Jepson Flora Project: Jepson Interchange    

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

CELASTRACEAE

STAFF-TREE FAMILY

Barry A. Prigge

Shrub (sometimes climbing), tree, sometimes thorny, generally glabrous
Leaves simple, opposite or alternate, ephemeral to persistent, subsessile or petioled; veins pinnate
Inflorescence: cluster, cyme, raceme, panicle, or flower solitary, axillary or terminal, bracted
Flower generally bisexual, radial, small; hypanthium ± cup-shaped; sepals 4–5; petals (0)4–5, free; stamens 4–5, alternate petals, attached below or to rim of disk; ovary superior or ± embedded in disk, 2–5-chambered, placentas axile or basal, style generally 1, short, stigma ± head-like, 2–5-lobed
Fruit: capsule, winged achene, berry, drupe, or nutlet, often 1-chambered
Seed generally 1 per chamber, arilled
Genera in family: 50 genera, 800 species: worldwide, especially se Asia; some ornamental (Celastrus, Euonymus, Maytenus,, Paxistima )
Reference: [Brizicky 1964 J Arnold Arbor 45:206–234]

EUONYMUS

BURNING BUSH

Shrub, small tree, erect, glabrous
Stem: twig generally 4-angled, with corky ridges
Leaves opposite, deciduous, generally scalloped or finely toothed
Inflorescence axillary, few-flowered; pedicel jointed to peduncle
Flower: parts in 5's; petals ± green or purple; disk fused to hypanthium, flat, ± 5-lobed; stamens short, attached to disk margin; ovary embedded in disk, sometimes bumpy or warty, style 0 or short, stigma lobes 3–5, obscure
Fruit: capsule, loculicidal; valves 3–5
Seed white, red, or black, enclosed by orange or red aril
Species in genus: 180 species: especially tropical s hemisphere
Etymology: (Greek: good name)
Reference: [Blakelock 1961 Kew Bull 210–290]

Native

E. occidentalis Torr.

WESTERN BURNING BUSH

Plant 2–6 m
Stem: branches slender, often climbing
Leaf: petiole 3–15 mm; blade 3–14 cm, ovate to obovate, thin, base truncate to tapered
Inflorescence 1–5-flowered; peduncle 2–7 cm, slender; pedicel 5–15 mm
Flower: sepals 1–1.5 mm, 1.5–2.5 mm wide; petals 4–6.5 mm, brown-purple, finely dotted, margin transparent; disk ± 3 mm wide
Fruit depressed, deeply 3-lobed, smooth
Seed 4–6 mm, brownish; aril ± red
Ecology: Shaded streambanks, canyons
Elevation: < 2000 m.
Bioregional distribution: Northwestern California, Central Western California, Peninsular Ranges
Distribution outside California: to Washington

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