EVERGREEN

Plant Encyclopedia

Euphyllophyta
Angiospermae
Asparagales
Orchidaceae
Platanthera
Platanthera tipuloides subsp. nipponica

Platanthera tipuloides subsp. nipponica ("Kobanotonboso")

Japanese name: コバノトンボソウ (小葉蜻蛉草)
Scientific name: Platanthera tipuloides subsp. nipponica

[Overview]
A perennial 20–40 cm tall, found in sunny wetlands and damp grasslands from the mountains to the subalpine zone.
It is a terrestrial orchid.
Part of the root thickens into a spindle shape.
The stem is thin and delicate.
Leaves are simple and alternate; the single leaf on the lower part of the stem is large, broadly linear, 3–7 cm long and 0.5–1.5 cm wide, with an entire margin.
The leaf base forms a sheath that clasps the stem.
The leaves on the upper part of the stem are lanceolate and become small and scale-like, and as they lie along the stem they are inconspicuous.
A raceme bears a few flowers sparsely.
The bracts are lanceolate.
The flowers are pale yellowish green; the dorsal sepal is ovate, the lateral sepals and lateral petals are oblong, and the lip is tongue-shaped and somewhat fleshy.
Behind the flower is a spur 1.2–1.8 cm long, which curves upward.

Details

Names
Japanese: コバノトンボソウ(小葉蜻蛉草)
Life form
Perennial
Habit
Terrestrial
Flowering season
June, July, August
Distribution or origin
Japan (Hokkaido to Kyushu)
Height
200–400 mm
Leaf shape
Simple leaf (unlobed)
Leaf arrangement
Alternate
Leaf margin
Entire
Inflorescence
Raceme
Flower color
Green
Leaf color
Green

Translated from our Japanese encyclopedia. If anything differs, the Japanese page is correct.

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