Fagaceae Dumort.
  • Anal. Fam. Pl. 11, 12. 1829.
  • Beech Family

Cite taxon page as 'WFO (2021): Fagaceae Dumort. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-7000000231. Accessed on: 18 Oct 2021'

General Information

Trees or rarely shrubs, monoecious, evergreen or deciduous. Stipules usually early deciduous. Leaves alternate, sometimes false-whorled in Cyclobalanopsis. Inflorescences unisexual or androgynous with female cupules at the base of an otherwise male inflorescence. Male inflorescences a pendulous head or erect or pendulous catkin, sometimes branched; flowers in dense cymules. Male flower: sepals 4-6(-9), scalelike, connate or distinct; petals absent; filaments filiform; anthers dorsifixed or versatile, opening by longitudinal slits; with or without a rudimentary pistil. Female inflorescences of 1-7 or more flowers subtended individually or collectively by a cupule formed from numerous fused bracts, arranged individually or in small groups along an axis or at base of an androgynous inflorescence or on a separate axis. Female flower: perianth 1-7 or more; pistil 1; ovary inferior, 3-6(-9)-loculed; style and carpels as many as locules; placentation axile; ovules 2 per locule. Fruit a nut. Seed usually solitary by abortion (but may be more than 1 in Castanea, Castanopsis, Fagus, and Formanodendron), without endosperm; embryo large.

  • Provided by: [B].Flora Of CHina @ efloras.org
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    • 1
    • ]. 

    Trees or shrubs , evergreen or deciduous, shrubs sometimes rhizomatous. Winter buds sessile, with few to many imbricate scales (2 valvate scales enclosing imbricate scales in Castanea ); terminal bud present or absent. Leaves alternate, spirally arranged, simple; stipules deciduous (usually), distinct, scarious; petiole present. Leaf blade lobed or unlobed, pinnately veined, margins serrate, dentate, or entire; surfaces usually pubescent, at least when young, sometimes with scales. Inflorescences unisexual or androgynous catkins; staminate and androgynous catkins spicate or capitate, rigid, flexible, or lax, consisting of few- to many-flowered clusters, bracts present or absent; pistillate catkins rigid or flexible, with 1-several spicately arranged, rarely solitary, terminal cupules bearing 1-3(-15 or more) pistillate flowers. Staminate flowers bracteate, bracts often caducous; sepals (3-)4-6(-8); stamens (3-)6-12(-18 or more); petals absent; anthers 2-locular, dehiscing by longitudinal slits, pollen sacs contiguous; pistillode often present and indurate, or vestigial as central tuft of trichomes. Pistillate flowers: calyx of 4-6 distinct or connate sepals; petals absent; pistil 1, 3(-6 or more)-carpellate; ovary inferior, locules as many as carpels; placentation axile; ovules pendulous, 2 in each locule, all but 1 in each pistil usually aborting; styles as many as carpels, distinct to base; stigmas dry; staminodes present or absent. Fruits nuts, sometimes winged, 1-seeded, subtended or enclosed individually or in groups of 2-3(-15) by scaly or spiny, multibracteate cupule; seed coat membranous; endosperm none; embryo straight, as long as seed; cotyledons fleshy, starchy or oily.

  • Provided by: [A].Flora of North America @ efloras.org
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    • 2
    • ]. 



    Elias, T. S. 1971b. The genera of Fagaceae in the southeastern United States. J. Arnold Arbor. 52: 159-195. Fey, B. S. and P. K. Endress. 1983. Development and morphological interpretation of the cupule in Fagaceae. Flora 173: 451-468. Forman, L. L. 1966. On the evolution of cupules in the Fagaceae. Kew Bull. 18: 385-419. Hjelmquist, H. 1948. Studies on the floral morphology and phylogeny of the Amentiferae. Bot. Not., Suppl. 2(1): 1-171. Nixon, K. C. and W. L. Crepet. 1989. Trigonobalanus (Fagaceae): Taxonomic status and phylogenetic relationships. Amer. J. Bot. 76: 828-841. Soepadmo, E. 1972. Fagaceae. In: C. G. G. J. Van Steenis, ed. 1950+. Flora Malesiana.... Series I. Spermatophyta. 11+ vols. in parts. Djakarta and Leiden. Vol. 7, part 2, pp. 265-403.

  • Provided by: [A].Flora of North America @ efloras.org
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    • 2
    • ]. 

    Other Local Names

    Beech Family

     Information From

    Flora of North America @ efloras.org
    'Flora of North America @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=1 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • A Flora of North America Association
    Flora Of CHina @ efloras.org
    'Flora of China @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=2 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • B Missouri Botanical Garden
    World Flora Online Data. 2017.
    • C CC0 1.0 Universal (CC0 1.0).
    World Flora Online consortium
    World Flora Online Data. 2018.
    • D CC0 1.0 Universal (CC0 1.0).