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broad-leaf stonecrop, Pacific stonecrop, spatula-leaf stonecrop

Leiberg stonecrop, Leiberg's stonecrop

Habit Herbs, perennial, mat-forming, glabrous. Herbs, biennial, erect, glabrous.
Stems

rhizomatous, procumbent or creeping, much-branched, bearing terminal rosettes.

rootstocks, horizontal, simple, bearing basal rosettes (axillary shoots with subterranean, white stems that detach easily and bear terminal rosettes of colorless leaves).

Flowering shoots

erect, simple, 3–14 cm;

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

offsets not formed.

erect, simple, (5–)11(–18) cm;

leaf blades ovate or elliptic, base not spurred;

offsets not formed.

Leaves

alternate, spreading, petiolate;

blade green, often glaucous or pruinose, spatulate, terete to laminar, 7–19 × 4.5–10 mm, base not spurred, not scarious, apex rounded or truncate, submucronate, (surfaces papillose marginally).

alternate, spreading, outermost ones petiolate (petiole 4–5 mm);

blade green or greenish white, not glaucous, oblanceolate, obovate, or narrowly spatulate, laminar, 2–16 × 1.4–3.2 mm, base not spurred, not scarious, apex blunt, (surfaces papillose).

Inflorescences

cymes, ca. 30-flowered, ca. 3-branched;

branches not recurved, forked;

bracts oblong-spatulate or linear, ca. 3 cm, base not spurred.

cymes, 5–60-flowered, 3–6-branched;

branches often strongly recurved, each 1 or 2 times dichotomously forked;

bracts similar to leaves, smaller.

Pedicels

2–8 mm.

to 0.3 mm.

Flowers

5-merous;

sepals spreading to erect, connate basally, green or yellow-green, glaucous or pruinose, lanceolate, linear-lanceolate, oblong-ovate, or obovate, equal, ca. 2.5 × 1.5 mm, apex acute or obtuse;

petals widely spreading from short, erect base, distinct or slightly connate basally, yellow, linear to oblanceolate, not carinate, 4.5–9 mm, apex acute;

filaments yellow;

anthers yellow;

nectar scales yellow, reniform or nearly square.

(5–)6(–7)-merous;

sepals erect, slightly connate basally, green, ovate, equal, 1.5–2 × 0.7–1.1 mm, apex acute;

petals spreading, distinct nearly to base, canary yellow, keel green or dark red, lanceolate to oblong, carinate, 4–6 mm, apex subobtuse to acute;

filaments yellow;

anthers yellow;

nectar scales deep yellow, subquadrate.

Carpels

divergent in fruit, connate basally, brown.

stellately spreading in fruit, connate basally, brown.

2n

= 30.

= 16.

Sedum spathulifolium

Sedum leibergii

Phenology Flowering spring–summer.
Habitat Open or largely bare areas, basalt or limestone, rocky hillsides, cliffs
Elevation 50-1200 m (200-3900 ft)
Distribution
from FNA
CA; OR; WA; BC
[WildflowerSearch map]
[BONAP county map]
from FNA
ID; OR; WA
[WildflowerSearch map]
[BONAP county map]
Discussion

Varieties 2 (2 in the flora).

The mature carpels of Sedum spathulifolium have five ribs and prominent lips along the adaxial suture. The flowers are sweetly fragrant.

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

Variation in the number of floral parts of Sedum leibergii (5–7-merous) is unique in North American sedums. It has tiny rosettes of lax, long-spatulate basal leaves that mostly have shriveled by anthesis. Sedum borschii, which is often confused with S. leibergii, has primary rosettes, prominent at anthesis, that have obovate or elliptic leaves.

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

Key
1. Primary rosettes 2.5-3.7 cm diam.; leaf blades not pruinose, glaucous or not, 1.4-2.1 mm thick; flowers 1.2-1.6 cm diam.
var. spathulifolium
1. Primary rosettes 1.5-2.1 cm diam.; leaf blades pruinose, not glaucous, 2.1-2.5 mm thick; flowers 1-1.2 cm diam.
var. pruinosum
Source FNA vol. 8, p. 222. FNA vol. 8, p. 209.
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. oregonense, S. praealtum, S. pulchellum, S. pusillum, S. radiatum, S. robertsianum, S. rupestre, S. rupicola, S. sarmentosum, S. sexangulare, 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. 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. spathulifolium var. pruinosum, S. spathulifolium var. spathulifolium
Synonyms S. divaricatum, Amerosedum leibergii
Name authority Hooker: Fl. Bor.-Amer. 1: 227. (1832) Britton: in N. L. Britton et al., N. Amer. Fl. 22: 73. (1905)
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