Jepson Flora Project: Jepson Interchange    

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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California

  • Up-to-date information about California vascular plants is available from the Jepson eFlora.



Annual to subshrubs, fleshy
Leaves generally simple, generally basal and cauline, alternate or opposite, generally reduced upward
Inflorescence: generally cyme, generally bracted
Flower: sepals generally 3–5, generally ± free; petals generally 3–5, ± free or fused; stamens = to >> sepals, free or epipetalous; pistils generally 3–5, simple (sometimes fused at base), ovary 1-chambered, placenta 1, parietal, ovules 1–many, style 1
Fruit: follicles generally 3–5
Seeds 1–many, small
Genera in family: ± 30 genera, ± 1500 species: ± worldwide, especially dry temp; many cultivated for ornamental. Family description and generic key by Melinda F. Denton and Reid Moran.


Melinda F. Denton

Generally per from rhizomes or stout, scaly caudex, generally glabrous
Leaves sessile, generally alternate, generally obovate to spoon-shaped
Inflorescence generally raceme- to panicle-like
Flower: sepals 4–5, free to fused below, < petals, obtuse to long-tapered; petals 4–5, free or fused below, erect to spreading; stamens 8 or 10, in 2 whorls, barely epipetalous; pistils 4–5, free or fused below,
Fruit erect or spreading
Seeds many, elliptic, often winged at both ends
Etymology: (Latin: to assuage, from healing properties of houseleek, to which Sedum was applied by some authors)
Reference: [Denton 1982 Brittonia 34:48–77]


S. laxum (Britton) A. Berger

Plant 7–40 cm, glabrous, sometimes glaucous; rosettes 1–6 cm diam, internodes between leaves < 3 mm
Leaves ± (ob)ovate; rosette leaves 9–50 mm, 1–5 mm thick, generally widest 3–8 mm below tip, rounded or barely notched; cauline leaves 5–20 mm
Inflorescence 2–11 cm, 12–80+-flowered, sometimes flat-topped
Flower: sepals generally 1/3–2/3 petals, generally acute; petals 7–13 mm, obovate, obtuse; anthers generally ± red-brown to purplish black
Fruit 6–12 mm, erect
Seed 1–2 mm
Ecology: Outcrops
Elevation: 50–2000 m.
Bioregional distribution: North Coast, n Outer North Coast Ranges, n High North Coast Ranges, Klamath Ranges
Distribution outside California: sw Oregon


subsp. heckneri (M. Peck) R.T. Clausen


Plant 9–24 cm
Leaves: rosette leaves 11–32 mm; cauline leaf length < or > width, base sheathing and ear-like
Flower: petals white to light pink
Chromosomes: n=15
Ecology: UNCOMMON. Generally steep serpentine or gabbro outcrops
Elevation: 100–1800 m.
Bioregional distribution: n Outer North Coast Ranges, Klamath Ranges
Distribution outside California: sw Oregon
Horticultural information: DRN, IRR, SHD: 5, 6, 15, 16, 17.
See the CNPS Inventory for information about endangerment and rarity.
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bioregional map for SEDUM%20laxum%20subsp.%20heckneri being generated

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