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Gossypium

(Genus)

Overview

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Herbs annual or perennial, sometimes shrubs; all parts irregularly dotted with dark oil glands. Leaf blades usually palmately 3-9-lobed, rarely entire. Flowers solitary, subterminal. Pedicel not articulated, usually with glands below insertion of epicalyx lobes. Epicalyx lobes 3(-7), foliaceous, glandular, free or connate at base, entire or toothed to deeply laciniate. Calyx cup-shaped, nearly truncate to 5-lobed. Corolla white or yellow, sometimes with purple center, large; petals 5, apex rounded. Staminal column with many anthers along entire length, apex truncate. Ovary 3-5-loculed; ovules 2 to many per locule; style short, rod-shaped, stigma clavate, 5-grooved. Capsule globose or ellipsoid, loculicidally dehiscent. Seeds globose, densely white long woolly, mixed with short hairs or without short hairs.

About 20 species: tropical and subtropical regions; four species (all introduced) in China.[1]

Photos

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Taxonomy

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The Genus Gossypium is further organized into finer groupings including:

Bibliography

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Footnotes

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  1. "Gossypium". in Flora of China Vol. 12 Page 264, 296. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org.

Sources

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Last Revised: January 24, 2010
2010/01/24 08:36:02