Ceanothus pinetorum

Coville

Contr. U.S. Natl. Herb. 4: 80, plate 6. 1893.

Common names: Coville’s ceanothus
Endemic
Treatment appears in FNA Volume 12. Treatment on page 106. Mentioned on page 95, 97.

Shrubs, 0.5–1.5 m, sometimes moundlike. Stems erect, spreading, or weakly ascending, sometimes arcuate, rooting at proximal nodes; branchlets reddish to grayish brown, sometimes glaucous, rigid, glabrous or sparsely puberulent. Leaves sometimes fascicled, not crowded; petiole 1–3 mm; blade flat to slightly cupped, slightly folded lengthwise adaxially, widely elliptic to suborbiculate, 10–20 × 8–19 mm, base rounded, margins thick to slightly revolute, dentate to denticulate most of length, teeth 9–15, apex rounded, abaxial surface pale green, glabrous except on veins, adaxial surface dark green, glabrous. Inflorescences axillary, 1.2–2.1 cm. Flowers: sepals, petals, and nectary pale blue to blue. Capsules 6–9 mm wide, weakly lobed; valves smooth to rugulose, horns subapical, prominent, erect, rugose, intermediate ridges present.


Phenology: Flowering May–Jun.
Habitat: Rocky granitic or metamorphic slopes and ridges, open pine forests.
Elevation: 1600–2600 m.

Discussion

Ceanothus pinetorum occurs disjunctly in the southern Trinity Mountains (Shasta and Trinity counties) and in the southern Sierra Nevada (Kern and Tulare counties).

Selected References

None.

Lower Taxa

None.

"thick" is not a number.

... more about "Ceanothus pinetorum"
perigynous +  and epigynous +
Clifford L. Schmidt† +  and Dieter H. Wilken +
Coville +
rounded +
Ceanothus sect. Cerastes +
3-veined +  and veined +
not gland-dotted +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
3[-5]-veined +  and pinnate +
spinulose +, spinose +, serrate +  and entire +
denticulate +, dentate +, crenulate +, crenate +  and serrulate +
widely elliptic;suborbiculate +
8mm;19mm +
not thorn-tipped +
puberulent +, glabrous +  and glaucous +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Coville’s ceanothus +
1600–2600 m. +
Rocky granitic or metamorphic slopes and ridges, open pine forests. +
subapical +
free +  and adnate +
0 cm0 mm <br />0 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
unisexual +  and bisexual +
1.2 cm12 mm <br />0.012 m <br /> (2.1 cm21 mm <br />0.021 m <br />) +
not crowded +
deciduous +  and persistent +
dentate;denticulate +
revolute +
pale blue;blue +
intrastaminal +
superior +  and inferior +
not fleshy +
perigynous +  and epigynous +
adnate +  and distinct +
6 +  and 5 +
Clawed (?) +, Obovate (?) +  and Spatulate (?) +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Flowering May–Jun. +
2-4-carpellate +
Contr. U.S. Natl. Herb. +
intermediate +
pink +, usually white +  and cream blue or purple +
distinct +
spreading +  and incurved +
6 +  and 5 +
keeled;lanceolate;deltate +
ascending +, spreading +  and erect +
Ceanothus pinetorum +
Ceanothus subg. Cerastes +
species +
paniclelike +  and racemelike +
not gland-tipped +
smooth +  and rugulose +
unarmed +  and armed +
polygamous +, dioecious +  and synoecious +