(Last Modified On 5/8/2013)
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(Last Modified On 5/8/2013)
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Genus
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Ceanothus L.
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PlaceOfPublication
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Sp. PI. 195. 1753.
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Description
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Shrubs, rarely small trees, unarmed or spinescent, deciduous or evergreen. Leaves alternate or opposite, 3-nerved from the base or pinnately-veined, the margins entire or dentate; stipules small and deciduous or corky and persistent. Inflorescences racemes or panicles, or flowers solitary, terminal and/or axillary, pedunculate. Flowers bisexual, floral tube cupulate; sepals 5(-6-8), pelatoid, adnate basally to the floral tube; petals 5(-6-8), clawed and hooded, longer than the sepals; stamens 5(-6-8), exserted; disc nectariferous, surrounding the ovary; ovary semi-inferior, 3-locular, the style 1, the stigmata 3. Fruit a drupe, mostly 3-lobed, adnate basally to the floral tube, separating at maturity into 3 pyrenes; seeds 3, smooth, wedge-shaped.
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Habit
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Shrubs trees
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Distribution
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A genus of 55 species confined to the continent of North America. One species ranges as far south as Panama.
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Reference
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Van Rensselaer, M. & H. McMinn. Ceanothus. Santa Barbara Botanic Garden, Santa Barbara, Calif. 1942.
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