东京樱花 Prunus × yedoensis

  • Scientific Name: Prunus × yedoensis Matsum. ‘Somei-yoshino’
  • Ref: Jinzô Matsumura, Bot. Mag. Tokyo, 15(174):99–101. 1901
  • Synonym: Cerasus yedoensis
  • English Common Name: Yoshino cherry
  • Chinese Common Name: 东京樱花 Dōngjīng yīnghuā, 日本樱花 Rìběn yīnghuā
  • Japanese Common Name: 染井吉野 (ソメイヨシノ) Somei Yoshino
  • Family: Rosaceae
  • Subfamily: Amygdaloideae
  • Tribe: Amygdaleae
  • Genus: Prunus
  • Subgenus: P. subg. Cerasus
  • Section: P. sect. Cerasus
  • Nothospecies: Prunus × yedoensis
  • Distribution: Cultivated mainly in Beijing, Jiangsu (Nanjing Shi), Jiangxi (Nanchang Shi), and Shandong (Qingdao Shi) [native to Japan and Korea (Cheju Island)].
  • Photo: 03/16/2013
Trees 4–16 m tall. Bark gray. Branchlets pale purplish brown, glabrous; young branchlets green, pilose. Winter buds ovoid, glabrous. Stipules lanceolate, pubescent. Petiole 1-3–1.5 cm, densely pubescent, with or withoug 1 or 2 glands at apex; leaf blade elliptic to obovate, 5–12 × 2.5–7 cm, abaxially pale green and pilose on veins, adaxially dark green, glabrous, base rounded to rarely cuneate, margin sharply glandular serrate, apex acuminate to cuspidate; secondary veins 7–10 on each side of midvein. Inflorescences umbellate-racemose, 3- or 4-flowered; involucral bracts brown, elliptic-ovate, 6–7 × 4–5 mm, pilose on both surfaces; peduncle very short; bracts brown, spatulate-oblong, ca. 5 × 2–3 mm, margin glandular. Flowers opening before leaves, 3–3.5 cm in diam. Pedicel 2–2.5 cm, pubescent. Hypanthium tubular, 7–8 × ca. 3 mm, outside pilose, margin glandular serrate, apex emarginate or 2-lobed. Stamens ca. 32, shorter than petals. Style base pilose. Drupe black, subglobose, 0.7–1 cm in diam.; endocarp slightly sculptured. Fl. Apr, fr. May. 2n = 16. (Flora of China)

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