Botanical name: Oenanthe thomsonii Family: Apiaceae (Carrot family)
Thomson's Water Dropwort is a weak diffuse herb with stems 20-80cm tall. Leaves are 3-15 cm long, finely 3-4 times pinnately divaricately divided, ultimate segments linear, about 1.5 x 0.25mm. Flowers are borne in umbels 3-5.5cm across, 3-9-rayed. The stalk of an umbel is 1-7cm long. Rays are 1-2.5 cm long, bracteoles 2-3 mm, umbellules 6-10 mm across. Flower-stalks are tiny, 2-7mm. Calyx teeth 0.5-1 mm. Petals are white, 1.25-1.5 mm long. Styles are 0.75-1mm. Fruit is ovoid 2.5-3 x 2 mm. Thomson's Water Dropwort is found in Moist shaded areas among shrubs and trees, marshy meadows, moist grasslands, river banks, streamsides, in Bhutan, India, Myanmar, Nepal, Sikkim and China, at altitudes of 1000-3500 m. Flowering: July-August.
Identification credit: Suniti Kumar Mandal
The flower labeled Thomson's Water Dropwort is ...