Aconitum lethale Griffith, Notul. 4: 732. 1854 & Icon. Pl. Asiat. 460, f. 3. 1854. A. palmatum Hook. f. & Thomson in Fl. Brit. India 1: 28. 1872 (non D. Don 1825), the Mishmi plant only.

Mishmi: Bhi, Bhis.

Herbs, biennial; roots fusiform; stems scandent, flexuous, branched. Basal leaves unknown, upper scattered; petioles ca 5 cm long; lamina cordate-rotund or reniform, 3-Partite, glabrous. Inflorescence a loose lax-flowered raceme; bracts foliaceous. Sepals blue (?); uppermost sepal helmet-shaped. Petals and filaments glabrous. Carpels 5, oblique-oblong, sparingly pubescent.

Fl. Aug.

Distrib. India: Arunachal Pradesh (Mishmi Hills in Lohit District).

Endemic.