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Southern Polypody Fern

Polypodium cambricum

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Contents

Plant Profile

Order:
Polypodiales
Family:
Polypodiaceae (Polypod Fern)
Type:
Fern
Life Cycle:
Perennial
Maximum Size:
40 centimetres tall
Habitats:
Cliffs, riversides, rocky places, walls, waterside, woodland.
Flower:
Ferns are flowerless. They have spores instead in order to reproduce.
Fruit:
Rusty-coloured spores. The spores ripen from December to May.
Leaves:
Yellowish-green leaves (fronds) which are not leathery. Common Polypody (Polypodium vulgare) and Western Polypody (Polypodium interjectum) do not have leathery leaves. The lowest leaves sometimes bend upwards making the leaves appear triangular. Perennial.
Other Names:
Limestone Polypody, Welsh Polypody, Western Polypody.
Frequency (UK):
Unusual  

Similar Species

Other Information

Summary

Polypodium cambricum, also known as the Western Polypody or Welsh Polypody, is a perennial fern that is native to Europe, including the British Isles, and Western Asia. It is commonly found in woodlands, rocky outcrops, and along streams. The fronds are evergreen, with large, leathery leaflets that are deeply lobed, green on the top and brownish on the bottom. The fronds are attached to the rhizomes by long stalks, the rhizomes are creeping and can form dense mats. This fern is tolerant to a wide range of growing conditions, and can be grown in both sun and shade. It is often used in landscaping, as well as in horticulture and floristry as it is an attractive and hardy fern.

Blog

The Southern Polypody Fern, scientifically known as Polypodium cambricum, is a beautiful and unique plant that belongs to the Polypodiaceae family. It is native to the British Isles and can be found in many parts of Europe, including France, Spain, and Portugal. This plant is widely admired for its delicate, frilly fronds and its ability to grow in a variety of habitats, including rocks, walls, and tree trunks.

Description of the Southern Polypody Fern

The Southern Polypody Fern is a small fern that grows to a height of about 20 to 40 cm. Its fronds are delicate and highly dissected, giving them a lacy, airy appearance. The fronds are arranged in a circular rosette and are borne on short stalks that emerge directly from the rhizome. The fronds are green in color and have a shiny, waxy surface that repels water.

The rhizome of the Southern Polypody Fern is black and scaly, with small wiry roots emerging from it. The rhizome is thin and creeping, allowing the fern to form dense clumps in favorable conditions.

Habitat and Distribution

The Southern Polypody Fern is a hardy plant that can grow in a variety of habitats. It is most commonly found growing on rocky cliffs and outcrops, where it forms dense mats of foliage. It can also grow on walls, tree trunks, and in shady, moist woodland areas. It prefers well-drained, acidic soils and can tolerate partial shade.

The Southern Polypody Fern is native to the British Isles and can be found throughout the UK, from Cornwall to the north of Scotland. It is also found in many parts of Europe, including France, Spain, and Portugal. In the UK, it is most commonly found in Wales and the southwest of England.

Cultivation and Care

The Southern Polypody Fern is a relatively easy plant to grow in the garden. It prefers well-drained, acidic soils and can tolerate partial shade. It is best grown in a rock garden, where it can form dense mats of foliage. It can also be grown in a container, as long as the soil is well-drained and the container is kept moist.

The fern can be propagated by dividing the rhizomes in the spring or by spores. Spores can be collected from mature fronds and sown on moist, peaty soil. The spores can take up to two years to germinate, so patience is required.

The Southern Polypody Fern is a hardy plant that requires little maintenance. It can be watered during dry spells and fertilized with a balanced fertilizer in the spring.

The Southern Polypody Fern is a beautiful and unique plant that is native to the British Isles. It is admired for its delicate, frilly fronds and its ability to grow in a variety of habitats, including rocks, walls, and tree trunks. It is a hardy plant that requires little maintenance and is relatively easy to grow in the garden. If you are looking for a beautiful, low-maintenance plant to add to your garden, the Southern Polypody Fern is definitely worth considering.

Additional Information

The Southern Polypody Fern has a long and fascinating history. It has been used for centuries in traditional medicine to treat a range of ailments, including liver problems, fever, and headaches. The fern was also thought to have magical properties and was used in spells to protect against evil spirits and promote fertility.

In addition to its medicinal and magical properties, the Southern Polypody Fern is also important ecologically. It provides habitat and food for a range of insects and other invertebrates, including moths, butterflies, and spiders. These invertebrates, in turn, provide food for larger animals such as birds and small mammals.

The Southern Polypody Fern is also an important indicator species for ecologists. It is highly sensitive to environmental changes, particularly those related to air pollution and climate change. As such, it is used as a bioindicator to monitor air quality and climate change impacts.

In recent years, the Southern Polypody Fern has faced a range of threats, including habitat loss, pollution, and climate change. Efforts are underway to protect and conserve this important species, including through the creation of protected areas and the development of conservation programs.

The Southern Polypody Fern has also been used in the horticultural industry for its ornamental value. It is a popular plant for rock gardens, borders, and containers, where its delicate fronds and compact size can add interest and texture to the landscape. It is also sometimes used in terrariums and indoor plant displays, as it is well-suited to low light and humidity.

There are several cultivars of the Southern Polypody Fern available, each with unique characteristics such as frond color or texture. These cultivars can be propagated by division or spores, and are often used by gardeners and landscapers to create interesting and visually striking displays.

One interesting aspect of the Southern Polypody Fern is its ability to hybridize with other fern species, resulting in hybrid plants with unique characteristics. For example, it has been known to hybridize with the Western Polypody Fern (Polypodium hesperium) to produce a hybrid known as Polypodium x mantoniae.

The Southern Polypody Fern is also an important component of traditional Celtic culture. It is known as the "adder's tongue" or "adder's meat" fern, and was believed to protect against snakebites and other venomous creatures. It was also associated with the goddess Brigid, and was used in rituals and ceremonies to honor her.

Another interesting aspect of the Southern Polypody Fern is its unique ability to thrive in a variety of environments. It can grow in a range of soil types, from sandy to clayey, and can tolerate both acidic and alkaline soils. It is also able to grow in shady and sunny locations, making it a versatile plant for a variety of landscape and gardening situations.

The Southern Polypody Fern is a deciduous fern, meaning that it loses its leaves in the fall and re-grows them in the spring. Its leaves, or fronds, are divided into small leaflets that give it a delicate and intricate appearance. The fronds can grow up to 40 centimeters in length, and the plant itself can reach a height of around 30 centimeters.

One interesting feature of the Southern Polypody Fern is its ability to reproduce through both spores and vegetative reproduction. Spores are small, reproductive cells that are produced by ferns and other plants. They are dispersed by wind or water and can grow into new plants under the right conditions. Vegetative reproduction, on the other hand, involves the growth of new plants from existing roots or other plant parts. This allows the Southern Polypody Fern to spread and thrive in a variety of conditions.

Overall, the Southern Polypody Fern is a fascinating and versatile plant with a rich history and many interesting features. Whether you are interested in its ecological importance, ornamental value, or cultural significance, this plant is sure to capture your imagination and inspire you.


Distribution Map

Reproduced by kind permission of the BSBI.

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