Ceanothus fendleri |
Ceanothus sanguineus |
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Fendler buckbrush, Fendler's ceanothus |
Oregon tea tree, red-stem ceanothus |
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Habit | 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. | 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 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). |
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 | terminal or axillary, usually umbel-like, sometimes racemelike, 1–3.5 cm. |
axillary, paniclelike, cylindric, 5–12 cm. |
Flowers | sepals, petals, and nectary white or pinkish. |
sepals and petals usually white to cream, sometimes pink-tinged; nectary cream. |
Capsules | 4–6 mm wide, lobed; valves smooth to rugose, viscid, usually not crested, sometimes weakly crested. |
4–5 mm wide, weakly lobed near apex; valves smooth, usually not crested, sometimes weakly crested. |
Ceanothus fendleri |
Ceanothus sanguineus |
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Phenology | Flowering Jan–Jul. | Flowering Apr–Jul. |
Habitat | Rocky soils, slopes, open sites, chaparral, oak-pine woodlands, conifer forests. | Open areas in forests, clear-cuts, rocky hillsides, slopes, prairies, burns. |
Elevation | 1400–2700 m. (4600–8900 ft.) | 0–1400 m. (0–4600 ft.) |
Distribution |
AZ; CO; NM; SD; TX; UT; WY; Mexico (Chihuahua, Coahuila, Sonora)
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CA; ID; MI; MT; OR; WA; BC
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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. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 12, p. 87. | FNA vol. 12, p. 83. |
Parent taxa | Rhamnaceae > Ceanothus > subg. Ceanothus | Rhamnaceae > Ceanothus > subg. Ceanothus |
Sibling taxa | ||
Synonyms | C. fendleri var. venosus, C. fendleri var. viridis | C. oreganus |
Name authority | A. Gray: Mem. Amer. Acad. Arts, n. s. 4: 29. (1849) | Pursh: Fl. Amer. Sept. 1: 167. (1813) |
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