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Peristylus aristatus
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Family:
ORCHIDACEAE
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Citation: Peristylus aristatus Lindl., Gen. Sp. Orchid. Pl. 300. 1835; Gamble, Fl. Pres. Madras 1474(1030). 1928; Abraham & Vatsala, Introd. Orchids 246. 1981; Ramach. & V.J. Nair, Fl. Cannanore Dist. 459. 1988; Manilal, Fl. Silent Valley 300. 1988; Vajr., Fl. Palghat Dist. 489. 1990; M. Mohanan & Henry, Fl. Thiruvanthapuram 467. 1994; Sasidh., Fl. Shenduruny WLS 326. 1997; Sasidh., Fl. Periyar Tiger Reserve 434. 1998; Sathish in Manoharan et al., Silent Valley-Whispers Reason 209. 1999; Sasidh., Fl. Parambikulam WLS 334. 2002; Mohanan & Sivad., Fl. Agasthyamala 690. 2002; Sathish & Manilal, Orchid Memories 211. 2004; Anil Kumar et al., Fl. Pathanamthitta 492. 2005; Ratheesh Narayanan, Fl. Stud. Wayanad Dist. 839. 2009.
Habenaria aristata (Lindl.) Hook. f. in Trimen, Cat. Ceylon Pl. 91. 1885; Hook. f., Fl. Brit. India 6: 158. 1890, non King & Pantl, 1898.
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Malayalam Name(s):
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Tamil name(s):
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English name(s):
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Description:
Terrestrial herbs. Leaves 4-7 x 2 cm, elliptic-lanceolate, subacuminate. Flowers white, in 10-18 cm long, lax spike, peduncle 12-15 cm long; bracts 11.5 x 4 mm, lanceolate, acuminate, margins finely erose, 1-veined. Dorsal sepal 5 x 1.8 mm, elliptic-oblong, obtuse, 1-veined; lateral sepals 4.1 x 1.8 mm, obliquely ovate-oblong, obtuse, 1-veined. Petals 5.5 x 2.1-2.5 mm, oblanceolate-oblong, obtuse, 1-veined. Lip 5 x 2 mm, 3-lobed; lobes very unequal; lateral lobes 7.5-8 x 0.5 mm, linear, acute, midlobe 2.5 x 0.9 mm, oblong, obtuse. Spur 3.2 x 1.5 mm, ellipsoid, acute, with cylindric stalk.
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Habit:
Herb
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Flowering & Fruiting:
July-August
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District(s):
Palakkad, Idukki, Pathanamthitta, Kannur, Thiruvananthapuram, Kollam, Wayanad
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Medicinal:
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Habitat:
Evergreen forests, grasslands and moist deciduous forests
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Distribution:
India, Sri Lanka, Myanmar and Indo-China
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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:
Monocotyledonous 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:
800-1800
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Localities:
Rosemala, Thekkady, Pezha, Poochapara, Sabarimala, Chandanathode, Athirumala, Chemungi, Pongalapara
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