Ceanothus spinosus |
Ceanothus parryi |
|
---|---|---|
green-bark ceanothus, redheart |
ladybush, Parry ceanothus, Parry's ceanothus |
|
Habit | Shrubs, sometimes arborescent, evergreen, 2–6 m. Stems erect, not rooting at nodes; branchlets green, thorn-tipped or not, round to ± angled in cross section, rigid, glabrous or sparsely puberulent. | 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. |
Leaves | not fascicled; petiole 4–7 mm; blade ± cupped, elliptic to oblong, 11–35 × 8–29 mm, base cuneate to rounded, margins entire, apex obtuse to weakly retuse, abaxial surface pale green, not glaucous, sometimes puberulent on midribs, adaxial surface green, shiny, glabrous; pinnately veined. |
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. |
Inflorescences | axillary, paniclelike, 4–17 cm. |
axillary or terminal, paniclelike, 5–15 cm. |
Flowers | sepals, petals, and nectary pale blue to blue. |
sepals, petals, and nectary deep blue. |
Capsules | 4–6 mm wide, not lobed; valves smooth, not conspicuously viscid, not or weakly crested. |
2.5–4 mm wide, lobed; valves smooth, not or weakly crested. |
2n | = 24. |
= 24. |
Ceanothus spinosus |
Ceanothus parryi |
|
Phenology | Flowering Jan–May. | Flowering Apr–May. |
Habitat | Rocky slopes, coastal sage scrub, chaparral. | Rocky soils, open sites, flats, mixed evergreen and redwood forests. |
Elevation | 60–900 m. (200–3000 ft.) | 30–800 m. (100–2600 ft.) |
Distribution |
CA; Mexico (Baja California)
|
CA; OR
|
Discussion | Like Ceanothus incanus, plants of C. spinosus are polymorphic for the presence of thorn-tipped branchlets. Putative hybrids with C. thyrsiflorus and C. oliganthus var. sorediatus have been reported (M. Van Rensselaer and H. McMinn 1944). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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.) |
Source | FNA vol. 12, p. 86. | FNA vol. 12, p. 90. |
Parent taxa | Rhamnaceae > Ceanothus > subg. Ceanothus | Rhamnaceae > Ceanothus > subg. Ceanothus |
Sibling taxa | ||
Name authority | Nuttall: in J. Torrey and A. Gray, Fl. N. Amer. 1: 267. (1838) | Trelease: Proc. Calif. Acad. Sci., ser. 2, 1: 109. (1888) |
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