匍匐露珠草查看源代码讨论查看历史
| 匍匐露珠草 |
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中文学名:匍匐露珠草 拉丁学名:Circaea repens Wallich ex Asch. et Magnus 别 称:匍茎谷蓼 界:植物界 门:被子植物门 科:柳叶菜科 属:露珠草属 |
匍匐露珠草形态特征
匍匐露珠草 的植株高15-100厘米，被镰状毛，花序被头状和棒状的腺毛；根状茎入秋时顶端具块茎状加厚，次年新植物由此长出。叶狭卵形至阔卵形，稀近圆形，长1.8-9厘米，宽1.5-5厘米，基部圆形、阔楔形或心形，先端急尖至短渐尖，边缘具锯齿；叶柄长1.5-5.5厘米。
花序单总状花序或具分枝；有时上部侧生小枝先端具总状花序。花梗与花序轴垂直或略呈上升状，被具柄的腺毛，基部有时着生极小的小苞片。
花芽疏被毛稀无毛；花管长0.4-0.8毫米；萼片白色，绿色或淡红色，矩圆状椭圆形至卵形，长1.8-2.5毫米，宽1.1-1.5毫米，先端钝圆或急尖，平伸至反曲。
花瓣白色或粉红色，轮廊呈阔倒三角形至狭倒三角形，长1.4-2.3毫米，宽1.3-2（-2.9)毫米，先端具V形凹缺，凹缺深达花瓣长度的3/4；雄蕊与花柱等长或短于花柱；蜜腺不明显，藏于花管中。
成熟果实长3.5-4.2毫米，径0.9-1.6毫米，狭棒状至阔棒状，基部平滑地渐狭至果梗，单室具1种子，纵沟不明显，但具1浅槽，成熟果实连果梗长7.5-15毫米。[2]
花期7-10月，果期7-11月。染色体数n=11。
Circaea repens Wallich ex Asch. & Magnus in Bot. Zeitung (Berlin) 28: 761. 1870; Gagnep. In Bull. Soc. Bot. France Hand.-Mazz., 16: 1916; Hand.-Mazz., Symb. Sin. 7(2): 604. 1933; Hara Boufford in Ann. Missouri Bot. Gard. 69: 896, f. 16. 1982; 西藏植物志 3: 367. 1986; 云南植物志 4: 154. 1986. ——C. repens Wallich, nom. nud., Numer. List, no 6341. ——C. lutetiana auct. non L.: C. B. Clarke in Hook. f., Fl. Brit. India 2: 589. 1879, 1753. ——C. alpina L. var. himalaica C. B. Clarke, in Hook. f., Fl. Brit. India 2: 589. 1879.
Plants 15-100 cm tall, pubescent with falcate hairs, inflorescence with capitate and clavately tipped glandular hairs. Rhizomes with tuberous thickening at apex. Leaves narrowly to broadly ovate, rarely nearly orbicular, 1.8-9 × 1.5-5 cm, base rounded, broadly cuneate, or cordate, margin denticulate, apex acute to shortly acuminate. Inflorescence simple or branched, sometimes also with terminal racemes on upper axillary branches. Flowering pedicels perpendicular to axis of raceme or slightly ascending, with stipitate glandular hairs, with or without a minute bracteole at base. Buds sparsely pubescent, rarely glabrous; floral tube 0.4-0.8 mm. Sepals spreading to reflexed, white, green or reddish tinged, oblong to ovate, 1.8-2.5 × 1.1-1.5 mm, apex gradually rounded to obtuse or acute. Petals white or pink, broadly to narrowly obtriangular in outline, V-shaped, 1.4-2.3 × 1.3-2(-2.9) mm, apical notch 3/4 length of petal. Stamens ca. equal to or shorter than style; nectary inconspicuous, within floral tube. Fruiting pedicel and mature fruit 7.5-15 mm. Fruit narrowly to broadly clavate, 3.5-4.2 × 0.9-1.6 mm, tapering smoothly to pedicel, without prominent ribs and deep sulci, but with a shallow groove representing an extension of pedicel; locule 1, but with trace of a second locule in cross-section. Seed 1. Fl. Jul-Oct, fr. Jul-Nov. 2n = 22.
匍匐露珠草生长环境
生长于海拔1500-3300米的潮湿林中、杂灌丛及空地。 匍匐露珠草
匍匐露珠草分布范围
产自中国湖北西部、四川及云南。缅甸（仅见一号标本）、不丹、尼泊尔、印度北部及巴基斯坦（仅见一号标本）也有分布 。