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lance-leaf stonecrop, spear-leaf stonecrop

feather river stonecrop

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

rootstocks, decumbent and ascending, branched, (sometimes papillose), bearing terminal rosettes and above ground shoots.

root-stocks, horizontal, branched, bearing terminal rosettes.

Flowering shoots

erect, simple or branched, 3–18 cm;

leaf blades elliptic-lanceolate, base short-spurred;

offsets not formed.

erect, mostly simple, 16–25 cm;

leaf blades oblanceolate-oblong or oblanceolate-elliptic, base not spurred;

offsets not formed.

Leaves

(not easily detached), alternate, spreading-erect to erect or ascending, sessile;

blade dull gray-green or bluish green, green, or reddish green, often glaucous, lanceolate, elliptic-lanceolate, or elliptic-ovate, subterete, 4.2–13 × 1.5–3.5 mm, base very short-spurred, base of withered blade at times becoming scarious, apex obtuse or obtusely apiculate, (surfaces papillose).

alternate, spreading to ascending, sessile;

blade blue-green with white margins (unique in flora area), glaucous, oblanceolate, oblanceolate-oblong, or spatulate, laminar, (14–)28–67 × (5–)11(–18) mm, base not spurred, not scarious, (margins somewhat erose), apex widely rounded or truncate, sometimes emarginate.

Inflorescences

cymes, 5–25-flowered, (1–)3(–6)-branched;

branches ascending, spreading to erect, or recurved, forked;

bracts similar to leaves.

elongated, paniculate cymes, 20–55-flowered, 3–15-branched;

branches not recurved, forked;

bracts similar to leaves, smaller.

Pedicels

absent or to 3 mm.

3–5(–8) mm.

Flowers

5-merous;

sepals erect, connate basally, pale green to yellow-green, ovate or lanceolate, equal, 2–5 × 1–2 mm, apex acute or, rarely, obtuse, (often papillose);

petals widely spreading from suberect base, distinct, canary to golden yellow, lanceolate, elliptic-lanceolate, or linear-lanceolate, canaliculate, 6–9.2 mm, apex acute to acuminate with minute mucronate appendage;

filaments yellow;

anthers yellow, sometimes suffused with red;

nectar scales deep yellow to yellow-green, obovately square.

5-merous;

sepals erect, connate basally, green or sometimes slightly glaucous, lanceolate, equal, ca. 4.5 × 2.5 mm, apex acute or subacute, (sometimes minutely papillose-ciliate);

petals erect proximally, slightly spreading distally, (imbricate), connate basally, yellow, oblanceolate-oblong, often with minute, mucronate appendage, not carinate, ca. 9.5 mm, (distal margins erose), apex acute or obtuse;

filaments pale green;

anthers yellow;

nectar scales white, transversely oblong.

Carpels

erect in fruit, basally connate, brown.

suberect, distinct, brown.

2n

= 16.

= 30.

Sedum lanceolatum

Sedum albomarginatum

Phenology Flowering early summer.
Habitat Serpentine outcrops
Elevation 300-900 m (1000-3000 ft)
Distribution
from FNA
AK; AZ; CA; CO; ID; MT; NE; NM; NV; OR; SD; UT; WA; WY; AB; BC; SK; YT
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Varieties 2 (2 in the flora).

Sedum lanceolatum forms offsets in the axils of rosette leaves. The mature carpels have divergent beaks and narrow lips along the adaxial suture.

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

Of conservation concern.

Sedum albomarginatum is unusual in having woody roots. It is known from the Feather River Canyon of northern California. The white margins, formed from epicuticular wax, may not be as conspicuous on plants growing in shade.

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

Key
1. Rosette leaf blades 4.2-9 × 1.5-2.5 mm.
var. lanceolatum
1. Rosette leaf blades 8-13 × 3-3.5 mm.
var. nesioticum
Source FNA vol. 8, p. 206. FNA vol. 8, p. 220.
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. 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. 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. 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
Subordinate taxa
S. lanceolatum var. lanceolatum, S. lanceolatum var. nesioticum
Name authority Torrey: Ann. Lyceum Nat. Hist. New York 2: 205. (1827) R. T. Clausen: Sedum N. Amer., 424, figs. 120–122. (1975)
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