Ceanothus impressus var. impressus

Common names: Santa Barbara ceanothus
Endemic
Treatment appears in FNA Volume 12. Treatment on page 91. Mentioned on page 92.

Shrubs, ± compact, intricately branched, 0.5–1.5 m. Leaf-blades strongly cupped, oblong to elliptic, 5–11 (–14) × 2.5–8 (–12) mm, margins strongly revolute, teeth not evident adaxially; veins deeply furrowed. 2n = 24.


Phenology: Flowering Feb–Apr.
Habitat: Open sites, chaparral, pine forests.
Elevation: 50–300 m.

Discussion

Variety impressus is restricted to coastal sites in southwestern San Luis Obispo and western Santa Barbara counties.

Selected References

None.

Lower Taxa

None.

"thin" is not a number.

dark +  and medium green +
perigynous +  and epigynous +
Obtuse (?) +  and Rounded (?) +
Clifford L. Schmidt† +  and Dieter H. Wilken +
Trelease +
rounded +
3-veined +  and veined +
2 cm20 mm <br />0.02 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
1.7 cm17 mm <br />0.017 m <br /> (2 cm20 mm <br />0.02 m <br />) +
not gland-dotted +
0.5 cm5 mm <br />0.005 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 +
suborbiculate;elliptic;suborbiculate;elliptic;oblong +
2.5mm;17mm +
not thorn-tipped +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Santa Barbara ceanothus +
50–300 m. +
Open sites, chaparral, pine forests. +
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 +
1.2 cm12 mm <br />0.012 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
1.1 cm11 mm <br />0.011 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
deciduous +  and persistent +
intrastaminal +
superior +  and inferior +
not fleshy +
perigynous +  and epigynous +
adnate +  and distinct +
6 +  and 5 +
Clawed (?) +, Obovate (?) +  and Spatulate (?) +
0 cm0 mm <br />0 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Flowering Feb–Apr. +
2-4-carpellate +
Proc. Calif. Acad. Sci., ser. +
pink +, usually white +  and cream blue or purple +
distinct +
spreading +  and incurved +
6 +  and 5 +
keeled;lanceolate;deltate +
not rooting +
3-veined +  and veined +
Ceanothus impressus var. impressus +
Ceanothus impressus +
variety +
paniclelike +  and racemelike +
gland-tipped +
crested +
polygamous +, dioecious +  and synoecious +