Ginkgo biloba L.
  • Mant. Pl.
  • Ginko


Cite taxon page as 'WFO (2021): Ginkgo biloba L. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000795526. Accessed on: 02 Dec 2021'

General Information

Trees to 40 m tall; trunk to 4 m d.b.h.; bark light gray or grayish brown, longitudinally fissured especially on old trees; crown conical initially, finally broadly ovoid; long branchlets palebrownish yellow initially, finally gray, internodes (1-) 1.5-4 cm; short branchlets blackish gray, with dense, irregularly elliptic leaf scars; winter buds yellowish brown, ovate. Leaves withpetiole (3-)5-8(-10) cm; blade pale green, turning bright yellow in autumn, to 13 × 8(-15) cm on young trees but usually 5-8 cm wide, those on long branchlets divided by a deep, apicalsinus into 2 lobes each further dissected, those on short branchlets with undulate distal and margin notched apex. Pollen cones ivory colored, 1.2-2.2 cm; pollen sacs boat-shaped, withwidely gaping slit. Seeds elliptic, narrowly obovoid, ovoid, or subglobose, 2.5-3.5 × 1.6-2.2 cm; sarcotesta yellow, or orange-yellow glaucous, with rancid odor when ripe; sclerotesta white, with 2 or 3 longitudinal ridges;endotesta pale reddish brown. Pollination Mar-Apr, seed maturity Sep-Oct.

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

    Trees to 30 m. Crown somewhat ovoid to obovoid, tending to be asymmetric, primary branches ascending at ca. 45° from trunk. Long shoots faintly striate; spurs thick, knoblike or to 3 cm, gray, covered with bud-scale scars. Buds brown, globose, scales imbricate, margins scarious. Leaves fan-shaped, glabrous except for tuft of hairs in axils, blades 2--9.5 × 2--12 cm, mostly 1.5 times wider than long, apices cleft to truncate; venation dichotomous, appearing parallel; leaf scars semicircular; petioles channeled on adaxial surface, 2.5--8.5 cm. Seeds obovoid to ellipsoid, yellow to orange, 2.3--2.7 × 1.9--2.3 cm, mostly 1.1--1.2 times longer than broad, glaucous, rugose, with apical scar, maturing in single season, usually 1 per peduncle, occasionally polyembryonic, outer coat foul-smelling; peduncles orange, glaucous, ridged, 3--9.5 cm, collar broadly elliptic, 7.2--8.6 mm broad. 2 n = 24.

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

    Dioecious. Tree up to 30 m tall. Leaves foliaceous with flabellate venation. Male cones on dwarf shoots in catkin‑like clusters; microsophylls stalked. Sporangia usually 2, pendant. Female cone on dwarf shoots. Ovules 2. terminal, usually only I developing into a seed.

  • Provided by: [C].Flora of Pakistan
    • Source: [
    • 3
    • ]. 

    Morphology

    Yaprak döken, genellikle bir eşeyli (iki evcikli), 15-20 m (vatanında 40 m) boyunda ağaçlar. Gövde kabuğu mantarımsı, düzensiz çatlaklı, açık gri veya grimsi kahverengi, özellikle yaşlı ağaçlarda uzunlamasına ince çatlaklı. Tepetacıkonikveyagenişyumurtamsı.Uzunsürgünlerbaşlangıçtakahverengimsisarı,sonradangri;düğümarası(1- )1,5-4 cm. Yapraklar uzun sürgünlerde almaşlı dizilişli, kısa sürgünlerde demetsi; sap dahil (3-)5-8(-13) × 5-8(-15), aya üçgensi, yelpazemsi, lopsuz veya iki loplu; yan kenarlar düz, üst kenar hafif dalgalı; damarlar ikiye çatallanarak yelpazemsi. Erkek kozalaklar salkım halinde, fildişi rengi, yumurtamsı ya da hemen hemen küremsi, 1,2-2,2 cm uzunluğunda. Dişi kozalak saplı, etli, eliptik, dar tersyumurtamsı, yumurtamsı ilâ yarı küremsi, 2,5-3,5 × 1,6-2,2 cm, dış yüzeyi sarı ya da turuncu-sarı ilâ mat yeşil, derimsi; içi pis kokulu, sarı veya portakal ilâ donuk mavimsi yeşil renkte; olgun kozalaklar, yapraklar döküldükten sonra kış boyunca ağaç üzerinde kalır; tohum 2-2,5 cm uzunluğunda, beyaz.

  • Provided by: [E].Resimli Türkiye Florası (the Illustrated Flora of Turkey)
    • Literature

      SELECTED REFERENCES

      Franklin, A. H. 1959. Ginkgo biloba L.: Historical summary and bibliography. Virginia J. Sci., n. s. 10: 131--176.

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

      Nationally Preferred Names

      NameLanguageCountry
      GinkoTurkishTR

      Other Local Names

      NameLanguageCountry
      Maidenhair tree, ginkgo

       Information From

      Flora Of CHina @ efloras.org
      http://www.efloras.org/flora_page.aspx?flora_id=2
      '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.
      • A Missouri Botanical Garden
      Flora of North America @ efloras.org
      http://www.efloras.org/flora_page.aspx?flora_id=1
      '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.
      • B Flora of North America Association
      Flora of Pakistan
      http://www.tropicos.org/Project/Pakistan
      Flora of Pakistan. Missouri Botanical Garden. Accessed on Jun. 2020.
      • C Missouri Botanical Garden
      Ginkgoaceae
      World Flora Online Data. 2017.
      • D CC0 1.0 Universal (CC0 1.0).
      Resimli Türkiye Florası (the Illustrated Flora of Turkey)
      http://www.turkiyeflorasi.org.tr
      Güner, A., Kandemir, A., Menemen, Y., Yıldırım, H., Aslan, S., Ekşi, G., Güner, I. ve Çimen, A.Ö. (edlr.) (2018). Resimli Türkiye Florası, Cilt 2. ANG Vakfı Nezahat Gökyiğit Botanik Bahçesi Yayınları. İstanbul.
      • E All Rights Reserved
      • F Resimli Türkiye Florası (the Illustrated Flora of Turkey).
      World Flora Online consortium
      http://www.worldfloraonline.org/organisation/WFO
      World Flora Online Data. 2018.
      • G CC0 1.0 Universal (CC0 1.0).
      International Union for Conservation of Nature
      https://www.iucn.org/
      IUCN 2016. IUCN Red List of Threatened Species. Version 2016-2
      • H All Rights Reserved
      Global Tree Search
      https://tools.bgci.org/global_tree_search.php
      BGCI. 2018. GlobalTreeSearch online database. Botanic Gardens Conservation International. Richmond, U.K. Available at www.bgci.org. Accessed on 30/11/2018.
      • I Botanic Gardens Conservation International
      International Union for Conservation of Nature v.3
      https://www.iucnredlist.org/
      IUCN 2019. The IUCN Red List of Threatened Species. Version 2019-1.
      • J See IUCN Terms and conditions of use http://www.iucnredlist.org/info/terms-of-use