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Polyzygus tuberosus
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Family:
APIACEAE/UMBELLIFERAE
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Citation: Polyzygus tuberosus Dalz. in Hook.'s J. Bot. Kew Gard. Misc. 2:260.1850; Gamble, Fl. Pres. Madras 562(396). 1919; P.K. Mukh. & Constance, Kew Bull. 41: 228. 1985; P.K. Mukh. & Constance, Umbell. India 247. 1993.
Heracleum concanense var. stocksii Clarke in Hook. f., Fl. Brit. India 2: 716. 1879.
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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:
Erect glabrous herbs, 40-50 cm tall; roots tuberous, fusiform; stem ribbed. Leaves decompound; petiole 5-6 cm long with broad sheathing base; leaflets pinnatifid, segments irregularly serrate. Flowers 1.5-2 mm long, white, polygamous, in axillary and terminal compound umbels 5-10; pedicels to 3 mm long; bracts 1; bracteoles 3, ovate-lanceolate. Calyx 5-lobed; teeth larger in outer flowers. Petals 5, free, oblong, emerginate. Stamens 5; filaments incurved; anthers 2-celled. Fruits 4 x 2 mm, globose or ovoid, dorsally compressed crowned with conical disc; mericarps ridged; ridges slender, many.
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Habit:
Herb
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Flowering & Fruiting:
September-November
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District(s):
Palakkad
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Medicinal:
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Habitat:
Grasslands, often among boulders
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Distribution:
Western Ghats
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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:
Dicotyledonous 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:
Western Ghats
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IUCN status:
Vulnerable (VU)
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Altitude:
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Localities:
Sholayar, Damsite
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