Sedum spathulifolium |
Sedum oblanceolatum |
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broadleaf stonecrop |
oblongleaf stonecrop |
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Habit | Plants perennial, forming open mats, glabrous; stolons slender, 0.4–1.3 mm when dried. | Plants perennial, glabrous; stolons 1.4–5 mm in diameter when dried. |
Stems | extensively stoloniferous, with dense terminal rosettes. |
erect, branched from base, bearing dense rosettes with hidden internodes. |
Flowering shoots | erect; simple, 3–14 cm; stem leaves alternate, spatulate-oblong or elliptic-oblong; widest at or below middle, different from rosette leaves. |
10–22 cm; stem leaves ascending to somewhat spreading, alternate, narrowly oblanceolate, 15–30 × 3–10 mm, 2.2–5 × as long as wide; broadest above middle, bases not auriculate; surfaces strongly glaucous. |
Leaves | rosette leaves spreading, usually nearly parallel to ground, usually forming flat rosettes, spatulate, narrowing to petioles, 7–19 × 4.5–10 mm, 5 × as wide as thick, green or pruinose and white, bases not spurred, not scarious, sometimes muricate or papillose near margins; tips rounded or truncate; surfaces usually glaucous. |
rosette leaves narrowly oblanceolate, 9–55 × 5–10 mm, 2.5–8 × as long as wide, with thick layer of granular white wax. |
Inflorescences | cymes with ~30 flowers, 3-branched; branches forked; bracts oblong-spatulate or linear. |
panicle-like cymes, 2.5–8.5 cm, with thick layer of granular white wax, 3–5-branched. |
Flowers | 5-parted; sepals spreading to erect, lanceolate, linear-lanceolate, oblong-ovate or obovate; ~2.5 × 1.5 mm, green to yellow-green; tips acute or obtuse; surface glaucous or pruinose; petals strongly spreading above erect base, linear to oblanceolate, 4.5–9 mm, yellow; tips acute; filaments yellow; anthers yellow. |
calyx lobes 4–8 mm; (30)40(80)% as long as petals, with thick layer of granular white wax; tips acute; petals ascending, 9–14 mm, white, sometimes apparently yellow due to color of anthers; tips acute to attenuate; anthers yellow. |
Fruits | erect until mature then spreading, fused basally, brown. |
erect, fused to slightly above base. |
Sedum spathulifolium |
Sedum oblanceolatum |
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Distribution | ||
Discussion | Rocks, cliffs and road cuts. Flowering Apr–Aug. 0–2400 m. Casc, Col, CR, ECas, Est, Sisk, WV. CA, WA; north to British Columbia. Native. Sedum spathulifolium is highly variable. If subspecies are recognized, most of our plants are S. spathulifolium ssp. spathulifolium. A coastal form with thick, white-pruinose leaves, short, stout stolons, dense inflorescences and thick, crowded stem leaves can be called S. s. ssp. pruinosum (if it is considered a strictly coastal entity). If it is considered to include strongly glaucous or pruinose plants of the Coast Range that are less dense in growth form, the name S. s. var. minus would be applied. Plants with thin, green leaves, numerous long, slender stolons that tend to grow upwards before growing out, paler flowers, and more spreading follicles can be called S. s. ssp. purdyi, a rare form known only from southern Josephine County, and Del Norte and Siskiyou counties in California. |
Rock outcrops, rocky slopes. Flowering May–Jul. 400–1800 m. Sisk. CA. Native. Sedum oblanceolatum can be recognized by its narrow rosette and stem leaves. The dense, almost granular, waxy coating on the young leaves, panicle branches, and sepals imparts a waxy residue when handled. The distinctive glaucous coating wears off gradually as the season progresses. It also melts off in a plant press or microwave. |
Source | Flora of Oregon, volume 2, page 605 Barbara Wilson, Richard Brainerd, Nick Otting |
Flora of Oregon, volume 2, page 603 Barbara Wilson, Richard Brainerd, Nick Otting |
Sibling taxa | ||
Synonyms | Sedum spathulifolium ssp. pruinosum, Sedum spathulifolium ssp. purdyi, Sedum spathulifolium ssp. spathulifolium, Sedum spathulifolium var. minus, Sedum spathulifolium var. pruinosum, Sedum spathulifolium var. spathulifolium | |
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