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Dinghushan | Family List | Bombacaceae | Bombax

Bombax ceiba L.

木棉

Description from Flora of China

Bombax malabaricum Candolle; Gossampinus malabarica (Candolle) Merrill; Salmalia malabarica (Candolle) Schott & Endlicher.

Trees to 25 m tall; trunk buttressed, usually very spiny on young trees; bark gray-white; branches spreading. Stipules minute; petiole 10-20 cm; leaflets 5-7, petiolules 1.5-4 cm; blades oblong to oblong-lanceolate, 10-16 × 3.5-5.5 cm, glabrous, lateral veins 15-17 on each side of midrib, ascending, base broad or tapering, apex acuminate. Flowers solitary, terminal, ca. 10 cm in diam. Calyx cup-shaped, 2-3(-4.5) cm, abaxially glabrous, adaxially densely yellowish sericeous, calyx lobes 3-5, semi-orbicular, ca. 1.5 × 2.3 cm. Petals usually red, sometimes orange-red, obovate-oblong, 8-10 × 3-4 cm, fleshy, both surfaces stellate puberulent, but sparser adaxially. Filament tube short, filaments thicker at base than apex, outer series in 5 fascicles, each with more than 10 stamens, inner series bifid, central filaments with 10 stamens shorter, entire. Capsule ellipsoid, 10-15 × 4.5-5 cm, densely gray-white villous and stellate puberulent. Seeds many, obovate, smooth. Fl. Mar-Apr, fr. summer.

Bombax ceiba was formerly cultivated for its seed floss (kapok), which is of lower quality than that from Ceiba pentandra. Bombax ceiba var. leiocarpum A. Robyns, distinguished by the glabrous ovary and fruit, is found in N Australia.

Hot dry river valleys, savanna; below 1400 m. Fujian, Guangdong, Guangxi, Guizhou, Hainan, Jiangxi, Sichuan, Taiwan, Yunnan [Bangladesh, Bhutan, India, Indonesia, Laos, Malaysia, Myanmar, Nepal, Papua New Guinea, Philippines, Sri Lanka; introduced elsewhere].

生活型: 乔木

栽培植物: 栽培

特征: 落叶大乔木;

花期: 3

果期: 5

生境: 栽培

用途: 庭园、行道树种;木材可作蒸笼、包装箱、火柴杆、造纸等用;鲜枝能搅浊水澄清;根、皮代海桐皮用,治痢疾及月经过多;果内绵毛可作枕、褥垫、救生圈等填充材料;种子油供工业用

门中名: 种子植物门

亚门中名: 被子植物亚门

纲中名: 双子叶植物纲

中文别名: 红棉、英雄树


 

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