朝鲜老鹳草查看源代码讨论查看历史
| 朝鲜老鹳草 |
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中文学名:朝鲜老鹳草 拉丁学名:Geranium koreanum Kom. 界:植物界 门:被子植物门 纲:双子叶植物纲 亚 纲:原始花被亚纲 目:牻牛儿苗目 科:牻牛儿苗科 属:老鹳草属 种:朝鲜老鹳草 组:沼生组 |
朝鲜老鹳草（cháo xiān lǎo guàn cǎo，学名：Geranium koreanum）是牻牛儿苗科老鹳草属的植物。分布在朝鲜、俄罗斯远东地区以及中国大陆的辽宁等地，生长于海拔500米至800米的地区，常生长在山地阔叶林下或草甸，目前尚未由人工引种栽培。 [1]
朝鲜老鹳草形态特征
朝鲜老鹳草，多年生草本，高25-50厘米。根状茎短，木质状，被棕色鳞片。
茎单一，通常直立，上部分枝，具钝棱，被稀疏短毛。托叶卵形，草质，渐尖，离生，边缘自膜质，基生叶具长柄，柄长10-25厘米，具槽，下部近无毛，上部具伏毛，叶片5浅裂，基部肾形，背面无毛或仅沿脉稍有伏毛，表面具稀疏伏毛；裂片广卵形，边缘具不整齐的牙齿，短渐尖；茎生叶柄较长，具伏毛，叶片通常3(5)浅裂，裂片急尖，边缘具缺刻状牙齿；茎上部叶具极短柄，3浅裂，中央裂片长，较大。
花序宽，松散，二歧分枝，花序梗细，具短毛，长4-8厘米，具2花，苞2或4。线状锥形，急尖，花梗纤细，具短毛，果期弯曲，花径约2.5厘米；萼片椭圆状长卵形，顶端具芒，边缘膜质，背部具3-5脉，沿脉被短毛，花瓣蔷薇色或淡紫色，比萼片长1倍，倒卵状楔形，基部狭，具白髯毛，顶端全缘，花丝基部扩大部分微具缘毛；花柱长约1毫米，花柱分枝长4-5毫米。
蒴果具短毛，长约2厘米，种子近平滑。 [2]
Geranium koreanum Kom. in Act. Hort. Petrop. 18: 34. 1901, Kom. Fl. Marsh.2 (2): 652. 1904; R. Knuth in Engl. Pflanzenr. Heft 53. 4 (129): 142. 1912; Ohwi. Fl. Jap. 704. 1956, 东北草本植物志 6: 15. 1977; Kitag. Lineam. Fl. Mansh. 418. 1979. ——G. tsingtauense Yabe. Prelim. Rep. Fl. Tsingtau-Reg. 70. 1918. syn. nov. 中国高等植物图鉴2: 527. 图2784. 1972. ——G. lauschanense R. Knuth in Fedde Repert. Sp. Nov. 28: 6. 1930. syn. nov.
Perennials. Rootstock ± vertical, 0.8-1.5 cm in diam., not tuberculate, with thickened roots along rootstock. Stem 30-87 cm tall, erect, not rooting at nodes, with 0.1-1.8 mm retrorse appressed or patent nonglandular trichomes. Stipules broadly ovate, usually connate. Leaves opposite; petiole with 0.2-1.7 mm retrorse appressed or patent nonglandular trichomes; leaf blade 6.3-9.9 cm, palmately cleft, ratio of main sinus/middle segment length = 0.65-0.81, pilose with appressed nonglandular trichomes; segments 5, rhombic, 1.1-2.6 cm wide at base, 8-14-lobed in distal half, ratio of second sinus/middle segment length = (0.08-)0.13-0.15(-0.21). Cymules solitary, 2-flowered; peduncle 2.5-10.3 cm. Pedicel 1.4-3.5 cm, with 0.1-0.6 mm retrorse appressed or patent nonglandular trichomes; bracteoles lanceolate. Sepals 7.4-10.9 mm, mucro 1.3-3.8 mm, ratio of mucro/sepal length = 0.15-0.38, outside with 0.1-0.9 mm antrorse ± appressed nonglandular trichomes, inside glabrous. Petals bright pink, (1.2-)1.3-1.6(-2.1) cm, erect to patent, outside basally with trichomes, inside basal ca. third with trichomes, margin basally ciliate, apex rounded. Staminal filaments pinkish, lanceolate, base slightly dilated, almost glabrous but with scattered 0.1-0.4 mm trichomes; anthers bluish, 1.9-2.8 mm. Nectaries 5, hemispheric, abaxially glabrous, apex with a tuft of trichomes. Stigma dull red. Fruit 2.7-3 cm, erect when immature; mericarps smooth, with a basal callus, with 0.2-0.4 mm ± patent nonglandular trichomes and apically rarely with 0.6-0.8 mm patent glandular trichomes; rostrum 1.7-1.8 cm, with a 2.3-3.3 mm narrowed apex; stigmatic remains 5-6.3 mm. Seeds 2.6-2.9 mm. Fl. Jul-Aug, fr. Aug-Sep. 2n = 28.
朝鲜老鹳草生长环境
生长于阔叶林中。
朝鲜老鹳草分布范围
分布于我国东北南部吉林，朝鲜也有分布。