Kingdom Plantae Family Orchidaceae Tribe Orchideae Rank Species | Order Asparagales Subfamily Orchidoideae Subtribe Orchidinae | |
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Similar Platanthera lacera, Platanthera blephariglottis, Platanthera orbiculata, Platanthera peramoena, Platanthera psycodes | ||
Platanthera flava, the palegreen orchid, is a species of pale-flowered orchid. It is native to eastern North America, from Texas east to Florida, north to Ontario, Quebec and Nova Scotia.
Platanthera flava has from 10-40 flowers in an inflorescence. In the north of its range, in Canada, this species is particularly associated with shorelines of lakes and rivers, in the seasonally flooded zone. In Nova Scotia, it occurs in wet meadows on seasonally flooded shorelines with rare shoreline species such as Plymouth Gentian. In the south, such as in Texas, it is found in wet savannas and flatwoods. The shoreline habitats of the north are maintained by ice scour, while in the south, the flatwoods are maintained by recurring fire. Hence, it appears that this species depends upon recurring natural disturbance to maintain open sunny conditions.
Varieties
Two varieties are recognized:
