Sedum oregonense |
Sedum lanceolatum |
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cream stonecrop, creamy stonecrop |
lance-leaf stonecrop, spear-leaf stonecrop |
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Habit | Herbs, perennial, cespitose or not, glabrous. | Herbs, perennial, tufted, glabrous. | ||||
Stems | rhizomes, horizontal, much-branched, bearing rosettes. |
rootstocks, decumbent and ascending, branched, (sometimes papillose), bearing terminal rosettes and above ground shoots. |
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Flowering shoots | erect, simple, (6–)10–28 cm; leaf blades suborbiculate or obovate, base not spurred; offsets not formed. |
erect, simple or branched, 3–18 cm; leaf blades elliptic-lanceolate, base short-spurred; offsets not formed. |
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Leaves | alternate, ascending to spreading, sessile to subsessile; blade green, glaucous, not strongly pruinose, obovate or oblanceolate, subterete, 10–36 × 5–16 mm, base not spurred, not scarious, apex emarginate to retuse. |
(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). |
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Inflorescences | panicles, 10–120-flowered, 3–20-branched; branches not recurved, dichotomously forked; bracts similar to leaves, smaller. |
cymes, 5–25-flowered, (1–)3(–6)-branched; branches ascending, spreading to erect, or recurved, forked; bracts similar to leaves. |
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Pedicels | 2–5 mm. |
absent or to 3 mm. |
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Flowers | 5-merous; sepals (persistent, closely appressed to corolla tube), erect, connate basally, greenish, ovate, equal, 3.2–3.5 × 1–3 mm, apex subacute; petals (persistent until fruiting), erect basally, divergent apically, connate basally, creamy white, yellowish white, or pale yellow, elliptic-oblong or oblanceolate-oblong, cucullate, 5–9(–11.5) mm, apex abruptly pointed; filaments pale yellow; anthers yellow; nectar scales white or yellow, subreniform. |
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. |
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Carpels | erect in fruit, distinct, brown, (strongly 5-veined). |
erect in fruit, basally connate, brown. |
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2n | = 90. |
= 16. |
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Sedum oregonense |
Sedum lanceolatum |
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Phenology | Flowering spring–summer. | |||||
Habitat | Gravel, mats of Selaginella or moss on rocky slopes and ledges, crevices of cliffs | |||||
Elevation | 900-2200 m (3000-7200 ft) | |||||
Distribution |
CA; OR
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AK; AZ; CA; CO; ID; MT; NE; NM; NV; OR; SD; UT; WA; WY; AB; BC; SK; YT
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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.) |
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Key |
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Source | FNA vol. 8, p. 220. | FNA vol. 8, p. 206. | ||||
Parent taxa | Crassulaceae > Sedum | Crassulaceae > Sedum | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | Cotyledon oregonensis | |||||
Name authority | (S. Watson) M. Peck: Man. Higher Pl. Oregon, 361. (1941) | Torrey: Ann. Lyceum Nat. Hist. New York 2: 205. (1827) | ||||
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