Ceanothus cyaneus |
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lakeside ceanothus, San Diego buckbrush |
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Habit | Shrubs, evergreen, 2–5 m. Stems erect, not rooting at nodes; branchlets light green, not thorn-tipped, angled in cross section, flexible, often tuberculate (tubercles minute, brownish), puberulent, glabrescent. |
Leaves | petiole 2–6 mm; blade flat, ovate-elliptic, 20–50 × 15–20 mm, base rounded, margins usually denticulate to serrulate, rarely entire, not revolute, teeth 23–58, apex acute to obtuse, abaxial surface pale green, veins puberulent, adaxial surface dark green, glabrous or sparsely puberulent; 3-veined from base. |
Inflorescences | terminal, paniclelike, 15–30(–40) cm. |
Flowers | sepals, petals, and nectary deep blue. |
Capsules | 3–5 mm wide, deeply lobed; valves smooth, weakly crested. |
2n | = 24. |
Ceanothus cyaneus |
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Phenology | Flowering Apr–Jun. |
Habitat | Rocky or gravelly slopes, chaparral. |
Elevation | 40–600 m. (100–2000 ft.) |
Distribution |
CA; Mexico (Baja California)
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Discussion | Ceanothus cyaneus is known in the flora area only from San Diego County, and is threatened throughout its range. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 12, p. 90. |
Parent taxa | Rhamnaceae > Ceanothus > subg. Ceanothus |
Sibling taxa | |
Name authority | Eastwood: Proc. Calif. Acad. Sci., ser. 4, 16: 361. (1927) |
Web links |