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cream stonecrop, creamy stonecrop

opposite stonecrop, orpine stonecrop, weak-stem stonecrop

Habit Herbs, perennial, cespitose or not, glabrous. Herbs, perennial, tufted, glabrous.
Stems

rhizomes, horizontal, much-branched, bearing rosettes.

decumbent, branched, bearing erect rosettes.

Flowering shoots

erect, simple, (6–)10–28 cm;

leaf blades suborbiculate or obovate, base not spurred;

offsets not formed.

erect, decumbent, or ascending, simple, 3–12 cm;

leaf blades ovate-elliptic, base not spurred;

offsets not formed.

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.

opposite and decussate (rarely alternate), ascending, sessile;

blade pale green, speckled with pink, sometimes pink or red, glaucous, usually elliptic, oblanceolate, or obovate, sometimes ovate-elliptic, subterete, ± globular, 4.2–7.2 × 2.8–4.3 mm, base not spurred, (clasping), not scarious, apex widely rounded or sometimes weakly emarginate, (surfaces minutely papillose).

Inflorescences

panicles, 10–120-flowered, 3–20-branched;

branches not recurved, dichotomously forked;

bracts similar to leaves, smaller.

cymes, 2–7-flowered, 2-branched;

branches not recurved, forked;

bracts similar to leaves, smaller.

Pedicels

2–5 mm.

to 1.2 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.

5-merous;

sepals erect, connate basally, pale green, glaucous, lanceolate, equal, 2–4.2 × 1.3–2 mm, apex obtuse, (papillose);

petals basally erect, distally spreading, connate basally, yellow, elliptic-lanceolate, slightly carinate, 6–9 mm, apex obtuse with mucronate appendage;

filaments yellow;

anthers yellow, (sometimes compressed and winged);

nectar scales yellow, orange-red, or salmon-pink, reniform to square.

Carpels

erect in fruit, distinct, brown, (strongly 5-veined).

erect or ascending in fruit, connate basally, straw colored with purple stripes.

2n

= 90.

= 14–18.

Sedum oregonense

Sedum debile

Phenology Flowering spring–summer. Flowering summer.
Habitat Gravel, mats of Selaginella or moss on rocky slopes and ledges, crevices of cliffs Open, rocky places
Elevation 900-2200 m (3000-7200 ft) 1500-3500 m (4900-11500 ft)
Distribution
from FNA
CA; OR
[WildflowerSearch map]
[BONAP county map]
from FNA
ID; MT; NM; NV; OR; UT; WY
[WildflowerSearch map]
[BONAP county map]
Discussion

The axillary, almost globular, rosettes of Sedum debile are the primary mode of propagation in this species (R. T. Clausen 1975).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 8, p. 220. FNA vol. 8, p. 211.
Parent taxa Crassulaceae > Sedum Crassulaceae > Sedum
Sibling taxa
S. acre, S. albomarginatum, S. album, S. annuum, S. borschii, S. cockerellii, S. debile, S. divergens, S. glaucophyllum, S. havardii, S. hispanicum, S. lanceolatum, S. laxum, S. leibergii, S. lineare, S. mexicanum, S. moranii, S. nanifolium, S. nevii, S. niveum, S. nuttallii, S. oblanceolatum, S. obtusatum, S. ochroleucum, S. oreganum, S. praealtum, S. pulchellum, S. pusillum, S. radiatum, S. robertsianum, S. rupestre, S. rupicola, S. sarmentosum, S. sexangulare, S. spathulifolium, S. stelliforme, S. stenopetalum, S. ternatum, S. villosum, S. wrightii
S. acre, S. albomarginatum, S. album, S. annuum, S. borschii, S. cockerellii, S. divergens, S. glaucophyllum, S. havardii, S. hispanicum, S. lanceolatum, S. laxum, S. leibergii, S. lineare, S. mexicanum, S. moranii, S. nanifolium, S. nevii, S. niveum, S. nuttallii, S. oblanceolatum, S. obtusatum, S. ochroleucum, S. oreganum, S. oregonense, S. praealtum, S. pulchellum, S. pusillum, S. radiatum, S. robertsianum, S. rupestre, S. rupicola, S. sarmentosum, S. sexangulare, S. spathulifolium, S. stelliforme, S. stenopetalum, S. ternatum, S. villosum, S. wrightii
Synonyms Cotyledon oregonensis Gormania debilis
Name authority (S. Watson) M. Peck: Man. Higher Pl. Oregon, 361. (1941) S. Watson: Botany (Fortieth Parallel), 102. (1871)
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