Ceanothus velutinus var. laevigatus

Torrey & A. Gray

Fl. N. Amer. 1: 686. 1840.

Endemic
Basionym: Ceanothus laevigatus Hooker Fl. Bor.-Amer. 1: 125. 1831
Treatment appears in FNA Volume 12. Treatment on page 84. Mentioned on page 83.

Shrubs, sometimes arborescent, 2–6 m. Leaf-blades: abaxial surface glabrous, veins glabrous or sparsely puberulent. Capsules: valves ± rugose. 2n = 24.


Phenology: Flowering Mar–Jun.
Habitat: Clearings, open sites, mixed evergreen and conifer forests.
Elevation: 0–1400 m.

Distribution

V12 423-distribution-map.jpg

B.C., Calif., Oreg., Wash.

Discussion

Variety laevigatus is distributed primarily in coastal mountains from California north to British Columbia and on the west slope of the Cascade Range. Ceanothus velutinus var. hookeri M. C. Johnston, based on C. laevigatus Hooker, is an illegitimate name. Putative hybrids between C. velutinus var. velutinus and C. thyrsiflorus have been named C. ×mendocinensis McMinn.

Selected References

None.

Lower Taxa

None.

"thin" is not a number.

perigynous +  and epigynous +
Clifford L. Schmidt† +  and Dieter H. Wilken +
Torrey & A. Gray +
subcordate +  and rounded +
Ceanothus laevigatus +
3-veined +  and veined +
8 cm80 mm <br />0.08 m <br /> (13 cm130 mm <br />0.13 m <br />) +
5.5 cm55 mm <br />0.055 m <br /> (6 cm60 mm <br />0.06 m <br />) +
not gland-dotted +
4 cm40 mm <br />0.04 m <br /> (8 cm80 mm <br />0.08 m <br />) +
3[-5]-veined +  and pinnate +
spinulose +, spinose +, serrate +  and entire +
denticulate +, dentate +, crenulate +, crenate +  and serrulate +
aromatic +
widely elliptic;ovate-elliptic +
20mm;55mm +
not thorn-tipped +
glabrescent +  and puberulent +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
B.C. +, Calif. +, Oreg. +  and Wash. +
0–1400 m. +
Clearings, open sites, mixed evergreen and conifer forests. +
free +  and adnate +
0 cm0 mm <br />0 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
unisexual +  and bisexual +
5 cm50 mm <br />0.05 m <br /> (12 cm120 mm <br />0.12 m <br />) +
deciduous +  and persistent +
glandular-serrulate +
yellow-tinged +
intrastaminal +
superior +  and inferior +
not fleshy +
perigynous +  and epigynous +
adnate +  and distinct +
6 +  and 5 +
Clawed (?) +, Obovate (?) +  and Spatulate (?) +
0.9 cm9 mm <br />0.009 m <br /> (3.2 cm32 mm <br />0.032 m <br />) +
Flowering Mar–Jun. +
2-4-carpellate +
Fl. N. Amer. +
distinct +
spreading +  and incurved +
6 +  and 5 +
keeled;lanceolate;deltate +
not rooting +
ascending +  and erect +
3-veined +  and veined +
Ceanothus velutinus var. laevigatus +
Ceanothus velutinus +
variety +
paniclelike +  and racemelike +
gland-tipped +
not crested +  and crested +
puberulent +  and glabrous +
unarmed +  and armed +
polygamous +, dioecious +  and synoecious +