Robust, monocarpic, usually rosulate perennials arising from short rhizome or short erect caudex
Stem commonly with monocotyledonous type secondary growth
Leaves usually crowded in basal rosette, leathery to succulent, amplexicaul, persisting for many years; each vascular bundle with well-developed fibrous cap at phloem pole
Inflorescence apical, tall, fast-growing, terminating in a panicle, often massive
Flowers bisexual, regular or somewhat irregular, tubular, pedicellate, trimerous throughout
Perianth petaloid, 3 + 3, often fleshy, united below to form a tube
Stamens 3 + 3; anthers mostly dorsifixed, introrse, versatile, opening by longitudinal slits, linear to oblong
Ovary inferior, trilocular, with septal nectaries; placentation axile; ovules in 2 vertical rows in each locule; style terminal; stigma 3-lobed
Fruit a loculicidal capsule
Seeds many, flattened, centrally embedded in copious, very hard endosperm
x = 30
Nomenclature:
*Agavaceae
Cronquist: 1217 (1981)
Dahlgren et al.: 157 (1985)
Bogler & Simpson: 191 (1995)
Hernández: 57 (1995)
Ojeda Revah & Ludlow-Wiechers: 25 (1995)
Distribution & Notes:
Global: Genera 12, species ± 400, Old and New World tropics and subtropics, widely naturalised
Southern Africa: Genus 1 (*Agave, the largest and most widespread), species 2, naturalised
References:
BOGLER, D.J. & SIMPSON, B.B. 1995. A chloroplast DNA study of the Agavaceae. Systematic Botany 20
CRONQUIST, A. 1981. An integrated system of classification of flowering plants. Columbia University Press, New York
DAHLGREN, R.M.T., CLIFFORD, H.T. & YEO, P.F. 1985. The families of the monocotyledons. Springer-Verlag, Berlin
HERNÁNDEZ, L. 1995. Análisis cladístico de la familia Agavaceae. Boletin de la Sociedad Botánica de México 56
OJEDA REVAH, L. & LUDLOW-WIECHERS, B. 1995. Palinología de Agavaceae, una contribución biosistemática. Boletin de la Sociedad Botánica de México 56
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