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  Hibiscus radiatus
 
  Family: MALVACEAE
  Citation:  Hibiscus radiatus Cav., Diss. 3: 150. t.54. f.2. 1787; Hook. f., Fl. Brit. India 1: 335. 1874; T.K. Paul in B.D. Sharma & Sanjappa, Fl. India 3: 327. 1993; Sivar. & Pradeep, Malvac. Southern Peninsular India 112. 1996; M. Mohanan & A.V.N. Rao in P. Daniel, Fl. Kerala 1: 418. 2005. Hibiscus unidens Lindl., Bot. Reg.9. t. 878. 1823. Hibiscus lindleyi Wall., Pl. Asiat. Rar. 1: 4. t.4. 1830. Hibiscus heptaphyllus Dalz. & Gibs., Bombay Fl. 20. 1861. Hibiscus pachmaricus Haines, Bull. Misc. Inform. Kew 1914: 24. 1914.
  Malayalam Name(s):
  Tamil name(s):
  English name(s): Monarch Rosemallow, Ruby Hibiscus
  Description: Erect undershrubs, 1-2 m high; stems occasionally with scattered bulbous-based retrorse prickles and long simple hairs, glabrescent later. Leaves alternate, palmately 3-5 lobed or parted, cordate at base, 2-10 x 2-12 cm; lobes oblong to lanceolate, coarsely serrate-dentate at margin, 4-8 x 1-2.5 cm, glabrous or sparsely hairy on nerves beneath; petioles 2-15 cm long, sparsely aculeate or not, with a strip of short hairs above; stipules lanceolate, ca 1.5 cm long, bristly at margin. Flowers axillary, solitary; pedicels 2-5 mm long, jointed above middle, aculeate. Epicalyx lobes 8 or 10, free, linear, acute, 10-15 x 1-2 mm, forked at tip, densely covered with bulbous based bristles. Calyx ca 1.5 cm across, accrescent to 2.5 cm, lobes ovate to deltoid, acuminate at apex, 7-10 x 3-4 cm, bristly outside, glabrous inside. Corolla ca 6 cm across, yellow with a dark purple centre; petals obovate, 4-6 x 3-4.5 cm. Staminal column ca 2 cm long, antheriferous throughout. Ovary ovoid, ca 4 x5 cm, densely hirsute. Styles ca 2 cm long with 5 purple arms; stigmas capitate, purple. Capsules ovoid, beaked, ca 2.5 x 1.5 cm, densely bristly; seeds reniform, ca 4 mm across, scabridulous, brown.
  Habit: Shrub
  Flowering & Fruiting: August-February
  District(s): All Districts
  Medicinal:
  Habitat: Grown as ornamental plant
  Distribution: Native of Eastern India, Bangladesh and Myanmar
  Aquatic: No
  Epiphyte(s): No
  Saprophyte: No
  Stem parasite: No
  Root parasite: No
  Flower colour(s): Red
  Weed: No
  Monocot/Dicot: Dicotyledonous Plants
  Exotic: Yes
  Garden: Yes
  Edible: No
  Vegetable: No
  Endemic to:
  IUCN status:
  Altitude:
  Localities:
   
 
   
 
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