Ceanothus fendleri

A. Gray

Mem. Amer. Acad. Arts, n. s. 4: 29. 1849.

Common names: Fendler’s ceanothus
Synonyms: Ceanothus fendleri var. venosus Trelease C. fendleri var. viridis A. Gray ex Trelease
Treatment appears in FNA Volume 12. Treatment on page 87. Mentioned on page 79, 82.

Shrubs, evergreen, 0.5–1.5 m. Stems erect, ascending, or spreading, rooting at proximal nodes; branchlets green to grayish green, thorn-tipped, round in cross-section, rigid, canescent, often glaucous. Leaves: petiole 1–4 mm; blade flat, elliptic, ovate, or orbiculate, 8–25 (–30) × 3–8 (–14) mm, base cuneate to rounded, margins usually entire, rarely serrulate near apex, teeth 3–7, apex obtuse to rounded, abaxial surface pale green or grayish green and glaucous, appressed-villosulous to tomentulose, especially along veins, adaxial surface dark green, dull, appressed-villosulous or glabrous; 3-veined from base (lateral-veins sometimes obscure). Inflorescences terminal or axillary, usually umbellike, sometimes racemelike, 1–3.5 cm. Flowers: sepals, petals, and nectary white or pinkish. Capsules 4–6 mm wide, lobed; valves smooth to rugose, viscid, usually not crested, sometimes weakly crested.


Phenology: Flowering Jan–Jul.
Habitat: Rocky soils, slopes, open sites, chaparral, oak-pine woodlands, conifer forests.
Elevation: 1400–2700 m.

Distribution

V12 341-distribution-map.jpg

Ariz., Colo., N.Mex., S.Dak., Tex., Utah, Wyo., Mexico (Chihuahua), Mexico (Coahuila), Mexico (Sonora)

Discussion

Plants of Ceanothus fendleri with glabrous leaves found throughout its range have been called var. viridis. The name C. fendleri var. venosus has been applied to plants with widely elliptic, villosulous leaf blades. Such plants are similar to C. buxifolius of northern Mexico (Chihuahua and Sonora), which has glabrous or sparsely puberulent leaf blades and ± persistent glands on denticulate leaf margins. Putative hybrids between C. fendleri and C. herbaceus in the eastern foothills of the Rocky Mountains were named C. ×subsericeus Rydberg.

Selected References

None.

Lower Taxa

None.

"thin" is not a number.

... more about "Ceanothus fendleri"
grayish green +  and pale green +
appressed-villosulous +  and tomentulose +
glabrous +  and appressed-villosulous +
perigynous +  and epigynous +
Obtuse (?) +  and Rounded (?) +
Clifford L. Schmidt† +  and Dieter H. Wilken +
A. Gray +
cuneate +  and rounded +
3-veined +  and veined +
2.5 cm25 mm <br />0.025 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
not gland-dotted +
0.8 cm8 mm <br />0.008 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 +
orbiculate;ovate;orbiculate;ovate;elliptic;flat +
3mm;8mm +
glaucous +  and canescent +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Fendler’s ceanothus +
Ariz. +, Colo. +, N.Mex. +, S.Dak. +, Tex. +, Utah +, Wyo. +, Mexico (Chihuahua) +, Mexico (Coahuila) +  and Mexico (Sonora) +
1400–2700 m. +
Rocky soils, slopes, open sites, chaparral, oak-pine woodlands, conifer forests. +
free +  and adnate +
0 cm0 mm <br />0 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
axillary +  and terminal +
unisexual +  and bisexual +
racemelike +  and umbel-like +
1 cm10 mm <br />0.01 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
deciduous +  and persistent +
serrulate +  and entire +
pinkish;white +
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 /> (0.4 cm4 mm <br />0.004 m <br />) +
Flowering Jan–Jul. +
2-4-carpellate +
Mem. Amer. Acad. Arts, n. s. +
pink +, usually white +  and cream blue or purple +
distinct +
spreading +  and incurved +
6 +  and 5 +
keeled;lanceolate;deltate +
spreading +, ascending +  and erect +
3-veined +  and veined +
Ceanothus fendleri var. venosus +  and C. fendleri var. viridis +
Ceanothus fendleri +
Ceanothus subg. Ceanothus +
species +
paniclelike +  and racemelike +
gland-tipped +
smooth +  and rugose +
crested +
unarmed +  and armed +
polygamous +, dioecious +  and synoecious +