Ceanothus maritimus

Hoover

Leafl. W. Bot. 7: 111. 1953.

Common names: Maritime ceanothus
EndemicConservation concern
Treatment appears in FNA Volume 12. Treatment on page 101. Mentioned on page 93, 95.

Shrubs, 0.3–1 m, moundlike. Stems usually prostrate to ascending, rarely erect, sometimes rooting at proximal nodes; branchlets reddish to grayish brown, rigid, smooth to slightly ridged, tomentulose, glabrescent. Leaves not fascicled; petiole 1–2 mm; blade flat or cupped, obovate to oblong-obovate, 8–20 × 4–12 (–15) mm, base cuneate, margins thick to revolute, usually entire, sometimes denticulate near apex, teeth 3–5, apex acute to rounded, truncate, or retuse, abaxial surface grayish green, tomentulose, adaxial surface green, glabrous. Inflorescences axillary, 0.8–1.5 cm. Flowers: sepals and petals pale to deep blue, sometimes tinged with lavender; nectary dark purplish green. Capsules 5–8 mm wide, not to weakly lobed; valves smooth, horns subapical, minute, erect, intermediate ridges absent.


Phenology: Flowering Feb–May.
Habitat: Maritime terraces and bluffs, alluvial or serpentine soils, coastal prairies, open sites in maritime chaparral.
Elevation: 10–60 m.

Discussion

Ceanothus maritimus is restricted to a small area of coastal bluffs in northern San Luis Obispo County, growing in close proximity to another local endemic, C. hearstiorum (subg. Ceanothus).

Selected References

None.

Lower Taxa

None.

"thick" is not a number.

... more about "Ceanothus maritimus"
perigynous +  and epigynous +
Clifford L. Schmidt† +  and Dieter H. Wilken +
Hoover +
cuneate +
Ceanothus sect. Cerastes +
3-veined +  and veined +
1.2 cm12 mm <br />0.012 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
not gland-dotted +
0.8 cm8 mm <br />0.008 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 +
cupped +  and flat +
obovate;oblong-obovate +
4mm;12mm +
not thorn-tipped +
glabrescent +  and tomentulose +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Maritime ceanothus +
10–60 m. +
Maritime terraces and bluffs, alluvial or serpentine soils, coastal prairies, open sites in maritime chaparral. +
subapical +
minute +
free +  and adnate +
0 cm0 mm <br />0 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
unisexual +  and bisexual +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
deciduous +  and persistent +
denticulate +
green;dark purplish +
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 /> (0.2 cm2 mm <br />0.002 m <br />) +
Flowering Feb–May. +
2-4-carpellate +
Leafl. W. Bot. +
intermediate +
tinged with lavender +, pale +  and deep blue +
distinct +
spreading +  and incurved +
6 +  and 5 +
keeled;lanceolate;deltate +
Endemic +  and Conservation concern +
erect +, usually prostrate +  and ascending +
Ceanothus maritimus +
Ceanothus subg. Cerastes +
species +
paniclelike +  and racemelike +
not gland-tipped +
unarmed +  and armed +
polygamous +, dioecious +  and synoecious +