832) | (Britton) A. Berger: in H. G. A. Engler et al., Nat. Pflanzenfam. ed. 2, 18a: 451. (1930) | ||||||||||||||||||||
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