Platanthera flava, the palegreen orchid,[1] 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.[2][3]
Platanthera flava has from 10 to 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.[4] In Nova Scotia, it occurs in wet meadows on seasonally flooded shorelines with rare shoreline species such as Plymouth Gentian.[5] In the south, such as in Texas, it is found in wet savannas and flatwoods.[6] 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.
Two varieties are recognized:
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 to 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.
Platanthera flava es una especie de orquídea de hábito terrestre.[1]
Es originaria del este de América del Norte, desde Texas, al este de la Florida, al norte de Ontario, Quebec y Nueva Escocia.[2][3]
Platanthera flava tiene 10-40 flores en la inflorescencia. En el norte de su área de distribución, en Canadá, esta especie está particularmente asociada con las orillas de lagos y ríos, en la zona de inundación estacional.[4] En Nueva Escocia, se produce en las praderas húmedas en las costas inundadas estacionalmente con especies raras del litoral como Sabatia kennedyana.[5] En el sur, como en Texas, se encuentra en las sabanas húmedas e inundables.[6] Los hábitats costeros del norte son mantenidos por la socavación del hielo, mientras que en el sur, son mantenidos por el fuego. Por lo tanto, parece que esta especie depende de recurrentes de perturbación natural para mantener las condiciones soleadas abiertas.
Platanthera flava fue descrita por (Carlos Linneo) Lindl. y publicado en The Genera and Species of Orchidaceous Plants 292. 1835.[7]
El nombre genérico Platanthera deriva del griego y se refiere a la forma de las anteras de las flores ("flores con anteras grandes, planas").
El epíteto específico flava significa "amarillo rojizo"[8]
Platanthera flava es una especie de orquídea de hábito terrestre.
Platanthera flava là một loài thực vật có hoa trong họ Lan. Loài này được (L.) Lindl. miêu tả khoa học đầu tiên năm 1835.[1]
Platanthera flava là một loài thực vật có hoa trong họ Lan. Loài này được (L.) Lindl. miêu tả khoa học đầu tiên năm 1835.
