Sedum lanceolatum |
Sedum nevii |
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lance-leaf stonecrop, spear-leaf stonecrop |
Nevius' stonecrop |
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Habit | Herbs, perennial, tufted, glabrous. | Herbs, perennial, tufted, glabrous. | ||||
Stems | rootstocks, decumbent and ascending, branched, (sometimes papillose), bearing terminal rosettes and above ground shoots. |
decumbent, branched, bearing terminal rosettes (primary rosettes usually 1 cm diam.). |
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Flowering shoots | erect, simple or branched, 3–18 cm; leaf blades elliptic-lanceolate, base short-spurred; offsets not formed. |
erect or pendent, simple, 6–8.5 cm; leaf blades narrowly elliptic or linear, (8.5–18 × 0.7–5.4 mm), base short-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, petiolate; blade green or grayish green, not glaucous, narrowly rhombic-elliptic, oblanceolate, or spatulate, sub-terete, 6–11 × 2.5–3.2 mm, base with simple, short spur, not scarious, apex rounded, (surfaces papillose marginally). |
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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, 5–30-flowered, 3-branched; branches not recurved, sometimes dichotomously forked; bracts similar to leaves, smaller. |
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Pedicels | absent or to 3 mm. |
absent or to 0.5 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. |
4-merous; sepals spreading, slightly connate basally, green, linear or linear-lanceolate, unequal, 3–8.5 × 0.5–2 mm, apex obtuse; petals spreading, distinct, white, lanceolate, carinate, 3.5–7 mm, apex acute; filaments white; anthers red; nectar scales white, subquadrate or square. |
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Carpels | erect in fruit, basally connate, brown. |
stellate in fruit, distinct, brown. |
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2n | = 16. |
= 12. |
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Sedum lanceolatum |
Sedum nevii |
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Phenology | Flowering spring. | |||||
Habitat | On living mats of mosses and lichens on rocks of quartzite and gneiss, crevices and ledges of cliffs, sometimes talus | |||||
Elevation | 1000 m (3300 ft) | |||||
Distribution |
AK; AZ; CA; CO; ID; MT; NE; NM; NV; OR; SD; UT; WA; WY; AB; BC; SK; YT
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AL; GA; TN |
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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.) |
Sedum nevii has conspicuous lips along the adaxial suture of mature follicles. R. T. Clausen (1975) considered it to be closely related to S. glaucophyllum and possibly conspecific with it; S. nevii has narrower leaves and is not glaucous. Flavonoid chemistry and seed coat morphology support recognizing S. nevii and S. glaucophyllum as separate species (P. J. Calie 1981). (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. 203. | ||||
Parent taxa | Crassulaceae > Sedum | Crassulaceae > Sedum | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Name authority | Torrey: Ann. Lyceum Nat. Hist. New York 2: 205. (1827) | A. Gray: Mem. Amer. Acad. Arts, n. s. 6: 373. (1858) | ||||
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