foc
《中国植物志》英文修订版
Flora of China
  FOC Vol.19 (2011)              | Family List  Berberidaceae  PDF Mahonia  PDF   |  eFloras.org Link Font:+ Big | - Small
   29. Mahonia japonica  (Thunberg) Candolle Syst. Nat. 2: 22. 1821.
台湾十大功劳   tai wan shi da gong lao
  

Ilex japonica Thunberg in Murray, Syst. Veg., ed. 14, 168. 1784; Berberis japonica (Thunberg) R. Brown; B. japonica var. gracillima (Fedde) Rehder; B. tikushiensis (Hayata) Laferrière; Mahonia japonica var. gracillima Fedde; M. tikushiensis Hayata.

  

Shrubs, ca. 1 m tall. Leaves abaxially pale green, adaxially deep green, oblong, 15-27 × 5-10 cm, with 4-6 pairs of sessile leaflets, lowest pair ca. 0.5 cm above base of petiole, abaxially not pruinose, with branched raised venation; rachis 2-3 mm in diam.; internodes 2-4 cm, decreasing in length upward; leaflets ovate, lowest 1.8-2.7 × 1.2-2 cm, becoming larger upward, 3.5-7 × 2-4 cm, base oblique and ± cordate, margin with 2-4 teeth on proximal side, 3-7 teeth on distal margin, apex acute; terminal leaflet larger, ± cordate at base, petiolule 1-2 cm. Inflorescence 5-10-fascicled drooping racemes, 5-10 cm; bracts of inflorescence ovate to ovate-lanceolate, 0.8-1.5 cm × 4-7 mm, apically acuminate. Pedicel 6-7 mm; floral bracts ovate, 3.5-4 × 2-2.5 mm, apex obtuse. Sepals yellow; outer sepals ovate, 2.5-2.7 × 2.2-2.3 mm, apically obtuse; median sepals broadly obovate, 3.3-3.5 × 2.8-2.9 mm; inner sepals obovate-oblong, 6-6.4 × 3.4-3.5 mm. Petals elliptic, 5.5-6 × 2.5-2.6 mm, base with distinct glands, apex emarginate. Stamens ca. 3.3 mm; anther connective slightly prolonged, rounded. Ovary ca. 3.4 mm; ovules 4-7. Berry dark purple, ± pruinose, ovoid, ca. 8 × 4 mm; style persistent and short, or not persistent. Fl. Dec-Apr, fr. Apr-Aug. 2n = 28*.

● Forests, thickets; 800-3400 m. Taiwan.

This species is cultivated extensively in Japan and sporadically in the warmer parts of Europe and the United States.

This species is cultivated extensively in Japan and sporadically in the warmer parts of Europe and the United States.