Platanus acerifolia (Aiton) Willd.
London planetree
Species recognized by The Integrated Taxonomic Information System
, T Orrell (custodian) in 
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General Description
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Source and Additional Information
Supplier
Source
Project
Editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
Location
Source URL
Citation
Flora of China Vol. 9: 44 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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This widely planted tree is either a hybrid between Platanus occidentalis and P. orientalis or a cultivar of P. orientalis; the origin has been much discussed but remains uncertain.
References
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Flora of China @ eFloras.org
http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200005226
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Description
Source and Additional Information
Supplier
Source
Project
Editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
Location
Source URL
Citation
Flora of China Vol. 9: 44 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
Permalink
Copy and paste in email or document
:
Trees deciduous, to 30 m tall. Young branchlets densely gray-yellow tomentose, old ones red-brown, glabrous. Stipules 1–1.5 cm; petiole 3–10 cm, densely yellow-brown pubescent; leaf blade broadly ovate, 12–25 × 10–24 cm, (3 or)5(or 7)-lobed, gray-yellow pubescent on both surfaces when young, glabrate and then pubescent only at vein axils abaxially, principal veins 3(or 5), arising from base or lateral 2(or 4) from midvein above base, base subcordate or truncate; lobes entire or coarsely 1- or 2-dentate at margin; central lobe broadly triangular, as long as wide. Flowers usually 4-merous. Male flowers: sepals ovate, pubescent; petals oblong, ca. 2 × as long as sepals; stamens longer than petals; anther connective peltate, pubescent. Fruiting branchlets with (1 or)2(or 3) infructescences. Infructescence capitate, ca. 2.5 cm in diam. Achenes with persistent style spiniform, 2–3 mm; basal hairs absent or very short, not exserted from infructescence. Fl. Mar–May, fr. Jun–Oct.
References
-
Flora of China @ eFloras.org
http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200005226
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"Platanus acerifolia (Aiton) Willd.". Encyclopedia of Life, available from "http://www.eol.org/pages/468381". Accessed
19 Mar 2010.
