Ceanothus prostratus var. prostratus

Common names: Mahala mat
IllustratedEndemic
Synonyms: Ceanothus prostratus var. laxus Jepson
Treatment appears in FNA Volume 12. Treatment on page 104.

Shrubs, 0.1–0.2 m, matlike. Stems prostrate, with short erect shoots. Leaf-blades flat, margins not wavy, teeth usually 3–5 (–7). Capsule horns erect, rugose.


Phenology: Flowering Apr–Jun.
Habitat: Sandy or gravelly soils, open flats, gentle slopes, conifer forests.
Elevation: 400–2700 m.

Distribution

V12 580-distribution-map.jpg

Calif., Idaho, Nev., Oreg., Wash.

Discussion

Variety prostratus often forms mats one to two and half meters wide.

Selected References

None.

Lower Taxa

None.

"thick" is not a number.

perigynous +  and epigynous +
Clifford L. Schmidt† +  and Dieter H. Wilken +
Bentham +
cuneate +
Ceanothus sect. Cerastes +
3-veined +  and veined +
not gland-dotted +
0.6 cm6 mm <br />0.006 m <br /> (3 cm30 mm <br />0.03 m <br />) +
3[-5]-veined +  and pinnate +
spinulose +, spinose +, serrate +  and entire +
denticulate +, dentate +, crenulate +, crenate +  and serrulate +
elliptic;obovate +
4mm;16mm +
not thorn-tipped +
glabrescent +  and puberulent +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Mahala mat +
Calif. +, Idaho +, Nev. +, Oreg. +  and Wash. +
400–2700 m. +
Sandy or gravelly soils, open flats, gentle slopes, conifer forests. +
spreading +  and erect +
subapical +
not +  and rugose +
free +  and adnate +
0 cm0 mm <br />0 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
unisexual +  and bisexual +
0.9 cm9 mm <br />0.009 m <br /> (2 cm20 mm <br />0.02 m <br />) +
deciduous +  and persistent +
usually longer +
not wavy +
dentate to spinose-dentate +
pale;deep blue or purplish 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 Apr–Jun. +
2-4-carpellate +
Pl. Hartw., +
intermediate +
pink +, usually white +  and cream blue or purple +
distinct +
spreading +  and incurved +
6 +  and 5 +
keeled;lanceolate;deltate +
Illustrated +  and Endemic +
ascending +, spreading +  and prostrate +
Ceanothus prostratus var. laxus +
Ceanothus prostratus var. prostratus +
Ceanothus prostratus +
variety +
paniclelike +  and racemelike +
not gland-tipped +
smooth +  and rugulose +
strigillose +
unarmed +  and armed +
shrub +  and matlike +
polygamous +, dioecious +  and synoecious +