River Sage
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River Sage
B Naturalized Photo: Rajesh Ramnarayan
Common name: River Sage, Tropical sage, Blue creeping sage
Botanical name: Salvia misella    Family: Lamiaceae (Mint family)
Synonyms: Salvia riparia, Salvia obscura, Salvia privoides

River Sage is a biennial herb, growing up to a height of about 2 feet and is generally considered as an annual. Flowers are blue in color. 7-7.5 mm, white towards the base. Stamens are two in number, style 5 mm and stigma is bilobed. Flowers are borne at branch-ends, and are bunched at intervals on the long flowering stalk which extends up to nearly 15 cm. Sepal-cup is bell shaped, 1.5-2 mm, deeply bilobed, and 10-12 veined, with numerous gland dotted hairs. Stems are ribbed and rectangular in cross-section. All parts of the plant are sticky. The aromatic leaves are arranged oppositely, broadly ovate in shape, 4-6.5 cm, and are of dull green color and are bristly on both sides. Margins are sawtoothed. Leaf stalk is covered by the leaf lamella. The fruit is in the form of a mericap of about 1.5 mm. River Sage is native to Tropical America, naturalized in Africa and Western Ghats in India.

Identification credit: Rajesh Ramnarayan Photographed in Annaikatti, Palakkad district, Kerala.

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