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Buddleja

(Genus)

Overview

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Shrubs, less often trees, lianas, or suffrutescent herbs. Branches terete, 4-angled, or 4-winged. Leaves opposite, rarely alternate; stipules usually leafy, suborbicular and auriculate or reduced to a transverse line; petiole often short; leaf blade margin entire, crenate, or dentate. Inflorescences terminal and/or axillary, usually many-flowered; bracts mostly leafy; bracteoles resembling sepals. Flowers 4-merous, bisexual or unisexual. Calyx campanulate or subcampanulate, less often cup-shaped or obconical, tube usually longer than lobes. Corolla campanulate, cup-shaped, salverform, or funnel-shaped; tube cylindrical, straight to curved, usually longer than lobes; lobes imbricate, rarely valvate. Stamens inserted on corolla tube, usually included, alternating with corolla lobes; filaments shorter to longer than anthers; anthers introrse, 2-locular, base usually deeply cordate. Ovary 2(--4) -locular, with several to many ovules per locule. Style short to long; stigma often large, clavate, capitate , or less often 2-lobed. Fruit a septicidally 2-valved capsule or in China only Buddleja madagascariensis a berry, many-seeded. Seeds small, often winged; endosperm fleshy; embryo straight.

About 100 species: tropics and subtropics of America, Africa, and Asia; 20 species and five hybrids in China.[1]

Photos

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Taxonomy

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The Genus Buddleja is further organized into finer groupings including:

Footnotes

  1. "Buddleja". in Flora of China Vol. 15 Page 329. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org.

Sources

  • The distribution map on the Distribution tab comes from the Global Biodiversity Information Facility and is used with permission.
  • Photographs on this page are copyrighted by individual photographers, and individual copyrights apply.
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Last Revised: September 22, 2009
2009/09/22 16:41:45