Ceanothus lemmonii

Parry

Proc. Davenport Acad. Nat. Sci. 5: 192. 1889.

Common names: Lemmon’s ceanothus
Endemic
Treatment appears in FNA Volume 12. Treatment on page 94. Mentioned on page 80, 81.

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. Leaves: petiole 2–6 mm; blade flat, narrowly elliptic to oblongelliptic, 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. Inflorescences axillary or terminal, umbellike to racemelike, 2–6.5 cm. Flowers: sepals, petals, and nectary pale to deep blue. Capsules 3–4 mm wide, lobed near apex; valves smooth, crested. 2n = 24.


Phenology: Flowering Apr–May.
Habitat: Rocky slopes and flats, open sites, conifer forests, oak and pine woodlands.
Elevation: 200–1300 m.

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.

Selected References

None.

Lower Taxa

None.

"thin" is not a number.

... more about "Ceanothus lemmonii"
pale green +  and grayish green +
villosulous +  and glaucous +
perigynous +  and epigynous +
Acute (?) +  and Obtuse (?) +
Clifford L. Schmidt† +  and Dieter H. Wilken +
cuneate +  and rounded +
3-veined +  and veined +
not gland-dotted +
1.3 cm13 mm <br />0.013 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
3[-5]-veined +  and pinnate +
spinulose +, spinose +, serrate +  and entire +
denticulate +, dentate +, crenulate +, crenate +  and serrulate +
narrowly elliptic;oblongelliptic +
6mm;15mm +
not thorn-tipped +
villosulous +  and glaucous +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Lemmon’s ceanothus +
200–1300 m. +
Rocky slopes and flats, open sites, conifer forests, oak and pine woodlands. +
free +  and adnate +
0 cm0 mm <br />0 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
terminal +  and axillary +
unisexual +  and bisexual +
umbellike +  and racemelike +
2 cm20 mm <br />0.02 m <br /> (6.5 cm65 mm <br />0.065 m <br />) +
3-veined +  and veined +
deciduous +  and persistent +
serrulate;denticulate +
not wavy +
pale;deep blue +
intrastaminal +
superior +  and inferior +
not fleshy +
perigynous +  and epigynous +
adnate +  and distinct +
6 +  and 5 +
Clawed (?) +, Obovate (?) +  and Spatulate (?) +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Flowering Apr–May. +
2-4-carpellate +
Proc. Davenport Acad. Nat. Sci. +
pink +, usually white +  and cream blue or purple +
distinct +
spreading +  and incurved +
6 +  and 5 +
keeled;lanceolate;deltate +
not rooting +
ascending +  and spreading +
3-veined +  and veined +
Ceanothus lemmonii +
Ceanothus subg. Ceanothus +
species +
paniclelike +  and racemelike +
gland-tipped +
crested +
unarmed +  and armed +
polygamous +, dioecious +  and synoecious +