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Chromolaena odorata
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Family:
ASTERACEAE/COMPOSITAE
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Citation: Chromolaena odorata (L.) King & Robins., Phytologia 20: 204. 1970; Manilal & Sivar., Fl. Calicut 151. 1982; Ansari, Fl. Kasaragod Div. 210. 1985; Manilal, Fl. Silent Valley 152. 1988; Ramach. & V.J. Nair, Fl. Cannanore Dist. 247. 1988; Antony, Syst. Stud. Fl. Kottayam Dist. 211. 1989; Babu, Fl. Malappuram Dist. 366. 1990; Vajr., Fl. Palghat Dist. 250. 1990; M. Mohanan & Henry, Fl. Thiruvanthapuram 257. 1994; Sasidh. et al., Bot. Stud. Med. Pl. Kerala 9, 15, 21, 29; Sasidh. & Sivar., Fl. Pl. Thrissur For. 248. 1996; Sasidh., Fl. Shenduruny WLS 174. 1997; Sivar. & Mathew, Fl. Nilambur 366. 1997; Sasidh., Fl. Periyar Tiger Reserve 198. 1998; Sasidh., Fl. Chinnar WLS 163. 1999; Sasidh., Fl. Parambikulam WLS 167. 2002; Mohanan & Sivad., Fl. Agasthyamala 373. 2002; Anil Kumar et al., Fl. Pathanamthitta 280. 2005; Sunil & Sivadasan, Fl. Alappuzha Dist. 380. 2009; Ratheesh Narayanan, Fl. Stud. Wayanad Dist. 464. 2009.
Eupatorium odoratum L., Syst. Nat. (ed. 10) 1205. 1759; Hook. f., Fl. Brit. India 3: 244. 1881; Mohanan, Fl. Quilon Dist. 230. 1984; Uniyal in Hajra et al., Fl. India 12: 354.1995.
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Malayalam Name(s):
Assam pacha, Communist-pacha
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Tamil name(s):
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English name(s):
Siam weed, Chritsmas Bush, Bitter Bush
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Description:
Shrubs, glandular hairy. Leaves simple, opposite, 8-12 x 5-8 cm, ovate, apex acute, base cuneate, crenate, hispid; petiole 2-3 cm long, cylindrical-oblong. Heads to 10 mm long, in terminal corymbose cymes; bracts 3-5-seriate, to 8 mm long, ovate, obtuse; outer smaller, inner linear, acute, 3-ribbed. Flowers few to many, similar, bisexual; corolla 5 mm long, white, tubular, 5-lobed, pubescent at apex. Achenes 4 mm long, linear, 5-angled, scabrous, black; pappus many, 4-7 mm long, setaceous, yellowish.
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Habit:
Shrub
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Flowering & Fruiting:
November-May
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District(s):
All Districts
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Medicinal:
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Habitat:
A weed in all terrestrial habitats
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Distribution:
Native of America; naturalised in Tropical Asia
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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:
Yes
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Monocot/Dicot:
Dicotyledonous Plants
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Exotic:
Yes
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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:
400-800
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Localities:
Peechi, Kattalappara, Chinnar, Thekkady, Thunakkadavu, Nelluyampathy forests, Punnamala, Pathenthode, Konni, Tolpetty, Taliparamba, Vaniampara, Angadikkal, Machiri, Bonaccord, Attayar
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