锐齿楼梯草Elatostema cyrtandrifolium (Zoll. et Mor.) Miq.
锐齿楼梯草Elatostema cyrtandrifolium (Zoll. et Mor.) Miq.
72. 锐齿楼梯草 图版61: 11-2（见286页）
Elatostema cyrtandrifolium (Zoll. et Mor.) Miq. Pl. Jungh. 21. 1851; Backer et Bakh. f. Fl. Java 2: 44. 1965; Yahara in Journ. Fac. Sci. Univ. Tokyo Ii, 13: 496. 1984. ——Procris cyrtandraefolia Zoll. et Mor. in Mor. Syst. Verz. 74. 1846. ——E. sessile J. R. et G. Forst. var. cyrtandraefolium (Zoll. et Mor.) Wedd. in DC. Prodr. 16 (1): 173. 1869. ——E. sessile var. pubescens Hook. f. Fl. Brit. Ind. 5: 564.1888; Hand. -Mazz. Symb. Sin. 7: 145. 1929. ——E. herbaceifolium Hayata, Ic. Pl. Formos. 6: 57. 1916; T. S. Liu et W. D. Huang in Li, Fl. Taiwan 2: 179, pl. 257.1976; W. T. Wang in Bull. Bot. Lab. N. -E. For. Inst. 7: 67. 1980.
《Flora of China》 Vol. 5 (2003)
Elatostema cyrtandrifolium (Zollinger & Moritzi) Miquel
锐齿楼梯草 rui chi lou ti cao
Herbs perennial, dioecious, 14-70 cm tall. Stems ascending or erect, branched or rarely simple, glabrous, pilose, or densely pubescent. Leaves alternate; nanophylls absent; stipules narrowly lanceolate or subulate, 3-5 × 0.5-1 mm, glabrous, with cystoliths; petiole 0.5-5 mm; leaf blade obliquely elliptic, 5-15 × 2.2-5 cm, herbaceous or membranous, major basal lateral veins both arising at base of leaf blade or 1 arising above base, abaxial surface sparsely puberulent or glabrescent along veins, adaxial surface sparsely strigillose, cystoliths slightly conspicuous, dense; base with broader half broadly cuneate or rounded, margin sharply serrate, apex acuminate or short caudate. Male inflorescences solitary, simple, 6-13 mm in diam.; peduncle ca. 6 mm; receptacle 5-11 mm in diam.; bracts connate, ca. 2.5 mm; bracteoles cymbiform. Female inflorescences solitary or in pairs, 3-12 mm in diam.; peduncle 0.5-2 mm; receptacle 2-10 mm in diam.; bracts ovate; bracteoles spatulate or linear-lanceolate. Male flowers 4-merous. Achenes ovoid or ellipsoid, 6-8-ribbed. Fl. Apr-Oct.
Forests, streamsides; 300-1900 m. Fujian, S Gansu, N Guangdong, N and W Guangxi, Guizhou, W Hubei, Hunan, Jiangxi, Sichuan, Taiwan, SE Yunnan [Bhutan, India, Indonesia, Malaysia, Myanmar].
This species is used medicinally.
别名：台湾楼梯草;钟乳楼梯草;
科名：荨麻科 Urticaceae
属名：楼梯草属 Elatostema
72. 锐齿楼梯草 图版61: 11-2（见286页）
Elatostema cyrtandrifolium (Zoll. et Mor.) Miq. Pl. Jungh. 21. 1851; Backer et Bakh. f. Fl. Java 2: 44. 1965; Yahara in Journ. Fac. Sci. Univ. Tokyo Ii, 13: 496. 1984. ——Procris cyrtandraefolia Zoll. et Mor. in Mor. Syst. Verz. 74. 1846. ——E. sessile J. R. et G. Forst. var. cyrtandraefolium (Zoll. et Mor.) Wedd. in DC. Prodr. 16 (1): 173. 1869. ——E. sessile var. pubescens Hook. f. Fl. Brit. Ind. 5: 564.1888; Hand. -Mazz. Symb. Sin. 7: 145. 1929. ——E. herbaceifolium Hayata, Ic. Pl. Formos. 6: 57. 1916; T. S. Liu et W. D. Huang in Li, Fl. Taiwan 2: 179, pl. 257.1976; W. T. Wang in Bull. Bot. Lab. N. -E. For. Inst. 7: 67. 1980.
《Flora of China》 Vol. 5 (2003)
Elatostema cyrtandrifolium (Zollinger & Moritzi) Miquel
锐齿楼梯草 rui chi lou ti cao
Herbs perennial, dioecious, 14-70 cm tall. Stems ascending or erect, branched or rarely simple, glabrous, pilose, or densely pubescent. Leaves alternate; nanophylls absent; stipules narrowly lanceolate or subulate, 3-5 × 0.5-1 mm, glabrous, with cystoliths; petiole 0.5-5 mm; leaf blade obliquely elliptic, 5-15 × 2.2-5 cm, herbaceous or membranous, major basal lateral veins both arising at base of leaf blade or 1 arising above base, abaxial surface sparsely puberulent or glabrescent along veins, adaxial surface sparsely strigillose, cystoliths slightly conspicuous, dense; base with broader half broadly cuneate or rounded, margin sharply serrate, apex acuminate or short caudate. Male inflorescences solitary, simple, 6-13 mm in diam.; peduncle ca. 6 mm; receptacle 5-11 mm in diam.; bracts connate, ca. 2.5 mm; bracteoles cymbiform. Female inflorescences solitary or in pairs, 3-12 mm in diam.; peduncle 0.5-2 mm; receptacle 2-10 mm in diam.; bracts ovate; bracteoles spatulate or linear-lanceolate. Male flowers 4-merous. Achenes ovoid or ellipsoid, 6-8-ribbed. Fl. Apr-Oct.
Forests, streamsides; 300-1900 m. Fujian, S Gansu, N Guangdong, N and W Guangxi, Guizhou, W Hubei, Hunan, Jiangxi, Sichuan, Taiwan, SE Yunnan [Bhutan, India, Indonesia, Malaysia, Myanmar].
This species is used medicinally.