Aureolaria virginica (L.) Pennell

국표에 없다.

Aureolaria virginica, the downy yellow false foxglove or downy oak leach, is a perennial forb native to the eastern United States and Canada, which produces yellow flowers in summer.

Description

 

Aureolaria virginica is 50 to 150 centimeters tall and covered in fine downy hairs. The leaves are ovate to lanceolate, 6 to 15 centimeters long and 1.5 to 4.5 centimeters wide. The lower leaves sometimes have lobes or teeth. The flowers are borne on 1 to 3 millimeter long pedicles. The flowers have five 3.5 to 4.5 centimeters long petals fused into a corolla tube, and are smooth on the outside. The fruit is a 1 to 1.5 centimeter long dry ovoid capsule that splits open when ripe.

Distribution and habitat

Aureolaria virginica is widely distributed in the eastern United States, although local distribution may be spotty. It has been recorded in Alabama, Connecticut, Washington, D.C., Delaware, Florida, Georgia, Indiana, Kentucky, Louisiana, Massachusetts, Maryland, Michigan, Mississippi, North Carolina, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, South Carolina, Tennessee, Texas, Virginia, Vermont, and West Virginia. It has also been recorded in the Canadian province of Ontario. Aureolaria virginica is listed as threatened in the state of New Hampshire. In Virginia, it grows in dry oak dominated forests. The presence of this species is dependent on appropriate habitat, and it may be eliminated from an area by development, changes in land use, or competition with invasive species.

Ecology

Like other members of the genus Aureolaria, this species is hemiparasitic on oaks. It may be limited to Quercus alba as a host. It also possesses chlorophyll and performs photosynthesis.

Aureolaria virginica - Wikipedia

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https://upload.wikimedia.org/wikipedia/commons/thumb/8/8d/Aureolaria_virginica_-_Downy_Yellow_False_Foxglove.jpg/1280px-Aureolaria_virginica_-_Downy_Yellow_False_Foxglove.jpg