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  Leucas aspera
 
  Family: LAMIACEAE/LABIATAE
  Citation:  Leucas aspera (Willd.) Link, Enum. Hort. Berol. Alt. 2: 113. 1822; Hook. f., Fl. Brit. India 4: 690. 1885; Gamble, Fl. Pres. Madras 1150(803). 1924; Manilal & Sivar., Fl. Calicut 239. 1982; Mohanan, Fl. Quilon Dist. 322. 1984; Ansari, Fl. Kasaragod Div. 305. 1985; Antony, Syst. Stud. Fl. Kottayam Dist. 324. 1989; Vajr., Fl. Palghat Dist. 377. 1990; M. Mohanan & Henry, Fl. Thiruvanthapuram 366. 1994; Subram., Fl. Thenmala Div. 286. 1995; Sivar. & Mathew, Fl. Nilambur 548. 1997; Sasidh., Fl. Chinnar WLS 249. 1999; V. Singh, Monogr. Indian Leucas 43. 2001; Sasidh., Fl. Parambikulam WLS 247. 2002; Sunil & Sivadasan, Fl. Alappuzha Dist. 579. 2009; Ratheesh Narayanan, Fl. Stud. Wayanad Dist. 653. 2009. Phlomis aspera Willd., Enum. Hort. Berol. 2: 621. 1809.
  Malayalam Name(s): Thumba, Chiruthumba
  Tamil name(s):
  English name(s): Thumba
  Description: Erect hirsute herbs to 40 cm tall. Leaves simple, opposite, 3-8 x 1-2 cm, linear-lanceolate, apex acute, base cuneate, margin distantly serrate, puberulous, petiole 3 mm long. Verticils terminal and axillary; bract linear, equalling calyx, hirsute. Calyx 6 mm long, tubular, 10-ribbed, upper half strigose without, glabrous below; mouth oblique, 10-toothed; teeth unequal, posterior the longer, linear, c.1 mm long. Corolla white; tube c. 6 mm long; upper lip c. 3 mm long, villous without; lower lip 7-8 mm long. Stamens 4. Style c. 8 mm long.
  Habit: Herb
  Flowering & Fruiting: September-January
  District(s): All Districts
  Medicinal: Yes
  Habitat: Deciduous forests and wastelands
  Distribution: Indo-Malesia
  Aquatic: No
  Epiphyte(s): No
  Saprophyte: No
  Stem parasite: No
  Root parasite: No
  Flower colour(s): White
  Weed: No
  Monocot/Dicot: Dicotyledonous Plants
  Exotic: No
  Garden: No
  Edible: No
  Vegetable: No
  Endemic to:
  IUCN status:
  Altitude:
  Localities: Chengamperu, Vengoli, Pappinisseri, High Range, Attapady block-Mukkali, Walayar, Panangad, Vadapuram, Mampad, Ottakkal, Neelamperoor
   
 
   
 
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