旱田草 Bonnaya ruellioides

  • Scientific Name: Bonnaya ruellioides (Colsm.) Spreng.
  • Ref: Syst. Veg. 1:41. 1824
  • Synonyms:
    • Henckelia roxburghiana A.Dietr.
    • Bonnaya repens G.Don
    • Bonnaya reptans (Roxb.) Spreng.
    • Ilysanthes reptans (Roxb.) Urb.
    • Ilysanthes reptans (Roxb.) Koord.
    • Lindernia reptans (Spreng.) F.Muell.
    • Lindernia ruellioides (Colsm.) Pennell
    • Gratiola reptans Roxb.
    • Gratiola ruellioides Colsm.
  • Chinese Common Name: 旱田草 hàntián∙cǎo
  • Family: Linderniaceae
  • Genus: Bonnaya
  • Distribution: Grassland, plains, mountain valleys, forests; below 1500 m. Fujian, Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangxi, Sichuan, Taiwan, Yunnan, Zhejiang [Cambodia, India, Indonesia, Japan (Ryukyu Islands), Malaysia, Myanmar, New Guinea, Philippines, Vietnam].
  • Photo: 06/21/2009, South China Botanical Garden, Guangdong
  • Note: cited as Lindernia ruellioides (Colsm.) Pennell in FOC, and Lindernia reptans (Spreng.) F.Muell. in World Checklist of Seed Plants Database 2001
Annuals, 10-15 cm tall. Stolons to 30 cm. Stems rarely erect, usually branched, subglabrous, rooting from nodes. Petiole 0.3-2 cm, distally thicker; leaf blade oblong, elliptic, ovate-oblong, or orbicular, 1-4 X 0.6-2 cm, scabrous pubescent to subglabrous, base subamplexicaul or broadly cuneate, margin above base densely and regularly acute-serrate, apex obtuse to acute. Racemes terminal, 2-10-flowered; bracts lanceolate-linear. Pedicel short, distally gradually thicker, glabrous. Calyx ca. 6 mm, to 1 cm in fruit, base connate; lobes linear-lanceolate, glabrous. Corolla purple-red, 1-1.4 cm; tube 7-9 mm; lower lip 3-lobed, lobes subequal or middle lobe slightly larger than other lobes; upper lip 2-lobed. Fertile stamens 2, posterior, unappendaged; sterile stamens 2, anterior. Stigma flattened. Capsule conical, ca. 2 X as long as persistent calyx. Seeds brown, ellipsoid. Fl. Jun-Sep, fr. Jul-Nov. (Flora of China)

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