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Hibiscus radiatus
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Family:
MALVACEAE
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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.
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Malayalam Name(s):
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Tamil name(s):
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English name(s):
Monarch Rosemallow, Ruby Hibiscus
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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.
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Habit:
Shrub
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Flowering & Fruiting:
August-February
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District(s):
All Districts
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Medicinal:
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Habitat:
Grown as ornamental plant
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Distribution:
Native of Eastern India, Bangladesh and Myanmar
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Aquatic:
No
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Epiphyte(s):
No
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Saprophyte:
No
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Stem parasite:
No
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Root parasite:
No
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Flower colour(s):
Red
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Weed:
No
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Monocot/Dicot:
Dicotyledonous Plants
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Exotic:
Yes
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Garden:
Yes
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Edible:
No
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Vegetable:
No
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Endemic to:
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IUCN status:
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Altitude:
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Localities:
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