Polystichum aculeatum

(L.) Roth.

Christmas fern, Hard shield fern, Prickly shield fern, Kuthiore, Kuthurka

DryopteridaceaeLeaves
Polystichum aculeatum
iNaturalist · cc-by-sa
(c) Erwin Gruber, some rights reserved (CC BY-SA)
Polystichum aculeatum
iNaturalist · cc-by-sa
(c) Erwin Gruber, some rights reserved (CC BY-SA)
Polystichum aculeatum
iNaturalist · cc-by-sa
(c) Ryan Somma, some rights reserved (CC BY-SA)

What to Eat

Edible parts: Leaves, Fronds

This fern is eaten in curries. No further details are recorded, though it is likely the young leaves that are used, possibly the root.

Where to Find It

It is a temperate plant. It is frost hardy. It grows in damp rocky country. In NW China it grows in Picea forests at about 1,900 m above sea level.

American Samoa, Asia, Australia, Britain, Central Asia, China, Europe, Himalayas, India, Indonesia, Luxembourg, SE Asia, Tajikistan,

Countries: Andorra, United Arab Emirates, Afghanistan, Albania, Armenia, American Samoa, Austria, Australia, Azerbaijan, Bosnia & Herzegovina, Bangladesh, Belgium, Bulgaria, Bahrain, Brunei, Bhutan, Belarus, Switzerland, China, Cyprus, Czechia, Germany, Denmark, Estonia, Spain, Finland, France, United Kingdom, Georgia, Greece, Croatia, Hungary, Indonesia, Ireland, Israel, India, Iraq, Iran, Iceland, Italy, Jordan, Japan, Kyrgyzstan, Cambodia, North Korea, South Korea, Kuwait, Kazakhstan, Laos, Lebanon, Liechtenstein, Sri Lanka, Lithuania, Luxembourg, Latvia, Monaco, Moldova, Montenegro, North Macedonia, Myanmar, Mongolia, Malta, Maldives, Malaysia, Netherlands, Norway, Nepal, Oman, Philippines, Pakistan, Poland, Portugal, Qatar, Romania, Serbia, Russia, Saudi Arabia, Sweden, Singapore, Slovenia, Slovakia, San Marino, Syria, Thailand, Tajikistan, Timor-Leste, Turkmenistan, Turkey, Taiwan, Ukraine, Uzbekistan, Vietnam, Yemen

How to Identify

A medium sized fern. It grows 60-90 cm high and 30-74 cm wide. The rhizome is tufted. It has broad, arching, vase shaped shuttlecocks. These are formed by the narrow, sword shaped, divided fronds. The fronds are leathery and dark green. They produce clear rows of brown spores underneath.

How to Grow

Propagation: Sow spores on the surface of humus-rich sterilized soil as soon as they are ripe, though spring sowing is also possible. Keep the compost moist, preferably by covering the pot with a plastic bag. Pot on small clumps of plantlets once large enough to handle and keep humid until well established. Do not plant outside until the ferns are at least 2 years old, and then only in a very well sheltered position. Division is best done in spring.

Medicinal Uses

None known.

Other Uses

Plants can be grown as ground cover, spaced approximately 60cm apart each way.

Wikipedia

Source ↗

Polystichum aculeatum, the hard shield-fern, is an evergreen fern native to Europe. It is most abundant in upland regions of the British Isles and western France, where it benefits from the combination of mild winters and moist summers, but also occurs more locally across most of Europe except northern Scandinavia, northern Russia; in the Mediterranean region it is confined to high altitudes. It grows on steep slopes in woodlands. it is sometimes considered an indicator of the presence of ancient woodlands.

Notes

There are about 200 Polystichum species.

Names & Synonyms

Pakis perisai keras, Quathode

Polypodium aculeatum Linn.and others
References (11)
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