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Dinghushan | Family List | Caesalpiniaceae | Caesalpinia

Caesalpinia sappan L.

苏木

Description from Flora of China

Trees, small, to 6 m tall, ± puberulent except on old branches and legumes. Branches with dense, conspicuous lenti­cels. Leaves 30-45 cm; pinnae 7-13 pairs, opposite, 8-12 cm; leaflets 10-17 pairs, closely spaced, sessile, oblong to oblong-rhombic, 1-2 cm × 5-7 mm, papery, both surfaces glabrous or sparsely hairy, lateral veins slender, conspicuous on both sur­faces, contiguous near margin, base oblique, inserted at oblique angles to rachis of pinnae, apex retuse or rounded. Panicles ter­minal or axillary, ca. as long as leaves; bracts caducous, lan­ceolate, large. Pedicels ca. 1.5 cm, puberulent. Receptacle shal­lowly campanulate. Sepals 5, slightly unequal, lower one larger than others, cucullate. Petals yellow, broadly obovate, ca. 9 mm, uppermost one entire at apex, tinged pink at base, clawed. Stamens slightly exserted; filaments densely pubescent at lower part. Ovary grayish velutinous, stalked, 3-6-ovuled; style slen­der, hairy; stigma truncate. Legume reddish brown, shiny, slightly compressed, suboblong to oblong-obovoid, ca. 7 × 3.5-4 cm, woody, attenuate to base, apex obliquely truncate, upper margin with a sharp beak. Seeds 3 or 4, light brown, slightly compressed, oblong. Fl. May-Oct, fr. Jul-Mar. 2n = 24.

The heartwood contains a red dye and is used medicinally to re­lieve pain.

Cultivated in Fujian, Guangdong, Guangxi, Guizhou, Hainan, Si­chuan, Taiwan, Yunnan [native origin unknown; Cambodia, India, Laos, Malaysia, Myanmar, Sri Lanka, Vietnam; Africa, America].

生活型: 乔木, 灌木

栽培植物: 野生

特征: 灌木或小乔木;2回偶数羽状复叶,羽片及小叶均对生,小叶偏斜,基部不对称,总叶柄基部有小刺;花黄色

花期: 6

果期: 8

生境: 见于七星岩石掌岩灌丛中

用途: 木材坚重,边材不易扭裂,为小提琴弓的特种用材;心材供药用,治跌打、经闭腹痛、疮痈肿毒,肠炎、痢疾及产后流血过多;枝干可提取红色染料,根可提取黄色染料;耐旱,可作旱地先锋造林树种

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


 

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