Comments
provided by eFloras
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.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Description
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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.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Habitat & Distribution
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Cultivated in C, NE, and S China [of cultivated origin in SW Asia or Europe].
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Synonym
provided by eFloras
Platanus orientalis Linnaeus var. acerifolia Aiton, Hort. Kew. 3: 364. 1789; P. hybrida Brotero.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA