Northeastern Asian Flora
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Prunus apetala (Siebold & Zucc.) Franch. & Sav.   (redirected from: Prunus ceraseidos var. piiosa Koidz.)
Family: Rosaceae
[Ceraseidos apetala Siebold & Zucc., moreCerasus apetala , Cerasus apetala var. monticola (Kawas. & H.Koyama) H.Ohba, Cerasus apetala var. pilosa (Koidz.) H.Ohba, Cerasus apetala var. tetsuyae H.Ohba, Prunus apetala subsp. pilosa (Koidz.) H.Ohba, Prunus apetala var. pilosa (Koidz.) E.H.Wilson, Prunus ceraseidos var. piiosa Koidz., Prunus crenata Koehne, Prunus matsumurana Koehne]
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  • Japan Flora
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Japan Flora: Small tree with glabrescent or pilose branchlets; leaves obovate or cuneate-obovate, 5-8 cm. long, 3-5 cm. wide, caudate!y acuminate, spreading-pilose on both sides especially on nerves beneath, dull, with short, rather obtuse to acute coarse double teeth, the petioles 3-8 mm. long, spreading- pilose; flowers 1-3, in sessile umbels, nodding, small, pink to nearly white; calyx-tube slender, 7-10 mm. long, prominently pubescent, 3-4 times as long as the ovate lobes; petals 5-8 mm. long, retuse; style with a few spreading hairs on the lower part.  Apr. Low mountains.

Honshu, Kyushu.

var. pilosa (Koidz,) Wils. Less prominently hairy on all parts; leaves acutely toothed, the petioles 6-10 mm. long; flowers larger; calyx-tube 2 or 3 times as long as the lobes; petals 8-12 mm. long; style usually gla­brous.  Mountain form especially abundant on the Japan Sea side of Honshu (centr. distr. and northw.).  Grades into the typical phase.

Prunus apetala
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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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