Notes For Reference:-

Species, Varieties, or Forms in the Genus Aconitium:

Aconitum japonicum ssp. Japonicum / Yamatorikabuto
Aconitum japonicum ssp. napiforme / Tannatorikabuto
Aconitum japonicum ssp. napiforme f. albiflorum / Shirobanatannatorikabuto
Aconitum sanyoense / San'youbushi

　

Aconitum japonicum ssp. napiforme / Tannatorikabuto タンナトリカブト

Aconitum japonicum ssp. napiforme, a toxic perennial, inhabits forests in mountainous regions on the Japan Sea. Stems measure approximately one meter in height, and leaves cleave themselves into three; the leaflets, 5-15cm in length and width, also cleave themselves into shallow to mid-veins. Blue-purple flowers, each 3-4cm tall, form corymbs and bloom from the bottom up. Petioles are equipped with bent hairs, and pistils and stamens without hairs. Bloom time: September-November.