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Bidens biternata
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Family:
ASTERACEAE/COMPOSITAE
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Citation: Bidens biternata (Lour.) Merr. & Sheriff, Bot. Gaz. 88. 293. 1929; Mohanan, Fl. Quilon Dist. 226. 1984; Manilal, Fl. Silent Valley 149. 1988; Ramach. & V.J. Nair, Fl. Cannanore Dist. 242. 1988; M. Mohanan & Henry, Fl. Thiruvanthapuram 253. 1994; Subram., Fl. Thenmala Div. 195. 1995; H.J. Chowdhery in Hajra et al., Fl. India 12: 367. 1995; Sasidh. et al., Bot. Stud. Med. Pl. Kerala 21. 1996; Sasidh. & Sivar., Fl. Pl. Thrissur For. 245. 1996; Sasidh., Fl. Shenduruny WLS 172. 1997; Sasidh., Fl. Periyar Tiger Reserve 194. 1998; Pradeep, Fl. Vellarimala 86. 2000; Mohanan & Sivad., Fl. Agasthyamala 369. 2002; Anil Kumar et al., Fl. Pathanamthitta 276. 2005; Sunil & Sivadasan, Fl. Alappuzha Dist. 375. 2009; Ratheesh Narayanan, Fl. Stud. Wayanad Dist. 459. 2009.
Coreopsis biternata Lour., Fl. Cochinch. 508. 1790.
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Malayalam Name(s):
Kandavarekuthi, Snehappullu
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Tamil name(s):
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English name(s):
Spanish Needles
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Description:
Erect subshrubs; stem ribbed. Leaves pinnate or bipinnate, to 16 cm long; leaflets 6-8 x 3 cm, ovate, acuminate, serrate. Heads 18-20 mm long, oblong, in loose corymbose cymes or solitary; bracts 8 x 2 mm, 2-seriate, oblong, acute; outer ones ciliate. Flowers outer whorl ligulate; limb 5 x 3 mm, oblong, 3-lobed, white. Inner flowers bisexual; corolla tubular, 5-lobed, yellow, lobes obtuse; anthers obtuse at base. Achenes 16 mm long, linear, glabrous; pappus 3, retrorsely barbed, spinescent.
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Habit:
Herb
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Flowering & Fruiting:
April-October
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District(s):
Kozhikkode, Alappuzha, Kollam, Idukki, Pathanamthitta, Kannur, Palakkad, Thiruvananthapuram, Thrissur, Wayanad
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Medicinal:
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Habitat:
Weed in cultivated lands, also in wastelands
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Distribution:
Native of Tropical Africa; Indo-Malesia to Australia
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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, Yellow
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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:
-1400
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Localities:
Vazhachal, Kattalappara, Rockwood, Kokkara, Damsite, Puthukulam, Tolpetty, Chandanathode, Kayamkulam, Thenmalai, Ettapadappu, Ariankavu, Olichuchattam, Bonaccord, Pongalapara
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