Ceanothus martini

M. E. Jones

Contr. W. Bot. 8: 41. 1898.

Common names: Utah mountain lilac
Endemic
Synonyms: Ceanothus utahensis Eastwood
Treatment appears in FNA Volume 12. Treatment on page 84. Mentioned on page 80, 81.

Shrubs, deciduous, 0.5–1 m. Stems erect, ascending, or spreading, not rooting at nodes; branchlets green to grayish green or brown, not thorn-tipped, glaucous, round in cross-section, flexible or ± rigid, strigillose. Leaves not fascicled; petiole (1–) 3–7 mm; blade flat, widely elliptic to suborbiculate, 12–30 × 8–20 mm, base rounded or ± cuneate, margins entire or serrulate distal to middle, not revolute, teeth 23–41, apex obtuse or rounded, abaxial surface pale green, glabrous or veins puberulent, adaxial surface green, slightly shiny, glabrous, veins strigillose; 3-veined from base. Inflorescences axillary, umbellike or racemelike, 1.5–4 cm. Flowers: sepals and petals white; nectary pale-yellow to yellow-green. Capsules 4–5 mm wide, lobed; valves smooth or ± rugulose, crested.


Phenology: Flowering May–Jul.
Habitat: Rocky soils, shrublands, pine-oak and pinyon pine-juniper woodlands, open sites in conifer forests.
Elevation: 1800–3200 m.

Distribution

V12 881-distribution-map.jpg

Ariz., Colo., Nev., Utah, Wyo.

Discussion

Leaves of Ceanothus martini are similar to those of C. ×lorenzenii and small-leaved forms of C. velutinus, with which it has sometimes been confused.

Selected References

None.

Lower Taxa

None.

"thin" is not a number.

... more about "Ceanothus martini"
perigynous +  and epigynous +
Rounded (?) +  and Obtuse (?) +
Clifford L. Schmidt† +  and Dieter H. Wilken +
M. E. Jones +
cuneate +  and rounded +
3-veined +  and veined +
not gland-dotted +
1.2 cm12 mm <br />0.012 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 +
widely elliptic;suborbiculate +
8mm;20mm +
not thorn-tipped +
strigillose +  and glaucous +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Utah mountain lilac +
Ariz. +, Colo. +, Nev. +, Utah +  and Wyo. +
1800–3200 m. +
Rocky soils, shrublands, pine-oak and pinyon pine-juniper woodlands, open sites in conifer forests. +
free +  and adnate +
0 cm0 mm <br />0 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
unisexual +  and bisexual +
racemelike +  and umbel-like +
1.5 cm15 mm <br />0.015 m <br /> (4 cm40 mm <br />0.04 m <br />) +
deciduous +  and persistent +
distal +  and middle +
pale-yellow;yellow-green +
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 />) +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Flowering May–Jul. +
2-4-carpellate +
Contr. W. Bot. +
distinct +
spreading +  and incurved +
6 +  and 5 +
keeled;lanceolate;deltate +
not rooting +
spreading +, ascending +  and erect +
3-veined +  and veined +
Ceanothus utahensis +
Ceanothus martini +
Ceanothus subg. Ceanothus +
species +
paniclelike +  and racemelike +
gland-tipped +
rugulose +  and smooth +
crested +
strigillose +  and puberulent +
unarmed +  and armed +
polygamous +, dioecious +  and synoecious +