Northeastern Asian Flora
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Pterostyrax corymbosus Siebold & Zucc.  
Family: Styracaceae
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  • Japan Flora
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Japan Flora: Small much branched tree with gray-brown branches, loosely appressed stellate-hairy while young; leaves elliptic, or sometimes broadly ovate or broadly obovate, rarely oblong, 7-13 cm. long, 4-8 cm. wide, abruptly acute, rounded or sometimes broadly cuneate at base, minutely toothed or subentire, loosely appressed-stellate hairy on both sides, the petioles 1-3 cm. long; panicles nod­ding, 8-12 cm. long, white stellate-hairy; flowers white, sub- sessile, pendulous; calyx-teeth elongate-deltoid; corolla white, 8-10 mm. long, semi-expanding, the petals broadly oblanceo­late; stamens tubular-connate, the longer ones alternate with the shorter; fruit obovoid, 8-12 mm. long, 5-winged, stellate- hairy and villous, the style base persistent. May-June. Mountains.

Honshu (Kinki Distr. and westw.), Shikoku, Kyu­shu. China,

Pterostyrax corymbosus
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Development supported by College of Agriculture and Life Sciences of Seoul
National University and Korea National Arboretum of Korea Forest Service.
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