Marsh Barbel (Hygrophila schulli)
Marsh Barbel (Hygrophila schulli) is a stout aquatic perennial herb, 1-2 m high. Erect unbranched stems are hairy near swollen nodes. Densely hairy, lance-like, stalkless leaves, 10-15 cm long, occur in whorls of 6 at each node on the stem. Straight, yellow, 4 cm long spines are present in the axil of each leaf. Flowers occur in 4 pairs at each node. The 3 cm long purple-blue flowers are 2-lipped - the upper lip is 2-lobed and the lower one 3-lobed with lengthwise folds. Flowers open in opposite pairs. Flowering: October-April.
Medicinal uses: Kokilaksha, as it is known in sanskrit, was extensively used in Ayurvedic system of medicine for various ailments like rheumatism, inflammation, jaundice, hepatic obstruction, pain, etc.
''Hygrophila auriculata'' (Sanskrit: gokaṇṭa, kokilākṣa) is a herbaceous, medicinal plant in the acanthus family that grows in marshy places and is native to tropical Asia and Africa. In India it is commonly known as or ''gokulakanta'' in Sri Lanka as ''neeramuliya''.