Lophosoria quadripinnata aka Diamondleaf Fern

Lophosoria quadripinnata, also known as Diamondleaf fern, is a species of evergreen fern that belongs to the family Dicksoniaceae. According to DNA molecular analysis, it is placed in the genus Lophosoria. This fern is found in the Americas, ranging from Cuba and Mexico to Chile. In Chile, it is present in the area between Talca and Aysén, including the Juan Fernández Islands. In Argentina, it grows in the humid valleys of western Neuquén and Río Negro Province. Lophosoria quadripinnata is a medium-sized plant that can grow up to 4-5 feet in height, although in a sheltered place in Arduaine Garden in Argyll, Scotland, it can reach up to 10-12 feet. It is closely related to other tree ferns, with features like 'pneumathodes' and a rhizome that has a radial symmetry. The fronds are large and multiple pinnate, with the petiole raised adaxially. The rhizome and lower part of the petioles have hairs, similar to tree ferns. The species can be identified by the position and characteristics of the spores found on the fertile fronds. L. quadripinnata is an ornamental plant that forms clumps of foliage. Its triangular fronds are held on upright stems and can reach up to 3m tall. The leaflets are divided into oblong segments, colored mid- to dark green with silvery undersides. The fronds have a semi-glossy texture and are grey-green beneath. Overall, Lophosoria quadripinnata is a vigorous yet tender fern that adds beauty to gardens with its striking appearance and evergreen nature.