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Merremia umbellata
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Family:
CONVOLVULACEAE
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Citation: Merremia umbellata (L.) Hall. f. in Engl., Bot. Jahrb. Syst. 16: 552. 1893; Gamble, Fl. Pres. Madras 928(651). 1923; Manilal & Sivar., Fl. Calicut 186. 1982; Mohanan, Fl. Quilon Dist. 275. 1984; Ansari, Fl. Kasaragod Div. 248. 1985; Manilal, Fl. Silent Valley 190. 1988; Ramach. & V.J. Nair, Fl. Cannanore Dist. 306. 1988; Antony, Syst. Stud. Fl. Kottayam Dist. 270. 1989; Babu, Fl. Malappuram Dist. 491. 1990; Vajr., Fl. Palghat Dist. 313. 1990; M. Mohanan & Henry, Fl. Thiruvanthapuram 318. 1994; Subram., Fl. Thenmala Div. 236. 1995; Sasidh. et al., Bot. Stud. Med. Pl. Kerala 30. 1996; Sasidh. & Sivar., Fl. Pl. Thrissur For. 312. 1996; Sasidh., Fl. Shenduruny WLS 219. 1997; Sivar. & Mathew, Fl. Nilambur 460. 1997; Sasidh., Fl. Periyar Tiger Reserve 270. 1998; Sasidh., Fl. Parambikulam WLS 209. 2002; Mohanan & Sivad., Fl. Agasthyamala 474. 2002; Anil Kumar et al., Fl. Pathanamthitta 348. 2005; Sunil & Sivadasan, Fl. Alappuzha Dist. 479. 2009; Ratheesh Narayanan, Fl. Stud. Wayanad Dist. 565. 2009.
Convolvulus umbellatus L., Sp. Pl. 155. 1753.
Ipomoea cymosa Roem. & Schult., Syst. Veg. 4: 241. 1819; Hook. f., Fl. Brit. India 4: 211. 1883.
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Malayalam Name(s):
Kolavaravalli, Koravalli, Vayara
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Tamil name(s):
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English name(s):
Yellow Merremia, Yellow Wood Rose
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Description:
Twiners; young shoots puberulous. Leaves alternate, 4-7 x 1.5-3.5 cm, ovate-lanceolate, base cordate or rounded, apex acuminate, pubescent below; petiole 1.5-2.5 cm long. Inflorescence axillary umbelliform cymes; peduncle 1-3 cm long; pedicels 7-10 mm long. Sepals 6-8 mm long, ovate-lanceolate, apiculate, scarious on margins. Corolla white, campanulate; tube 2-3 cm long, pubescent without; limb 2.5-3 cm across. Stamens 5, unequal; anthers twisted. Ovary 2-celled, ovules 2 in each cell; stigma capitate. Capsule 8-10 x 5-6 mm, ovoid; seeds long hairy, black.
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Habit:
Climber
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Flowering & Fruiting:
January-April
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District(s):
All Districts
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Medicinal:
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Habitat:
All type of forests, also in the plains
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Distribution:
Pantropical
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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):
White
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Weed:
No
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Monocot/Dicot:
Dicotyledonous Plants
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Exotic:
No
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Garden:
No
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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:
400-750
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Localities:
Vellanimala, Chimmini, Poringal, Rosemala, Koruthode, Dam site, Kuriarkutty, South Walakkad, Allmost all places, Chembukkavu, Tolpetty, Karimbam, Taliparamba, Karivara slopes, Kanjirakadavu, Thenmalai, Ettapadappu, Kulathupuzha, Kavalam, Attayar
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