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Arachis hypogaea
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Family:
FABACEAE/LEGUMINOSAE (Subfam.: Papilionoideae)
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Citation: Arachis hypogaea L., Sp. Pl. 741. 1753.
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Malayalam Name(s):
Nilakkadala, Kappalandi
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Tamil name(s):
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English name(s):
Groundnut, Peanut, Monkeynut
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Description:
Diffuse herb; branchlets glabrescent. Leaves even-pinnate, to 12 x 6 cm; petiole to 6 cm; stipules to 4 cm, linear-lanceolate, acute; leaflets 4, opposite, elliptic, to 5 x 3 cm, subsessile, base cuneate, apex obtuse, mucronate, glabrescent. Flower axillary, solitary, 1.5 cm wide. Calyx 5-lobed; upper 4 connate, lower one free. Petals yellow with red nerves, clawed; standard orbicular, 1.5 cm wide; wings obovate, 1 x 0.5 cm, auricled; keels oblong, 1 x 0.4 cm, beak curved. Stamens 8, monadelphous; sheath 5 mm, 4 basifixed elongate anthers alternating with 4 versatile shorter ones. Ovary subsessile; style elongate, incurved; stigma minute. Pod sausage-shaped, 1-3-seeded, constricted between seeds, but not divided into segments, indehiscent, geocarpic; seeds ovoid or oblong.
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Habit:
Herb
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Flowering & Fruiting:
July-December
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District(s):
Idukki, Palakkad
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Medicinal:
Yes
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Habitat:
Cultivated
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Distribution:
Native of South America
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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):
Yellow
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Weed:
No
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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:
Yes
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Vegetable:
No
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Endemic to:
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IUCN status:
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Altitude:
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Localities:
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