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Bolinas ceanothus, Mason's ceanothus
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coyote ceanothus
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| Shrubs, 0.6–2 m. Stems erect to ascending, not rooting at nodes; branchlets dark brown, rigid, ± tomentulose. |
Shrubs, 1–2 m. Stems erect, not rooting at nodes; branchlets grayish brown, glaucous, rigid, puberulent. |
not fascicled; petiole 1–2 mm; blade flat, usually elliptic or oval, sometimes suborbiculate, 7–21 × 4–13 mm, base rounded to ± cuneate, margins not revolute, denticulate most of length, teeth 9–17, apex obtuse, rounded to truncate, abaxial surface pale green to grayish green, strigose on veins, glabrate, adaxial surface dark green, glabrous. |
not fascicled; petiole 1–3 mm; blade flat or ± cupped, widely elliptic to widely obovate, 11–30 × 7–18 mm, base obtuse to rounded, margins not revolute, usually denticulate, rarely entire, teeth 6–13, apex rounded, abaxial surface pale green, sparsely strigillose between veins, adaxial surface dark green, glabrate. |
axillary, 1–2.5 cm. |
terminal, 1.2–1.5(–2) cm. |
sepals, petals, and nectary deep blue to purple. |
sepals and petals white; nectary dark blue to purple. |
3–4 mm wide, not lobed; valves smooth, horns apical, minute, not rugose, intermediate ridges absent. |
7–9 mm wide, weakly lobed; valves ± smooth, horns subapical, prominent, erect, intermediate ridges absent. |
= 24. |
= 24. |
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| Flowering Feb–Apr. |
Flowering Jan–May. |
| Soils derived from serpentine, chaparral, pine forests. |
Serpentine soils and outcrops, chaparral, pine and oak woodlands. |
| 100–500 m. (300–1600 ft.) |
100–500 m. (300–1600 ft.) |
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CA
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CA |
Ceanothus masonii occurs only at a few localities on Bolinas Ridge, Marin County. With the exception of its leaf morphology, it bears a close resemblance to C. gloriosus var. exaltatus. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Ceanothus ferrisiae, federally listed as endangered, occurs at a few localities in the foothills of the Mount Hamilton Range northeast of Morgan Hill, Santa Clara County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
| FNA vol. 12, p. 103. |
FNA vol. 12, p. 101. |
| Rhamnaceae > Ceanothus > subg. Cerastes |
Rhamnaceae > Ceanothus > subg. Cerastes |
C. americanus, C. arboreus, C. arcuatus, C. confusus, C. cordulatus, C. crassifolius, C. cuneatus, C. cyaneus, C. dentatus, C. divergens, C. diversifolius, C. fendleri, C. ferrisiae, C. foliosus, C. fresnensis, C. gloriosus, C. griseus, C. hearstiorum, C. herbaceus, C. impressus, C. incanus, C. integerrimus, C. jepsonii, C. lemmonii, C. leucodermis, C. maritimus, C. martini, C. megacarpus, C. microphyllus, C. oliganthus, C. ophiochilus, C. otayensis, C. palmeri, C. papillosus, C. parryi, C. parvifolius, C. pauciflorus, C. perplexans, C. pinetorum, C. prostratus, C. pumilus, C. purpureus, C. roderickii, C. sanguineus, C. sonomensis, C. spinosus, C. thyrsiflorus, C. tomentosus, C. velutinus, C. verrucosus |
C. americanus, C. arboreus, C. arcuatus, C. confusus, C. cordulatus, C. crassifolius, C. cuneatus, C. cyaneus, C. dentatus, C. divergens, C. diversifolius, C. fendleri, C. foliosus, C. fresnensis, C. gloriosus, C. griseus, C. hearstiorum, C. herbaceus, C. impressus, C. incanus, C. integerrimus, C. jepsonii, C. lemmonii, C. leucodermis, C. maritimus, C. martini, C. masonii, C. megacarpus, C. microphyllus, C. oliganthus, C. ophiochilus, C. otayensis, C. palmeri, C. papillosus, C. parryi, C. parvifolius, C. pauciflorus, C. perplexans, C. pinetorum, C. prostratus, C. pumilus, C. purpureus, C. roderickii, C. sanguineus, C. sonomensis, C. spinosus, C. thyrsiflorus, C. tomentosus, C. velutinus, C. verrucosus |
| McMinn: Madroño 6: 171. (1942) |
McMinn: Madroño 2: 89. (1933) — (as ferrisae) |
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CA
WildflowerSearch
iNaturalist
USDA Plants Database
