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Summary
Physical Characteristics
Polypodium is a FERN growing to 0.5 m (1ft 8in) by 0.5 m (1ft 8in).
See above for USDA hardiness. It is hardy to UK zone 7. The seeds ripen from November to March.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil and can tolerate drought.
UK Hardiness Map
US Hardiness Map
Synonyms
Plant Habitats
Edible Uses
Root - raw or cooked[257] The root is sweetly liquorice-flavoured but is thin and fibrous and virtually inedible[200]. The root was commonly chewed for its very pleasant flavour by many native North American Indian tribes[256, 257]. It was often used as an appetiser, especially for children who would not eat[256]. Apart from its used as a pleasantly flavoured chew, it was seen as a famine food and was only used when there was a shortage of better foods[177, 257].
References More on Edible Uses
Medicinal Uses
Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.
Liquorice fern was employed medicinally by several native North American Indian tribes who used it especially as a treatment for a variety of chest complaints[257]. It is little, if at all, used in modern herbalism. The rhizomes are alterative, carminative, haemostatic and pectoral[257]. The raw rhizomes have been eaten, or an infusion has been used, in the treatment of coughs and colds, chest pains, shortness of breath and VD[257]. The roots have been chewed, and the juice swallowed, as a treatment for sore throats and the spitting or vomiting of blood[257]. A tea of the pounded boiled rhizomes, mixed with fir needles, has been used to treat measles[213]. Coughs have been treated by chewing and slowly swallowing the juice of the roasted rhizome[213]. The roots have been used in the treatment of colds and sore throats[256].
References More on Medicinal Uses
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Other Uses
References More on Other Uses
Cultivation details
Tolerates short periods of drought and direct sunlight, but it prefers bright filtered light[200]. Plants can be grown on a drystone wall[200]. Members of this genus are rarely if ever troubled by browsing deer[233]. There are several named varieties selected for their ornamental value[200]. Polypodium glycyrrhiza hybridizes with P. calirhiza and with P. hesperium to produce sterile triploids with misshapen spores[270]. For polyculture design as well as the above-ground architecture (form - tree, shrub etc. and size shown above) information on the habit and root pattern is also useful and given here if available. An evergreen. The plant growth habit is a clumper with limited spread [1-2]. The root pattern is rhizomatous with underground stems sending roots and shoots along their length [1-2].
References Carbon Farming Information and Carbon Sequestration Information
Temperature Converter
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Plant Propagation
Spores - best sown as soon as ripe on the surface of a humus-rich sterilized soil. Keep the compost moist, preferably by putting a plastic bag over the pot. Pot on small clumps of plantlets as soon as they are large enough to handle and keep humid until they are 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 in spring[200].
Other Names
If available other names are mentioned here
Native Range
TEMPERATE ASIA: Kamcatskij kraj,Russian Federation. NORTHERN AMERICA: Canada, Yukon, British Columbia, United States, Alaska, Idaho, Oregon, Washington, California,
Weed Potential
Right plant wrong place. We are currently updating this section.
Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.
Conservation Status
IUCN Red List of Threatened Plants Status :
Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.
Expert comment
Author
Eaton.
Botanical References
71200270
Links / References
For a list of references used on this page please go here
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