討論:密葉唐松草

山羊百科，林文智老師的植物、山岳、攝影紀錄

2. Thalictrum myriophyllum Ohwi in Act. Phytotax. Geobot. 2: 156. 1933; Liu & Hsieh in Fl. Taiwan 2: 510. 1976. 密葉唐松草 Pl.271

Perennial herbs; stems branched or rarely simple, erect, 20-70 cm tall, sparsely velutinous at first, soon glabrous; roots fibrous. Radical and lower leaves long petiole, tetraternate or tetrapinnate to pentaternate, leaflets 81-240, ovate or obovate, sometimes elliptic, chartaceous, 2-8.1 mm long, 1-7 mm broad, base cuneate, obtuse or truncate, sometimes oblique, entire, 3-lobed, dark green and glabrous above, glaucous and sparsely velutinous beneath along venation or glabrous; nerves elevated on both surfaces, margin thickened beneath; petiolulate; petiole base widely sheathing stipules membranaceous. Cauline and upper leaves biternate or triternate, segments sometimes larger than on lower parts. Inflorescence corymbose-paniculate, terminal or lateral. Flowers greenish, pedicel sparsely velutinous; sepals 4, elliptic, 2-3 mm long, 1.3-1.5 mm broad, apex acute or obtuse, dentate, 2 or 3-veined, almost glabrous, caducous; stamens 25-40, 1.8-2.5 mm long, anthers elliptsoid-linear, 0.5-0.8 mm long, filaments linear dilated above, whitish, connective retuse; carpels about 20, glabrous, 1.5-1.7 mm long, sessile. Style persistent, recurved-circinate. Achenes fusiform, glabrous, deeply striate, 2.5-2.8 mm long, sessile.

Endemic. Forests and forest margins and open areas, in the central mountains, Hsuehshan and Yushan above 3,000 m altitudes.

ILAN: Mt. Nanhutashan, Ohwi 4188 (Holotype, KYO!).

7.密葉唐松草　Thalictrum myriophyllum Ohwi

莖高34—70釐米，有稀疏短柔毛，變無毛，分枝。基生葉和莖下部葉有較長柄，為四回三出複葉；葉片長5—10釐米；小葉紙質，小葉卵形、倒卵形或近圓形，長3—8毫米，寬2.5—5毫米，基部楔形或圓形，三淺裂或有時不分裂，裂片全緣，表面無毛，背面有白粉，沿脈有稀疏短毛或變無毛；葉柄長2.4—5.8釐米。莖上部葉較小。花序圓錐狀，有稀疏的花；花梗長達l釐米；萼片約4，綠黃色，脫落，橢圓形，長2—3毫米；雄蕊約25，花藥狹橢圓形，長0.5一O.7毫米，頂端微尖，花絲長2—2.5毫米，上部倒披針形，心皮5—12，無柄。瘦果紡錘形，長2—3毫米，有8條縱肋，宿存花柱稍拳卷。 7月開花。

產臺灣北部南湖大山等地。生海拔3500米一帶山地。