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  Sigesbeckia orientalis
  Citation:  Sigesbeckia orientalis L., Sp. Pl. 900. 1753; Hook. f., Fl. Brit. India 3: 304. 1881; Gamble, Fl. Pres. Madras 704(495). 1921; Manilal, Fl. Silent Valley 158. 1988; Ramach. & V.J. Nair, Fl. Cannanore Dist. 254. 1988; Antony, Syst. Stud. Fl. Kottayam Dist. 219. 1989; Vajr., Fl. Palghat Dist. 254. 1990; M. Mohanan & Henry, Fl. Thiruvanthapuram 266. 1994; H.J. Chowdhery in Hajra et al., Fl. India 12: 407. 1995; Sasidh. et al., Bot. Stud. Med. Pl. Kerala 21. 1996; Sasidh. & Sivar., Fl. Pl. Thrissur For. 253. 1996; Sasidh., Fl. Periyar Tiger Reserve 208. 1998; Sasidh., Fl. Chinnar WLS 170. 1999; Ratheesh Narayanan, Fl. Stud. Wayanad Dist. 478. 2009.
  Malayalam Name(s):
  Tamil name(s):
  English name(s): Sigesbeckia
  Description: Erect subshrubs; stem scabrous and viscid. Leaves 7-15 x 3-10 cm, ovate, acute at apex, cuneate and decurrent at base, pubescent, dentate along the margins; petiole 1-5 cm long. Heads 8 x 4 mm, solitary, terminal, on slender, densely hairy peduncles; bracts biseriate, outer bracts spathulate, 8 mm long, viscid hairy; inner ovate, short. Flowers: outer row ligulate, female, inner bracts rows bisexual, tubular; limb of ligulate corolla 2 mm long, 3-lobed, yellow. Disc florets 2 mm long; anthers bases obtuse. Achenes 4 mm long, curved, truncate at apex, 4-angled; black; pappus absent.
  Habit: Herb
  Flowering & Fruiting: April-December
  District(s): Kottayam, Idukki, Palakkad, Kannur, Thiruvananthapuram, Thrissur, Wayanad
  Medicinal: Yes
  Habitat: Dry and moist deciduous forests
  Distribution: Throughout tropics
  Aquatic: No
  Epiphyte(s): No
  Saprophyte: No
  Stem parasite: No
  Root parasite: No
  Flower colour(s): Yellow
  Weed: Yes
  Monocot/Dicot: Dicotyledonous Plants
  Exotic: No
  Garden: No
  Edible: No
  Vegetable: No
  Endemic to:
  IUCN status:
  Localities: Sholayar, Vanchikulam, Thekkady, Chittaruvi, Nelluyampathy forests, Koomankundu, Pathenthode, Begur, Tolpetty, Munnar, Kathalakandy
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