Ceanothus lemmonii |
Ceanothus tomentosus |
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Lemmon's ceanothus |
woolly leaf ceanothus, woolyleaf ceanothus |
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Habit | Shrubs, evergreen, 0.5–1 m. Stems ascending to spreading, not rooting at nodes; branchlets pale green to grayish green and glaucous, not thorn-tipped, round in cross section, flexible to ± rigid, sparsely villosulous. | Shrubs, evergreen, 1.5–2.5 m. Stems erect, rarely spreading, not rooting at nodes; branchlets reddish brown, not thorn-tipped, round in cross section, flexible, tomentulose, glabrescent. | ||||
Leaves | petiole 2–6 mm; blade flat, narrowly elliptic to oblong-elliptic, 13–35 × 6–15 mm, base cuneate to rounded, margins serrulate to denticulate most of length, not revolute, not wavy, teeth 34–45, apex acute to obtuse, abaxial surface pale green to grayish green and glaucous, villosulous, especially on veins, adaxial surface green, strigillose; pinnately veined or weakly 3-veined from base. |
petiole 1–4 mm; blade flat, ovate to widely elliptic, 10–25 × 5–12 mm, base obtuse to rounded, margins serrulate to denticulate most of length, not revolute, teeth 39–71, apex obtuse, abaxial surface light or gray-green, tomentose to tomentulose, adaxial surface dark green, villosulous or puberulent, glabrescent; usually 3-veined from base, rarely pinnately veined (veins sometimes obscured by indumentum). |
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Inflorescences | axillary or terminal, umbel-like to racemelike, 2–6.5 cm. |
axillary or terminal, racemelike or paniclelike, 2–6 cm. |
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Flowers | sepals, petals, and nectary pale to deep blue. |
sepals, petals, and nectary usually deep blue, sometimes pale blue. |
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Capsules | 3–4 mm wide, lobed near apex; valves smooth, crested. |
3–4 mm wide, slightly lobed at apex; valves smooth, viscid when young, crested. |
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2n | = 24. |
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Ceanothus lemmonii |
Ceanothus tomentosus |
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Phenology | Flowering Apr–May. | |||||
Habitat | Rocky slopes and flats, open sites, conifer forests, oak and pine woodlands. | |||||
Elevation | 200–1300 m. (700–4300 ft.) | |||||
Distribution |
CA
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CA; nw Mexico
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Discussion | Ceanothus lemmonii occurs in the inner North Coast Ranges, Klamath Mountains, and the western slope of the Cascade Range and northern Sierra Nevada. H. McMinn (1944) reported putative hybrids with C. foliosus, C. integerrimus, and C. oliganthus var. sorediatus. (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. 94. | FNA vol. 12, p. 89. | ||||
Parent taxa | Rhamnaceae > Ceanothus > subg. Ceanothus | Rhamnaceae > Ceanothus > subg. Ceanothus | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Name authority | Parry: Proc. Davenport Acad. Nat. Sci. 5: 192. (1889) — (as lemmoni) | Parry: Proc. Davenport Acad. Nat. Sci. 5: 190. (1889) | ||||
Web links |