Notes For Reference:-　

Species, Varieties, or Forms in the Genus Parnassia:

Parnassia foliosa var. nummularia / Shirahigesou
Parnassia palustris var. multiseta / Umebachisou
　

Parnassia palustris var. multiseta / Umebachisou ウメバチソウ

Parnassia palustris var. multiseta inhabits the damp part of the mountain grassland and bears a single 2.0-2.5cm across white flowers on the top of the 10- to 40cm stalks facing the sky. Most interesting is that this species has five staminodes (a term meaning a stamen without the ability to produce pollen), each of which splits into a dozen to twenty-two, on top of each, creating a beautiful yellow nectary ball. It is fascinatingly beautiful. Bloom time: August-September.August-September.