Japanese name: キソチドリ(木曽千鳥) Scientific name:Platanthera ophrydioides
[Overview]
A perennial 15–30 cm tall, growing in subalpine to alpine coniferous forests.
A terrestrial orchid.
The roots are thickened into a spindle shape.
The bud forms adjacent to the stem that emerged this year.
The stem is ridged.
The leaves are simple and alternate; the single leaf on the lower part of the stem is large, elliptic, 2.5–6 cm long and 1–3 cm wide, with an entire margin and a base that slightly clasps the stem.
The 1–2 leaves on the upper part of the stem are lanceolate and gradually become smaller.
A raceme bears about 5–15 flowers.
The bracts are lanceolate.
The flowers are pale yellowish green; the dorsal sepal is narrowly ovate, the lateral petals are membranous and obovate, and the lip is broadly linear.
Behind the flower is a spur 0.6–1 cm long, which curves forward.