栏目

翅果耳草Hedyotis pterita Bl.

翅果耳草Hedyotis pterita Bl.

别名:鼎湖耳草;泽西草;

科名:茜草科 Rubiaceae

属名:耳草属 Hedyotis

《中国植物志》第71(1)卷076页
  59. 翅果耳草(中国高等植物图鉴)图版14: 7-9
  Hedyotis pterita Bl. Bijdr. 972. 1826; Backer in Backer et Bakh. Fl. Java 2: 284. 1965; 中国高等植物图鉴4: 219, 图5851. 1975. ——Oldenlandia pterita (Bl.) Miq. Fl. Ind. Bat. 2: 193. 1857; Merr. in Philip. Journ. Sci. Bot. 5: 243. 1910. ——Gonotheca blumei DC. Prodr. 4: 429. 1830.——O. alata Hook. f. Fl. Brit. Ind. 3: 70. 1880; Hance in Journ. Bot. 16: 12. 1878; Hemsl. in Journ. Linn. Soc. Bot. 23: 376. 1888; Dunn & Tutch. in Kew Bull. Misc. Inf. Add. Ser. 10: 128. 1912; Pitard in Lecomte, Fl. Cen. Indo-Chine 3: 152. 1923, non. Koeng (Oldenlandia alata Koenig=O. biflora Linn.).
  略粗壮,直立无毛草本,高5-30厘米;嫩枝绿色,肉质,方柱形,老枝近圆柱形,灰色至白色。叶对生,膜质,长圆形或椭圆形,长1-4厘米,宽4-14毫米,顶端短尖或钝,基部楔形,微下延;侧脉柔弱,不明显;叶柄长2-10毫米;托叶膜质,长1-2毫米,鞘状,顶端截平或具小齿。花4数,具短梗,1或4朵簇生于腋生或顶生、长5-15毫米的总花梗上;萼管杯形,具4翅,萼檐裂片卵形,长约1毫米,短尖,具小缘毛;花冠白色,冠管球形,直径约1毫米,外面被柔毛,花冠裂片极狭窄,与冠管等长;雄蕊极小,无花丝;花柱长0.7毫米,柱头浅2裂。果陀螺形,具4翅,长5-8毫米,宽3-5毫米,顶部冠以杯形浅裂的萼檐,果皮膜质;种子极小。花期7-10月。
  产于广东和广西;生于灌木丛中或稍荫蔽的荒地上。国外分布于泰国、马来西亚、印度、越南。

《Flora of China》 Vol. 19 (2011)
Hedyotis pterita  Blume Bijdr. 972. 1826.
翅果耳草   chi guo er cao
Gonotheca blumei Candolle; Hedyotis alata Koenig ex Wight & Arnott; Oldenlandia alata (Koenig ex Wight & Arnott) J. D. Hooker; O. pterita (Blume) Miquel; Thecagonum pteritum (Blume) Babu.
Herbs, annual or perennial, at least weakly erect, to 15(-30) cm tall; stems subterete to 4-angled, sometimes sulcate and/or winged, glabrous. Leaves subsessile to petiolate; petiole to 10 mm, glabrous; blade drying membranous, elliptic-oblong, lanceolate, or elliptic, 1-6 × 0.4-1.5 cm, glabrous, base cuneate to obtuse then often abruptly decurrent, apex acute or obtuse; secondary veins indistinct; stipules fused to petiole bases, triangular, 0.5-2.5 mm, glandular-puberulent to glabrescent, apically truncate or serrulate to prolonged and acute. Inflorescences terminal becoming displaced to pseudoaxillary in upper leaf axils by subsequent stem growth, 1-flowered or 2-8-flowered and cymose to fasciculate, glabrous, subsessile or pedunculate; peduncle to 1.5 cm; bracts reduced, triangular, to 0.3 mm; pedicels to 1.5 mm, winged. Flowers subsessile to shortly pedicellate. Calyx glabrous; hypanthium portion cupular to turbinate, 1-2 mm, with 4 wings to 0.6 mm wide; limb lobed for 1/2-2/3 its length; lobes ovate, ca. 1 mm, reticulately veined, dorsally winged to apex, sometimes ciliolate, acute to acuminate. Corolla white, outside glabrous; tube 1-1.5 mm, barbate in throat; lobes triangular, 1-1.5 mm. Anthers ca. 0.5 mm, included and positioned near base of corolla tube. Fruit capsular, turbinate to ellipsoid, 5-8 × 3-5 mm, glabrous, with 4 wings to 1 mm wide; seeds numerous, ca. 0.5 mm. Fl. Jul-Oct.
Thickets, slightly shaded wastelands. Guangdong, Guangxi [India, Malaysia, Philippines, Thailand, Vietnam].

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