Sedum lanceolatum |
Sedum leibergii |
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lance-leaf stonecrop, spear-leaf stonecrop |
Leiberg stonecrop, Leiberg's stonecrop |
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Habit | Herbs, perennial, tufted, glabrous. | Herbs, biennial, erect, glabrous. | ||||
Stems | rootstocks, decumbent and ascending, branched, (sometimes papillose), bearing terminal rosettes and above ground shoots. |
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 or branched, 3–18 cm; leaf blades elliptic-lanceolate, base short-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 | (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). |
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, 5–25-flowered, (1–)3(–6)-branched; branches ascending, spreading to erect, or recurved, forked; bracts similar to leaves. |
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 | absent or to 3 mm. |
to 0.3 mm. |
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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. |
(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 | erect in fruit, basally connate, brown. |
stellately spreading in fruit, connate basally, brown. |
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2n | = 16. |
= 16. |
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Sedum lanceolatum |
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 |
AK; AZ; CA; CO; ID; MT; NE; NM; NV; OR; SD; UT; WA; WY; AB; BC; SK; YT
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ID; OR; WA
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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. (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. 206. | FNA vol. 8, p. 209. | ||||
Parent taxa | Crassulaceae > Sedum | Crassulaceae > Sedum | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | S. divaricatum, Amerosedum leibergii | |||||
Name authority | Torrey: Ann. Lyceum Nat. Hist. New York 2: 205. (1827) | Britton: in N. L. Britton et al., N. Amer. Fl. 22: 73. (1905) | ||||
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