Ceanothus gloriosus |
Ceanothus crassifolius |
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glory mat, Point Reyes ceanothus |
hoary-leaf ceanothus |
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Habit | Shrubs, 0.1–3 m, matlike to moundlike. | Shrubs, 1.5–4 m. Stems erect, not rooting at nodes; branchlets grayish brown to brown, ± flexible to rigid, tomentulose, hairs straight. | ||||||||||||
Stems | prostrate, spreading, ascending, or erect, sometimes rooting at proximal nodes; branchlets green to brown or reddish brown, flexible to rigid, strigillose or tomentulose. |
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Leaves | not fascicled, not crowded; petiole 1–4 mm; blade flat to ± cupped or folded lengthwise adaxially, widely elliptic, obovate, or suborbiculate, 10–40(–45) × 5–24 mm, base cuneate to ± rounded, margins not revolute, sometimes slightly thickened, dentate to denticulate most of length, teeth 9–35, apex rounded, truncate, or retuse, abaxial surface pale green, sparsely strigillose or glabrate, adaxial surface dark green, ± shiny, glabrous. |
not fascicled; petiole 2–6 mm; blade flat to ± cupped, elliptic to widely elliptic, 12–25(–30) × 8–15(–23) mm, base obtuse to rounded, margins thick or revolute, entire to denticulate most of length, teeth 8–19, apex obtuse to rounded, abaxial surface pale green to white, tomentulose to glabrate, adaxial surface green, sparsely tomentulose, hairs straight, glabrescent. |
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Inflorescences | axillary, 0.9–2.5 cm. |
axillary or terminal, 1–2 cm. |
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Flowers | sepals, petals, and nectary deep blue to bluish purple. |
sepals and petals white; nectary blue to black. |
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Capsules | 4–6 mm wide, lobed; valves usually smooth, sometimes rugulose or crested distal to middle, horns subapical, minute, not rugose, intermediate ridges absent. |
5–9 mm wide, sometimes weakly lobed at apex; valves viscid, smooth, horns lateral, prominent, erect, intermediate ridges absent. |
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2n | = 24. |
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Ceanothus gloriosus |
Ceanothus crassifolius |
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Distribution |
CA
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CA; nw Mexico
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Discussion | Varieties 3 (3 in the flora). Ceanothus gloriosus is composed of three varieties occurring along the northern California coast from Humboldt County to Marin County. Variety gloriosus and var. porrectus generally differ primarily by leaf shape, length and width, and the number of marginal teeth. Variety exaltatus differs from the other two varieties primarily in stature. Complex hybrids with C. cuneatus var. ramulosus, C. divergens, and C. sonomensis were studied by J. T. Howell (1940). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Varieties 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 12, p. 102. | FNA vol. 12, p. 98. | ||||||||||||
Parent taxa | Rhamnaceae > Ceanothus > subg. Cerastes | Rhamnaceae > Ceanothus > subg. Cerastes | ||||||||||||
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Subordinate taxa | ||||||||||||||
Name authority | J. T. Howell: Leafl. W. Bot. 2: 43. (1937) | Torrey: in War Department [U.S.], Pacif. Railr. Rep. 4(5): 75. (1857) | ||||||||||||
Web links |