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Dinghushan | Family List | Ulmaceae | Trema

Trema angustifolia (Planch.) Bl.

狭叶山黄麻

Description from Flora of China

Sponia angustifolia Planchon, Ann. Sci. Nat., Bot., sér. 3, 10: 326. 1848; Celtis angustifolia Lindley; S. sampsonii Hance; Trema lanceolata Merrill; T. sampsonii (Hance) Merrill & Chun.

Shrubs or small trees to 7 m tall, dioecious or monoecious. Branchlets slender, reddish purple, gray when dry, densely hirsute. Stipules filiform, to 3 mm. Petiole 2-5 mm, densely hirsute; leaf blade lanceolate to narrowly lanceolate, 3-7 × 1-2 cm, papery to somewhat leathery, abaxially grayish white when dry, surface completely hidden by tomentose hairs, and with inconspicuous rust-colored glandular hairs on veins, adaxially dark green, very scabrous, and blackening when dry, base rounded to rarely ± cordate, margin denticulate, apex acuminate to caudate-acuminate; basally 3-veined; secondary veins 2-5 on each side of midvein. Flowers unisexual, clustered in cymelets as long as or longer than petiole. Male flowers: subsessile, ca. 1 mm in diam.; tepals 5, narrowly ovate, incurved, inside densely hirsute. Drupes reddish orange when mature, ± compressed, 1.5-2.5 mm, rugate, glabrous; perianth persistent. Fl. Apr-Jun, fr. Aug-Nov.

The fiber is used for manufacturing paper and textiles and the leaves are used as emery cloth.

Forests or scrub on sunny slopes; 100-1600 m. Guangdong, Guangxi, Hainan, S Yunnan [India, Indonesia, Malaysia, Thailand, Vietnam].

生活型: 乔木, 灌木

栽培植物: 野生

特征: 灌木或小乔木;

花期: 5--6

生境: 见于荒山疏林地

用途: 茎皮纤维供造纸、纺织;根、叶清凉、有止血镇痛之效

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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