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.



John O. Sawyer, Jr. (except Ceanothus)

Shrub, vine, tree, generally erect, often thorny
Leaves simple, generally alternate, often clustered on short-shoots, generally petioled, generally stipuled; blade often 1–3-ribbed from base
Inflorescence: cyme, panicle, or flowers solitary in axils
Flower generally bisexual, radial; hypanthium subtending, surrounding, or partly fused to ovary; sepals 4 or 5; petals 0, 4, or 5, clawed; stamens 4 or 5, alternate sepals, attached to hypanthium top, each generally fitting into a petal concavity; ovary superior or partly inferior, chambers 2–5, each 1–2-ovuled, style lobes or parts 1–3
Fruit: capsule, drupe
Genera in family: 55 genera, 900 species: especially tropical, subtropical; some cultivated (Ceanothus ; Colletia , anchor-plant; Gouania ; Phylica ; Rhamnus ; Ventilago ; Ziziphus )
Reference: [Brizicky 1965 J Arnold Arbor 45:439–463]



Clifford L. Schmidt

Shrub, small tree, prostrate to erect, thorny or not
Stem: branches generally arranged as leaves
Leaves alternate or opposite, deciduous or evergreen, petioled; blade 1–3-ribbed from base, margin entire or not
Inflorescence: generally panicle-like aggregations of umbel-like, 3-flowered clusters
Flower generally < 5 mm; hypanthium surrounding fleshy disk below ovary base, in fruit thick, not splitting; sepals generally 5, lanceolate-deltate, incurved, colored like petals, persistent; petals generally 5, hooded, white to deep blue; stamens generally 5, opposite petals; ovary superior, 3-lobed, chambers 3, each 1-ovuled, style parts 3
Fruit: capsule, ± spheric, 3-valved
Seeds 3, ± 3 mm, 1 surface convex
Species in genus: 45 species: North America, especially w
Etymology: (Greek: thorny plant)
Reference: [Rensselaer & McMinn 1942 Ceanothus Santa Barbara Bot Gard 1–308]
Hybridization common (named hybrids not recognized here); hybrid forms may not key adequately.


C. gloriosus J.T. Howell

Plant prostrate to erect, < 2 m
Stem: twigs angled, green, red-brown, or brown, ± strigose or short-tomentose, becoming generally red-brown
Leaves opposite, evergreen, < 5 cm; stipules persistent; petiole < 4 mm; blade round to widely elliptic or oblong, 1-ribbed from base, firm, tip obtuse, truncate, or notched, margin dentate, teeth spine-like or not, upper surface dark green, glabrous, lower hairy on veins, canescent between
Inflorescence: raceme-like, < 2.5 cm
Flower deep blue to violet
Fruit generally 3.5–4.5 mm; horns minute, near top; ridges 0
Ecology: Sandy places, coastal bluffs, shrubby slopes, ridges
Elevation: < 500 m.
Bioregional distribution: North Coast, Outer North Coast Ranges, Central Coast, San Francisco Bay Area.


var. gloriosus


Plant prostrate or decumbent, < 3 dm, < 3 m wide
Stem: twigs angled, red-brown, ± strigose
Leaf 2–5 cm
Chromosomes: 2n=24
Ecology: UNCOMMON. Sandy places, coastal bluffs, closed-cone-pine forest
Elevation: < 500 m.
Bioregional distribution: s North Coast, n Central Coast (Marin Co.)
Horticultural information: DRN: 15, 16, 17 &IRR: 14, 19, 20, 21, 22, 23, 24; CVS.
See the CNPS Inventory for information about endangerment and rarity.
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bioregional map for CEANOTHUS%20gloriosus%20var.%20gloriosus being generated

Retrieve Jepson Interchange Index to Plant Names entry for Ceanothus gloriosus var. gloriosus
Retrieve dichotomous key for Ceanothus
Overlay Consortium of California Herbaria specimen data by county on this map
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