Notes For Reference:-

Species, Varieties, or Forms in the Genus Typha:

Typha australis / Himegama
Typha latifolia / Gama
Typha orientalis / Kogama
　

Typha orientalis / Kogama コガマ

Typha orientalis: Male and female spikes stick together and resemble another species, Typha latifolia, but the difference is minor. Stems are 1-1.5 m in height, and the leaves are significantly narrower, measuring approximately 1 cm in width. The male spikes measure 3-9cm, and the female ends are 10-20cm, about half as long as those of Typha latifolia. Pollen is apart from each other. Bloom time: June-August.