Sedum spathulifolium |
Sedum leibergii |
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broad-leaf stonecrop, Pacific stonecrop, spatula-leaf stonecrop |
Leiberg stonecrop, Leiberg's stonecrop |
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Habit | Herbs, perennial, mat-forming, glabrous. | Herbs, biennial, erect, glabrous. | ||||
Stems | rhizomatous, procumbent or creeping, much-branched, bearing terminal rosettes. |
rootstocks, horizontal, simple, bearing basal rosettes (axillary shoots with subterranean, white stems that detach easily and bear terminal rosettes of colorless leaves). |
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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, simple, (5–)11(–18) cm; leaf blades ovate or elliptic, 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, spreading, outermost ones petiolate (petiole 4–5 mm); blade green or greenish white, not glaucous, oblanceolate, obovate, or narrowly spatulate, laminar, 2–16 × 1.4–3.2 mm, base not spurred, not scarious, apex blunt, (surfaces papillose). |
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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. |
cymes, 5–60-flowered, 3–6-branched; branches often strongly recurved, each 1 or 2 times dichotomously forked; bracts similar to leaves, smaller. |
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Pedicels | 2–8 mm. |
to 0.3 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–)6(–7)-merous; sepals erect, slightly connate basally, green, ovate, equal, 1.5–2 × 0.7–1.1 mm, apex acute; petals spreading, distinct nearly to base, canary yellow, keel green or dark red, lanceolate to oblong, carinate, 4–6 mm, apex subobtuse to acute; filaments yellow; anthers yellow; nectar scales deep yellow, subquadrate. |
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Carpels | divergent in fruit, connate basally, brown. |
stellately spreading in fruit, connate basally, brown. |
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2n | = 30. |
= 16. |
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Sedum spathulifolium |
Sedum leibergii |
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Phenology | Flowering spring–summer. | |||||
Habitat | Open or largely bare areas, basalt or limestone, rocky hillsides, cliffs | |||||
Elevation | 50-1200 m (200-3900 ft) | |||||
Distribution |
CA; OR; WA; BC
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ID; OR; WA
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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.) |
Variation in the number of floral parts of Sedum leibergii (5–7-merous) is unique in North American sedums. It has tiny rosettes of lax, long-spatulate basal leaves that mostly have shriveled by anthesis. Sedum borschii, which is often confused with S. leibergii, has primary rosettes, prominent at anthesis, that have obovate or elliptic leaves. (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. 209. | ||||
Parent taxa | Crassulaceae > Sedum | Crassulaceae > Sedum | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | S. divaricatum, Amerosedum leibergii | |||||
Name authority | Hooker: Fl. Bor.-Amer. 1: 227. (1832) | Britton: in N. L. Britton et al., N. Amer. Fl. 22: 73. (1905) | ||||
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