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  Acacia pennata
  Family: FABACEAE/LEGUMINOSAE (Subfam.: Mimosoideae)
  Citation:  Acacia pennata (L.) Willd., Sp. Pl. 4: 1090. 1806; Hook. f., Fl. Brit. India 2: 297. 1878p.p.; Gamble, Fl. Pres. Madras 429(304). 1919; Manilal & Sivar., Fl. Calicut 100. 1982; Mohanan, Fl. Quilon Dist. 166. 1984; Ansari, Fl. Kasaragod Div. 148. 1985; Manilal, Fl. Silent Valley 92. 1988; Ramach. & V.J. Nair, Fl. Cannanore Dist. 168. 1988; Babu, Fl. Malappuram Dist. 227. 1990; Vajr., Fl. Palghat Dist. 186. 1990; Sasidh. & Sivar., Fl. Pl. Thrissur For. 167. 1996; Sasidh., Fl. Shenduruny WLS 111. 1997; Sanjappa, Legumes Ind. 42. 1992; Chakrab. & Gangop., Journ. Econ. Tax. Bot. 20: 620. 1996; Sivar. & Mathew, Fl. Nilambur 239. 1997; Sasidh., Fl. Periyar Tiger Reserve 125. 1998; Sasidh., Fl. Chinnar WLS 118. 1999; Sasidh., Fl. Parambikulam WLS 110. 2002; Anil Kumar et al., Fl. Pathanamthitta 202. 2005; Ratheesh Narayanan, Fl. Stud. Wayanad Dist. 333. 2009. Mimosa pennata L., Sp. Pl. 522. 1753.
  Malayalam Name(s): Kakkinja, Kareencha, Kattusinikka, Karinja, Peincha
  Tamil name(s):
  English name(s): Rusty mimosa
  Description: Woody climbers, stem to 4 cm diameter, smooth; branchlets, rachises and inflorescence densely, minutely, light brown tomentellous; the branches and the underside of the rachises with recurved, hooked, smooth prickles, those on the branchlets 2-4 mm long, their base broad. Leaves bipinnate, alternate, pinnae 7-18 pairs, up to 4 cm long with slender, sparsely tomentellous rachillae without thorns; leaflets sessile, chartaceous, overlapping, usually glabrous with fimbriate margins, very small, 30-50 pairs, very narrow, linear, base oblique, midrib diagonal, running along and very near the margins, 2-3 x 0.5-1 mm, mucronate; rachis up to 15 cm long with 4 cm petiolar part which has scattered c. 1 mm long prickles and a large, flattish, oval gland near its base; smaller, more rounded flattened glands are found between the bases of the upper 1-3 pairs of pinnae. Flower heads globose, 1-3 together in leaf axils and these combined into a terminal, many-umbelled panicles, up to 20 cm long, densely pale brown tomentellous. Heads 1-2 cm diameter. Flowers subsessile; bracts spathulate, apical part fimbriate. Calyx thin, campanulate, 1.5-2 mm long, glabrous or very minutely and shortly pilose, the teeth distinct, 1 mm long, brown red. Corolla hardly 1 mm longer than the calyx, light green, the tips of the lobes green or red brown. Pod 15-20 x 2-3 cm, strap-shaped, flat with slightly raised sutures, smooth, reddish brown, thin, the suture straight with few or no indents, dehiscent, along both sutures, distinctly stalked, apex acute; seeds 6-12, flat, round; the pod slightly bullate over the seeds.
  Habit: Climber
  Flowering & Fruiting: October-January
  District(s): All Districts
  Habitat: Moist deciduous forests
  Distribution: Paleotropics
  Aquatic: No
  Epiphyte(s): No
  Saprophyte: No
  Stem parasite: No
  Root parasite: No
  Flower colour(s): White, Creamy
  Weed: No
  Monocot/Dicot: Dicotyledonous Plants
  Exotic: No
  Garden: No
  Edible: No
  Vegetable: No
  Endemic to:
  IUCN status:
  Localities: Vazhachal, Kollathirumedu, Chinnar, Vallakkadavu, Parambikulam, Chembotti, Ranni, Baveli, Taliparamba, Tolpetty, Neriamangalam, Agali, Malampuzha, Mukkali forests, Nellikuty
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