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光梗阔苞菊Pluchea pteropoda Hemsl.

光梗阔苞菊Pluchea pteropoda Hemsl.

别名:翅烟茜;翼柄阔苞菊;山兰苞菊;

科名:菊科 Compositae

属名:阔苞菊属 Pluchea

《中国植物志》第75卷051页
  1. 光梗阔苞菊(新拟)图版9:6-8
  Pluchea pteropoda Hemsl. in Journ. Linn. Soc. Bot. 23: 422. 1888; Merr. in Lingn. Sci. Journ. 6: 289. 1928; Ling in Contr. Inst. Bot. Nat. Acad. Peiping 2: 474. 1934; Kitam. in Act. Phytotax. et Geobot. 6: 79. 1937.
  草本或矮小亚灌木。茎斜升或平卧,高10-35厘米,基部径约5毫米,多分枝,有明显条纹,无毛,节间长1-2厘米。下部叶无柄,倒卵状长圆形或倒卵状匙形,长2.5-5厘米,宽8-18毫米,基部长渐狭,顶端钝或浑圆,边缘有锯齿,两面无毛,中脉在上面明显,在下面稍凸起,侧脉6-7对,网脉通常不明显;中部和上部叶无柄,倒卵状长圆形或披针形,长1.5-4厘米,宽6-14毫米,基部长狭,顶端钝,边缘有疏锯齿或有时浅裂。头状花序多数,径8-10毫米,在茎枝顶端排列成伞房花序;花序梗较粗,长2-6毫米;总苞卵状球形或阔钟形;总苞片5-6层,外层卵形或阔卵形,长3-4毫米,顶端短尖或钝,背面无毛,内层及中层狭,线形,长4-6毫米,顶端尖,无毛。雌花多数,丝状,长约4毫米,檐部3-4齿裂。两性花少数,花冠管状,长5-6毫米,檐部扩大,顶端5浅裂,裂片背面具泡状或乳头状突起。瘦果圆柱形,具4棱,长1.2-1.8毫米,被疏毛。冠毛白色,宿存,约与花冠等长,两性花的冠毛下部多少联合。花期5-12月。
  产我国台湾和南部各省及沿海一些岛屿。生于海滨沙地、石缝或潮水能到达之地。中南半岛有分布。模式标本采自广西北海。
形态特征:草本或矮小亚灌木。茎斜升或平卧,高10—35厘米,基部径约5毫米,多分枝,有明显条纹,无毛,节间长1—2厘米。下部叶无柄,倒卵状长圆形或倒卵状匙形,长2.5—5厘米,宽8—18毫米,基部长渐狭,顶端钝或浑圆,边缘有锯齿,两面无毛,中脉在上面明显,在下面稍凸起,侧脉6—7对,网脉通常不明显;中部和上部叶无柄,倒卵状长圆形或披针形,长1.5—4厘米,宽6—14毫米,基部长狭,顶端钝,边缘有疏锯齿或有时浅裂。头状花序多数,径8—10毫米,在茎枝顶端排列成伞房花序;花序梗较粗,长2—6毫米;总苞卵状球形或阔钟形;总苞片5—6层,外层卵形或阔卵形,长3—4毫米,顶端短尖或钝,背面无毛,内层及中层狭,线形,长4—6毫米,顶端尖,无毛。雌花多数,丝状,长约4毫米,檐部3-4齿裂。两性花少数,花冠管状,长5-6毫米,檐部扩大,顶端5浅裂,裂片背面具泡状或乳头状突起。瘦果圆柱形,具4棱,长1.2—1.8毫米,被疏毛。冠毛白色,宿存,约与花冠等长,两性花的冠毛下部多少联合。花期5—12月。
产地分布:产我国台湾和南部各省及沿海一些岛屿。生于海滨沙地、石缝或潮水能到达之地。中南半岛有分布。模式标本采自广西北海。
参考文献:Pluchea pteropoda Hemsl.In Journ.Linn.Soc.Bot。23:422.1888; Merr.In Lingn。Sci.Journ.6:289.1928;Ling in Contr.Inst.Bot. Nat. Acad.Peiping 2:474.1934;Kitam.In Act.Phytotax.Et Geobot.6: 79. 1937.

《Flora of China》 Vol. 20-21 (2011)
1. Pluchea pteropoda Hemsley ex Forbes & Hemsley, J. Linn. Soc., Bot. 23: 422. 1888.
光梗阔苞菊 guang geng kuo bao ju
Herbs or subshrubs, procumbent to ascending. Stems well branched, sulcate-striate, glabrous, rarely sparingly puberulent. Leaves sessile, obovate to oblanceolate, 3-5 × 0.7-1.7 cm, glabrous on both surfaces, base gradually narrowed, margin irregularly and sparsely dentate, apex obtuse to rounded; upper leaves smaller and narrower. Capitula 6-8 mm in diam. when fresh, to 10 mm in diam. when dried, ca. 7 mm, shortly pedunculate or sessile, densely congested in terminal corymbs. Involucre ovoid to broadly campanulate; phyllaries 5- or 6-seriate, glabrous, outer ones broadly ovate, 2.5-4 × 2-3 mm, subentire, apex obtuse to rounded, inner linear to lanceolate, 4-5 × 0.5-1 mm, margin subentire, apex acute. Receptacle flat, foveolate. Marginal florets numerous; corolla filiform, narrowed apically, 3.5-4 mm, glandular; achenes reddish brown, with pale ribs, cylindric, 1-1.4 × 0.2-0.3 mm, appressed strigillose and glandular; pappus nearly as long as corolla. Central florets 18-22; corolla 4-5 mm, 5-lobed, lobes triangular, glandular; achenes yellowish, cylindric, grooved, 0.8-1.2 × 0.4-0.5 mm, strigillose; pappus shorter than corolla. 2n = 40.Coastal brackish areas and tidal flats, often associated with mangroves and near graveyards on seashores. Guangdong, Guangxi, Hainan, Taiwan [Vietnam].

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