| Latin Name: | Polypodium glycyrrhiza |
| Common Name: | Licorice fern |
| Family: | Polypodiaceae |
| Synonyms: | |
| Known Hazards: | Although we have found no reports of toxicity for this species, a number of ferns contain carcinogens so some caution is advisable[200].
Many ferns also contain thiaminase, an enzyme that robs the body of its vitamin B complex. In small quantities this enzyme will do no harm to people eating an adequate diet that is rich in vitamin B, though large quantities can cause severe health problems. The enzyme is destroyed by heat or thorough drying, so cooking the plant will remove the thiaminase[172]. |
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Author: Eaton.
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| Habit: Fern |
| Habitat: Rocks, mossy tree trunks, logs etc, below 600m in coniferous and mixed forests in California[71]. |
| Height: 0.45 Width: 0.45 |
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].
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Propagation Notes:
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].
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