Ceanothus crassifolius var. planus

Abrams

Bull. New York Bot. Gard. 6: 415. 1910.

Endemic
Treatment appears in FNA Volume 12. Treatment on page 99. Mentioned on page 98.

Leaf-blades 12–20 (–27) × 8–15 (–23) mm, margins entire to weakly denticulate, thick to weakly revolute, abaxial surface sparsely tomentulose to glabrate, veins evident. Capsules 6–9 mm wide.


Phenology: Flowering Jan–Apr.
Habitat: Ridges, slopes, chaparral.
Elevation: 200–1200 m.

Discussion

Variety planus is restricted to coastal slopes of San Luis Obispo County and the western Transverse Ranges in Santa Barbara, Ventura, and western Los Angeles counties. Reports of var. planus from the outer Peninsular Ranges may be based on hybrids between var. crassifolius and Ceanothus cuneatus (M. Van Rensselaer and H. McMinn 1942).

Selected References

None.

Lower Taxa

None.

"thick" is not a number.

pale green +  and white +
sparsely tomentulose +  and glabrate +
perigynous +  and epigynous +
Obtuse (?) +  and Rounded (?) +
Clifford L. Schmidt† +  and Dieter H. Wilken +
Abrams +
obtuse +  and rounded +
Ceanothus sect. Cerastes +
3-veined +  and veined +
elliptic +  and elliptic to widely +
2.5 cm25 mm <br />0.025 m <br /> (3 cm30 mm <br />0.03 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (2.3 cm23 mm <br />0.023 m <br />) +
not gland-dotted +
1.2 cm12 mm <br />0.012 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
3[-5]-veined +  and pinnate +
spinulose +, spinose +, serrate +  and entire +
denticulate +, dentate +, crenulate +, crenate +  and serrulate +
8mm;15mm +
not thorn-tipped +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
200–1200 m. +
Ridges, slopes, chaparral. +
straight +
glabrescent +
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 +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
2 cm20 mm <br />0.02 m <br /> (2.7 cm27 mm <br />0.027 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (2.3 cm23 mm <br />0.023 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
deciduous +  and persistent +
entire;denticulate +
entire;weakly denticulate +
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 Jan–Apr. +
2-4-carpellate +
Bull. New York Bot. Gard. +
intermediate +
distinct +
spreading +  and incurved +
6 +  and 5 +
keeled;lanceolate;deltate +
not rooting +
Ceanothus crassifolius var. planus +
Ceanothus crassifolius +
variety +
paniclelike +  and racemelike +
not gland-tipped +
unarmed +  and armed +
polygamous +, dioecious +  and synoecious +