Notes For Reference:-

Species, Varieties, or Forms in the Genus Hypericum:

Hypericum asahinae / Daisen'otogiri
Hypericum ascyron / Tomoesou
Hypericum erectum / Otogirisou
Hypericum japonica / Himeotogiri
Hypericum laxum / Kokeotogiri
Hypericum oliganthum / Azeotogiri
Hypericum pseudopetiolatum / Sawaotogiri

Hypericum erectum / Otogirisou オトギリソウ

Hypericum erectum is a perennial found in fields and mountains in the alpine zone. The stems grow 10-30cm in height, with petiole-lacking leaves that are opposite and have a broad lanceolate shape. The leaves, 1.5-3cm in length, have black spots on the edges and luminous dots on their surfaces. A few yellow, five-petaled flowers bloom from June to August at the top of the stem, with some black spots on the petals. Bloom time: June-August.