The American Climbing Fern (Lygodium palmatum) is a unique twining fern native to eastern North America. Unlike typical ferns, its fronds climb and twine around vegetation, reaching several meters in length.
| Family: | Schizaeaceae |
| Genus: | Lygodium (ly-GO-dee-um) |
| Species: | palmatum (pahl-MAY-tum) |
| Synonym: | Cteisium palmatum |
| Synonym: | Gisopteris palmata |
| Synonym: | Hydroglossum palmatum |
The rhizome is slender and creeping. The fronds are indeterminate, twining, and can grow 2–5 m long. Pinnae are palmately lobed, resembling a hand. Fertile pinnae are contracted and bear sporangia along the margins.
Found in moist, acidic woods, thickets, and stream banks. It requires a support structure to climb. In cultivation, provide consistent moisture, partial shade, and acidic soil. It is difficult to transplant due to delicate rhizomes.
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