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Platanthera chlorantha

Perennial herbaceous plant with long tubers. The stem is 30-60 cm high, stronger than the stem of the lesser butterfly-orchid (P. bifolia). The basal leaves are 2-3, broadly oval, the rest get smaller up the stem and turn into bracts.
The inflorescence are loose, long, at the beginning oval. Flowers are greenish-white (or yellow-greenish). The outer leaves are oval-lancet, the inner narrow, lanceolate. The labellum is whole, linear, greenish-white. The spur is horizontal, greenish, slightly thicker than that of the lesser butterfly-orchid, the tip is thicker.
The pockets of the polygons are assembled above and wide spaced at the base - like inverted "V". This is the surest distinctive mark of the two species that are often found together (it is best to be observed on place).
This orchid blooms from April to May

Common names
Greater butterfly-orchid
Conservation status
CITES-listed species
This species has been reported 45 times with a total of 227 specimens recorded.
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