Ceanothus sanguineus

Pursh

Fl. Amer. Sept. 1: 167. 1813.

Common names: Redstem ceanothus
Endemic
Synonyms: Ceanothus oreganus Nuttall
Treatment appears in FNA Volume 12. Treatment on page 83. Mentioned on page 81, 82.

Shrubs, deciduous, 1–2.5 m. Stems erect to ascending, not rooting at nodes; branchlets greenish to reddish brown, not thorn-tipped, round in cross section, flexible to ± rigid, puberulent, glabrescent. Leaves: petiole 6–25 mm; blade not aromatic, flat, ovate, ovate-elliptic, or widely elliptic, 25–100 × (17–)20–60 mm, herbaceous, not resinous, base rounded or subcordate, margins serrulate, teeth 50–100+, apex acute to rounded, abaxial surface pale green, glabrous or puberulent, especially on veins, adaxial surface green, dull, glabrate; 3-veined from base. Inflorescences axillary, paniclelike, cylindric, 5–12 cm. Flowers: sepals and petals usually white to cream, sometimes pink-tinged; nectary cream. Capsules 4–5 mm wide, weakly lobed near apex; valves smooth, usually not crested, sometimes weakly crested.


Phenology: Flowering Apr–Jul.
Habitat: Open areas in forests, clear-cuts, rocky hillsides, slopes, prairies, burns.
Elevation: 0–1400 m.

Distribution

V12 944-distribution-map.jpg

B.C., Calif., Idaho, Mich., Mont., Oreg., Wash.

Discussion

Putative hybrids between Ceanothus sanguineus and C. velutinus have been reported from British Columbia and Oregon (H. McMinn 1944). The occurrence of C. sanguineus in the Upper Peninsula of Michigan (Keweenaw County) is a significant disjunction from the nearest locations in western Montana.

Selected References

None.

Lower Taxa

None.
... more about "Ceanothus sanguineus"
Clifford L. Schmidt† +  and Dieter H. Wilken +
Redstem ceanothus +
B.C. +, Calif. +, Idaho +, Mich. +, Mont. +, Oreg. +  and Wash. +
0–1400 m. +
Open areas in forests, clear-cuts, rocky hillsides, slopes, prairies, burns. +
Flowering Apr–Jul. +
Fl. Amer. Sept. +
Ceanothus oreganus +
Ceanothus sanguineus +
Ceanothus subg. Ceanothus +
species +