Dryopteris cambrensis subsp. insubrica

Dryopteris cambrensis subsp. insubrica, a subspecies of the Kambrian worm fern (Dryopteris cambrensis), belongs to the family of the worm farm (Dryopteridaceae). This plant is a fascinating subspecies that occurs primarily in the alpine and subalpine regions of Central Europe. As a hybrid original plant, it has complex taxonomy and is of particular interest on botanists.

Taxonomic classification

Dryopteris cambrensis subsp. insubrica is a polyploid hybrid that is probably from the intersection between Dryopteris oreeades and Dryopteris filix-mas developed. Their belonging to the type Dryopteris cambrensis is supported by the common characteristics of the tetraploids and a high similarity in morphology.

Morphology

This subspecies is a persistent, herbaceous fern that reaches a height of 40 to 100 centimeters. It forms a strong, upright rhizome from which a rosette of fronds arises. The fronds are twice feathered and show a characteristic lanceolate shape. The fieders are about 15 to 25 cm long and have serrated edges to the leaf structure of Dryopteris filix-mas remember, but have a finer texture.

The Sori, the plant's spore containers, are located on the underside of the Pet leaves and are arranged at regular intervals along the middle rib. Their arrangement and shape are an important feature of determining the species. Spore production is a decisive factor for the spread and continued existence of the plant.

Distribution and Habitat

Dryopteris cambrensis subsp. insubrica is particularly common in the mountain regions of the Alps and the Apennines. She prefers shady, moist locations and can often be found in mixed forests or along streams. The soil should be rich in humus, well permeable and Kalkarm, the plant shows a preference for slightly acidic conditions.

The plant is characterized by its adaptability at high altitudes between 500 and 2000 meters above sea level. This ability enables it to survive in ecological niches, which are inaccessible to other plant species.

Ecological meaning

Dryopteris cambrensis subsp. insubrica plays an important role in the ecosystem. It contributes to the stabilization of the soil, prevents erosion and creates microbitats for small animals and insects. Their spores serve as the basis for the growth of new fern plants, which contributes to the regeneration of forests.

Cultivation and care

The plant is rarely cultivated in gardens because it needs specific environmental conditions. A shady location with even moisture is ideal for cultivation. The imitation of your natural habitat is crucial for your growth.