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Cryptostegia grandiflora
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Family:
PERIPLOCACEAE
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Citation: Cryptostegia grandiflora R. Br., Bot. Reg. t. 435. 1820; Hook. f., Fl. Brit. India 4: 6. 1883; Gamble, Fl. Pres. Madras 862(606). 1923; Antony, Syst. Stud. Fl. Kottayam Dist. 249. 1989; Babu, Fl. Malappuram Dist. 433. 1990; Vajr., Fl. Palghat Dist. 288. 1990; Sunil & Sivadasan, Fl. Alappuzha Dist. 440. 2009; Ratheesh Narayanan, Fl. Stud. Wayanad Dist. 539. 2009.
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Malayalam Name(s):
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Tamil name(s):
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English name(s):
Palay rubbervine, Purple allamandra, Rubbervine
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Description:
Evergreen suberect or climbing shrubs, 1.5-3 m high; branches terete, at nodes, sarmentose, lenticelled and warty. Leaves opposite, 4-8 x 3-5 cm, exstipulate, subcoriaceous, elliptic, obtuse at apex, subacute at base, glabrous on both surfaces, dark green and glaucous above, pale beneath; lateral nerves 10-12 pairs; petioles 1-1.5 cm long, compressed, glabrous. Flowers 6-7 cm long, whitish, tinged with light purple, showy, in few-flowered, terminal, dichotomous cymes; pedicels 1-1.5 cm long, stout, minutely pubescent, terete; bracts 6-12 x 2-3 mm, linear, acute, puberulent. Calyx 14-16 x 6-8 mm, divided nearly to base, ovate, acute at apex, margins recurved, glabrous within near base, otherwise puberulent. Corolla 6-8 cm across when fully open; tube up to 2 cm long, narrow below, subcampanulate at throat; lobes 4-4.5 x 1.5-1.7 cm, obliquely-oblong, acute, over lapping to the right, glabrous, somewhat fleshy. Corona coralline, near base of the throat, the lobes cleft in to 2, 1-1.2 cm long, filiform segments. Filaments short, free, not connate at base; anthers sagittate, adnate to the stigma, connective produced into acute processes, connivent over the stigma; pollen masses granular, translator subspathulate. Ovary glabrous, ovules many; style short, stout, glabrous, the apex dome-shaped. Follicles 8-12 x 3.5 cm, divaricate, woody, 3-angled, glabrous; seeds 6 x 2 mm long, ovate, glabrous; coma 2.5 cm long, silky-white.
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Habit:
Climber
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Flowering & Fruiting:
Throughout the year
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District(s):
All Districts
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Medicinal:
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Habitat:
Cultivated
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Distribution:
Native of Madagascar, widely planted in the tropics
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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):
Violet
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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:
Attapady block-Mukkali, Kalarcodu
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