Notes For Reference:-

Gastrodia pubilabiata f. castanea / Bengarayatsushiroran ベンガラヤツシロラン

Gastrodia pubilabiata f. castanea (Japanese name: Bengarayatsushiroran) was described as a new form of Gastrodia pubilabiata in 1979 by Fukunaga and colleagues. Taxonomic characteristics: While the flowers of the original species are black or purple-brown, the flowers of this new form are red-brown. Other differences between the two forms are not readily apparent. Bloom time: September to October.