Sedum acre |
Sedum spathulifolium |
|||||
---|---|---|---|---|---|---|
goldmoss stonecrop, moss stonecrop, mossy stonecrop, orpin acre, orpin âcre, wall-pepper |
broad-leaf stonecrop, Pacific stonecrop, spatula-leaf stonecrop |
|||||
Habit | Herbs, perennial, mat-forming, glabrous. | Herbs, perennial, mat-forming, glabrous. | ||||
Stems | trailing (nonflowering shoots ascending at tip), laxly branched, not bearing rosettes. |
rhizomatous, procumbent or creeping, much-branched, bearing terminal rosettes. |
||||
Flowering shoots | erect, usually simple, 5–10(–15) cm; leaf blades triangular-ovate, base short-spurred; offsets not formed. |
erect, simple, 3–14 cm; leaf blades spatulate-oblong or elliptic-oblong, base not spurred; offsets not formed. |
||||
Leaves | (usually deciduous, if persistent, then blade white, soft, papery), alternate, (densely imbricate), spreading, sessile; blade yellow-green, not glaucous, triangular-ovate, terete to semiterete (elliptic in cross section), (2–)5(–8) × 1–4 mm, base obtusely short-spurred, not scarious, apex obtuse. |
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). |
||||
Inflorescences | cymes, 2–12-flowered or flowers solitary, monochasially (1–)2(–3)-branched; branches not recurved, rarely forked; bracts similar to leaves, smaller. |
cymes, ca. 30-flowered, ca. 3-branched; branches not recurved, forked; bracts oblong-spatulate or linear, ca. 3 cm, base not spurred. |
||||
Pedicels | absent or to 1 mm. |
2–8 mm. |
||||
Flowers | 5-merous; sepals erect to spreading, distinct basally, green, oblong-ovate, unequal, 2–3 × 1.3–2.3, mm, apex obtuse; petals spreading, distinct, bright yellow, oblong-ovate to lanceolate, not carinate, 5–9 mm, apex acute to acuminate; filaments yellow; anthers yellow, (oblong); nectar scales yellowish green, square. |
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. |
||||
Carpels | stellately patent in fruit, distinct, yellowish. |
divergent in fruit, connate basally, brown. |
||||
2n | = 40, 60, 80, 100, 120. |
= 30. |
||||
Sedum acre |
Sedum spathulifolium |
|||||
Phenology | Flowering spring. | |||||
Habitat | Rock outcrops, rock walls, calcareous habitats, disturbed sites | |||||
Elevation | 0-2400 m (0-7900 ft) | |||||
Distribution |
AL; CO; CT; IA; ID; IL; IN; KY; MA; MD; ME; MI; MN; MT; NC; NH; NJ; NY; OH; OR; PA; RI; SD; TN; VA; VT; WA; WI; WV; WY; AB; BC; MB; NB; NF; NS; ON; PE; QC; SK; Asia (Turkey); Greenland; Europe; n Africa [Introduced in South America (Argentina, Chile)]
|
CA; OR; WA; BC
|
||||
Discussion | Sedum acre is native in Greenland. It is naturalized in North America across the northern United States and southern Canada from Quebec to North Carolina in the east and from British Columbia to Oregon in the west. Sedum elrodii was found near Somers in Flathead County, Montana. It is known only from a fragmental type specimen. R. T. Clausen (1975) considered it a naturalized form of S. acre with ovate leaf blades, basally connate petals, and procumbent and branched stems from a fleshy rootstock. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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.) |
||||
Key |
|
|||||
Source | FNA vol. 8, p. 215. | FNA vol. 8, p. 222. | ||||
Parent taxa | Crassulaceae > Sedum | Crassulaceae > Sedum | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | S. elrodii | |||||
Name authority | Linnaeus: Sp. Pl. 1: 432. 1753 , | Hooker: Fl. Bor.-Amer. 1: 227. (1832) | ||||
Web links |
|
|