Botanical name: Bupleurum longicaule Family: Apiaceae (Carrot family)
Synonyms: Bupleurum longicaule var. ramosum, Bupleurum himalayense
Long-Stem Thorowax is a perennial herb with several slender stems 15-40 cm long. Leaves are narrow lanceshaped, long-pointed, 8-10 cm long. Upper leaves are stem-clasping. Flowers are blackish-brown, in 2-8 secondary umbels, each about 1 cm across, and subtended by a whorl of 6-8 green leaf-like bracts much longer than flowers. Fruit is oblong, about 4 mm, ribs slightly winged. Long-Stem Thorowax is found in the Himalayas, from Pakistan to Bhutan, at altitudes of 3000-4400 m. Flowering: June-September.
Identification credit: Gurcharan Singh
The flower labeled Long-Stem Thorowax is ...