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Sedum oregonense
(S. Watson) M. Peck
Family:
Crassulaceae
Cream Stonecrop
FNA
Resources
Hideaki Ohba in Flora of North America (vol. 8)
Herbs,
perennial, cespitose or not, glabrous.
Stems
rhizomes, horizontal, much-branched, bearing rosettes.
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.
Flowering shoots
erect, simple, (6-)10-28 cm; leaf blades suborbiculate or obovate, base not spurred; offsets not formed.
Inflorescences
panicles, 10-120-flowered, 3-20-branched; branches not recurved, dichotomously forked; bracts similar to leaves, smaller.
Pedicels
2-5 mm.
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.
Carpels
erect in fruit, distinct, brown, (strongly 5-veined).
2
n
= 90.
Flowering spring-summer. Gravel, mats of
Selaginella
or moss on rocky slopes and ledges, crevices of cliffs; 900-2200 m; Calif., Oreg.
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This project made possible by
National Science Foundation Award 1410069
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