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opposite stonecrop, orpine stonecrop, weak-stem stonecrop

Applegate stonecrop, oblong-leaf stonecrop

Habit Herbs, perennial, tufted, glabrous. Herbs, perennial, cespitose, glabrous.
Stems

decumbent, branched, bearing erect rosettes.

rootstocks, erect, branched from base, bearing rosettes.

Flowering shoots

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

leaf blades ovate-elliptic, base not spurred;

offsets not formed.

erect, simple, 6–15 cm;

leaf blades oblanceolate-oblong, base short-spurred;

offsets not formed.

Leaves

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).

alternate, erect, sessile;

blade green, appearing whitish because of pruinose covering, margins green, not white, strongly pruinose, not glaucous, narrowly obovate, laminar, 7–38 × 5–9 mm, base spurred, not scarious, apex usually obtuse to truncate, sometimes emarginate.

Inflorescences

cymes, 2–7-flowered, 2-branched;

branches not recurved, forked;

bracts similar to leaves, smaller.

dense, paniculate cymes, 30–60-flowered, 7–9-branched;

branches not recurved, somewhat forked;

bracts similar to leaves, smaller.

Pedicels

to 1.2 mm.

3–5 mm.

Flowers

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.

5-merous;

sepals erect, connate basally, green, appearing blue-green, glaucous, lanceolate-oblong, equal, 4–7 × 1.5–3.2 mm, apex acute, (papillose);

petals erect, connate basally, creamy white, oblong, not carinate, 8.5–11.5 mm, apex acute, mucronate;

filaments white, becoming reddish;

anthers yellow;

nectar scales yellow, transversely oblong.

Carpels

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

erect in fruit, connate basally, brown.

2n

= 14–18.

= 30.

Sedum debile

Sedum oblanceolatum

Phenology Flowering summer. Flowering summer.
Habitat Open, rocky places Rocky slopes, in crevices, edges of rocks
Elevation 1500-3500 m (4900-11500 ft) 400-1600 m (1300-5200 ft)
Distribution
from FNA
ID; MT; NM; NV; OR; UT; WY
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; OR
[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.)

Sedum oblanceolatum is restricted to the upper Klamath and Applegate river basins in Jackson County, Oregon, and Siskiyou County, California. Represented by relatively few individual plants, it occurs on a wide range of substrates including phyllite-schist, schist, metavolcanics, metasedimentary, as well as ultramafics like serpentine, soapstone, and peridotite. It is of conservation concern in California.

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

Source FNA vol. 8, p. 211. FNA vol. 8, p. 219.
Parent taxa Crassulaceae > Sedum Crassulaceae > Sedum
Sibling taxa
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
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. 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 Gormania debilis
Name authority S. Watson: Botany (Fortieth Parallel), 102. (1871) R. T. Clausen: Sedum N. Amer., 404, figs. 113, 114. (1975)
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