Ceanothus parryi |
Ceanothus incanus |
|
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ladybush, Parry ceanothus, Parry's ceanothus |
coast whitethorn |
|
Habit | Shrubs, evergreen, 2–6 m. Stems erect or ascending, not rooting at nodes; branchlets grayish green to brown, not thorn-tipped, usually round, sometimes ± angled, in cross section, flexible, lanate to woolly, glabrescent. | Shrubs, evergreen, 1–4 m. Stems erect, not rooting at nodes; branchlets light gray, glaucous, thorn-tipped or not, round or slightly angled in cross section, rigid, puberulent, glabrescent. |
Leaves | petiole 1–8 mm; blade flat to slightly cupped, oblong or ± elliptic, 12–50 × 6–20 mm, base obtuse to rounded, margins entire or obscurely glandular-denticulate, narrowly revolute, glands 21–36, apex obtuse, abaxial surface green, cobwebby, soon glabrescent, adaxial surface dark green, shiny, villosulous, glabrescent; usually 3-veined from base, rarely pinnately veined. |
not fascicled; petiole 3–12 mm; blade flat, elliptic, ovate, or suborbiculate, 20–60 × 10–30 mm, base rounded or subcordate, margins entire, sometimes minutely glandular-denticulate above middle, glands 26–52, apex obtuse, abaxial surface pale green, appressed-puberulent, glabrescent, adaxial surface grayish green, dull, glabrate; 3-veined from base. |
Inflorescences | axillary or terminal, paniclelike, 5–15 cm. |
axillary, usually paniclelike, sometimes racemelike, 3–6 cm. |
Flowers | sepals, petals, and nectary deep blue. |
sepals, petals, and nectary usually white to cream, sometimes pink. |
Capsules | 2.5–4 mm wide, lobed; valves smooth, not or weakly crested. |
4–5 mm wide, ± lobed; valves rugose, viscid when young, not or weakly crested. |
2n | = 24. |
= 24. |
Ceanothus parryi |
Ceanothus incanus |
|
Phenology | Flowering Apr–May. | Flowering Apr–Jun. |
Habitat | Rocky soils, open sites, flats, mixed evergreen and redwood forests. | Flats, slopes, chaparral, open sites in conifer and mixed evergreen forests. |
Elevation | 30–800 m. (100–2600 ft.) | 60–1000 m. (200–3300 ft.) |
Distribution |
CA; OR
|
CA
|
Discussion | Ceanothus parryi occurs in the outer coast ranges of Oregon (Benton and Lane counties) and from Humboldt County south to Napa County in California; it is reported to hybridize with C. foliosus, C. incanus, and C. thyrsiflorus (H. McMinn 1944). The deep blue sepals and petals, cobwebby indumentum on young leaves, and narrowly revolute leaf margins are diagnostic. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Ceanothus incanus is restricted to the Klamath and Santa Cruz mountains and North Coast Ranges of California. Some populations are evidently polymorphic for the presence of thorn-tipped or non-thorn-tipped branchlets (F. K. Klein 1970). Putative hybrids with C. papillosus and C. parryi have been reported (H. McMinn 1944); hybrids with C. thyrsiflorus have been called C. ×vanrensselaeri Roof. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 12, p. 90. | FNA vol. 12, p. 86. |
Parent taxa | Rhamnaceae > Ceanothus > subg. Ceanothus | Rhamnaceae > Ceanothus > subg. Ceanothus |
Sibling taxa | ||
Name authority | Trelease: Proc. Calif. Acad. Sci., ser. 2, 1: 109. (1888) | Torrey & A. Gray: Fl. N. Amer. 1: 265. (1838) |
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