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|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Index to accepted names and synonyms:
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|Family: Malvaceae||View Description||Dichotomous Key|
|Genus:||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Habit: Annual to perennial herb, [subshrub to tree], +- gland-dotted. Stem: erect, stellate-hairy to glabrous. Leaf: petioled; blades ovate, palmate-lobed or -parted, entire; generally not much reduced above; stipules prominent or not. Inflorescence: flowers 1 in leaf axils or few clustered on axillary short-shoots; flowering stalks generally < flowers; bractlets 3, conspicuous, green, leaf-like, cordate, generally irregularly toothed or fringed, enclosing flower in bud, persisting in fruit. Flower: calyx fused, tip truncate or 5-toothed; petals cream, yellow, or rose, often with dark spot at base, showy; filament tube 5-toothed at top, anthers scattered entire length; style 1, generally >= filament tube, stigma lobes 3--5, decurrent, generally short or obscure. Fruit: capsule, loculicidal, ovoid, 3--5-chambered, glabrous, generally prominently gland-dotted. Seed: generally > 5 mm, obovoid, angled, generally densely long-hairy [(subglabrous)], hairs generally white [tan].
Species In Genus: 40 species: tropics, subtropics, most Africa, Middle East, Australia, America. Etymology: (Greek: gossypion, cotton; or Arabic: goz or gothn, a soft substance) Note: Gossypium armourianum Kearney (bractlets strap-shaped vs widely cordate-ovate in Gossypium hirsutum), reportedly naturalized in California, in fact only persisting (albeit for at least 70 years) after plantings, and showing "little likelihood of spreading or becoming invasive" (Paul Fryxell, pers. comm.).
eFlora Treatment Author: Paul A. Fryxell
Jepson Online Interchange
Previous taxon: Fremontodendron mexicanum
Next taxon: Gossypium hirsutum
Citation for this treatment: Paul A. Fryxell 2016. Gossypium, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=9065, accessed on May 29, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on May 29, 2016.