Myrmechis japonica ("Aridoshiran")

Japanese name: アリドオシラン （蟻通蘭）
Scientific name: Myrmechis japonica

[Overview]
A perennial 5–10 cm tall, found under forest trees in the subarctic to cool-temperate zones.
The roots are degenerate, and the lower part of the stem creeps along the ground.
The leaves are simple, 3–5 in number, sparsely alternate, and ovate, 5–12 mm long and 4–8 mm wide.
The petiole is slightly tinged with red, and its base sheathes the stem.
A raceme bears 1–3 flowers.
The sepals and lateral petals are lanceolate; the lip is about 1 cm long, longer than the sepals, obtriangular, and 2-lobed.
The fruit is a capsule.

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