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  Hypericum japonicum
  Citation:  Hypericum japonicum Thunb. ex Murr. in L., Syst. Veg. 702. 1784; Hook. f., Fl. Brit. India 1: 256. 1874; Gamble, Fl. Pres. Madras 70(51). 1915; Manilal, Fl. Silent Valley 18. 1988; Ramach. & V.J. Nair, Fl. Cannanore Dist. 53. 1988; S.N. Biswas in B.D. Sharma & Sanjappa, Fl. India 3: 69. 1993; Sasidh. et al., Bot. Stud. Med. Pl. Kerala 37. 1996; Sasidh., Fl. Shenduruny WLS 29. 1997; Swarup. et al., Shola For. Kerala 53. 1998; Sasidh., Fl. Periyar Tiger Reserve 23. 1998; Sasidh., Fl. Chinnar WLS 29. 1999; Sasidh., Fl. Parambikulam WLS 20. 2002; Anil Kumar et al., Fl. Pathanamthitta 69. 2005; K.Vivek. in P. Daniel, Fl. Kerala 1: 326. 2005; Ratheesh Narayanan, Fl. Stud. Wayanad Dist. 132. 2009.
  Malayalam Name(s):
  Tamil name(s):
  English name(s):
  Description: Erect herbs. Leaves, simple, opposite, decussate, 8-10 x 4 mm, lanceolate, apex acute, base auricled, 3-ribbed, glabrous. Flowers solitary axillary or in terminal cymes; yellow, pedicels 5 mm long. Sepals 3 x 1 mm, oblong, obtuse, many-ribbed. Petals yellow, 4 x 1.5 mm, oblong. Stamens many, free. Ovary 1-celled, ellipsoid, styles 3, 1 mm long. Capsule 3 x 2 mm, smooth; seeds many, 0.5 x 0.3 mm, oblong 7-ribbed.
  Habit: Herb
  Flowering & Fruiting: April-August
  District(s): Palakkad, Idukki, Pathanamthitta, Kannur, Kollam, Wayanad
  Medicinal: Yes
  Habitat: Water logged areas in grasslands and semi-evergreen forests
  Distribution: Indo-Malesia to Australia and New Zealand and East Asia
  Aquatic: No
  Epiphyte(s): No
  Saprophyte: No
  Stem parasite: No
  Root parasite: No
  Flower colour(s): Yellow
  Weed: No
  Monocot/Dicot: Dicotyledonous Plants
  Exotic: No
  Garden: No
  Edible: No
  Vegetable: No
  Endemic to:
  IUCN status:
  Localities: Alvarakurichi, Ichampetty, Pothumala, Thannikkudy, Kavalappara, Karimalagopuram, Sispara, Ponnambalamedu, Chandanathode, Manantody, Santhanpara
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