Onoclea sensibilis

Onoclea bilis

Onoclea bilis or Perlfarn is the only species of the genus within the family of Onoclea Onocleaceae. Your disjoint area covers the eastern North America and eastern Asia. The specific epithet sensibilis refers to the pronounced sensitivity to frost the sterile fronds.

Description

Onoclea bilis grows as a deciduous, perennial herbaceous plant, reaching heights of growth of 30 to 90 centimeters. As memory and Überdauerungsorgan the species has a long creeping rhizome. The long -stalked and widely overhanging sterile fronds are individually or together to a few and are of a yellow-green color. The leaf blade is pinnatisect with reticular associated nerves, however, often pinnate at the base. It is of a leathery consistency. The Fiederabschnitte have a triangular shape. The upright fertile fronds are shorter than the sterile fronds. The leaf blade is doubly pinnate, the pinnules spherical roll up to the Sori. The spread via spores and the rhizome.

Occurrence

The natural range of Onoclea bilis is the eastern North America and eastern Asia.

The locations of the preferred type moist forests and grave edges. In the near streams, in wet meadows, and sources it is also to be found.

Although Onoclea bilis belongs to Hardiness Zone = USDA hardiness zone 2, it is late frost - sensitive.

Use

The Perlfarn is occasionally used as an ornamental plant in groups of trees and wet meadows. He is culture since about 1799. The new growth is generally considered attractive. Well known is the variety Rotstieliger Perlfarn, which is characterized by red petioles.