Rustyback Fern (Asplenium ceterach)

Overview

Rustyback Fern (Asplenium ceterach) is a small, European fern with the undersides of its fronds densely covered in rusty-brown scales, giving it a distinctive appearance.

Taxonomy

Description

Fronds are 5–15 cm long, pinnate, with rounded pinnae. The upper surface is green; the underside is completely covered with rusty-brown scales (ramenta). Sori are linear, covered by the scales.

Habitat and Cultivation

Grows on limestone walls and rocks in dry, sunny sites. In cultivation, requires alkaline, well-drained soil, bright light, and minimal water. Ideal for mortar joints in walls and rock gardens.