Family : Dennstaedtiaceae.

Ruddy ground fern.

Attractive widespread ground fern with triangular fronds, tripinnate, pale green; and ruddy stipes and rachises. The rhizome is branching and creeping on the surface. It enjoys moist acidic soils in light shade. Evergreen according to the temperatures. It can be invasive if the conditions are suitable. Height : 50/130cm. Hardiness : -12°C.