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Fern Leafed Tree Identification

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Fern Tree Gully image by Heng kong Chen from Fotolia.com

Irregular palm-shaped fronds make fern trees immediately identifiable. They are tropical and subtropical plants that will often pull nutrients and water directly from the air, meaning soil requirements for the tree are minimal. They are found mostly in the southern region of the United States.

Identification

Any fern that has a trunk elevating its leaves above ground level is a fern-leaved tree. Tree ferns belong to the Cyatheaceae and Dicksoniaceae families. Botanists look at the plants' organs to help identify and categorize the plants. The shape of the leaves and the type of stem are the most important visual factors for these types of trees. Tree ferns are nonflowering plants that are easily transplanted from the soil as long as the roots are kept intact.

  • Irregular palm-shaped fronds make fern trees immediately identifiable.
  • Any fern that has a trunk elevating its leaves above ground level is a fern-leaved tree.

Climate

Identifying a plant's natural habitat and climate aids botanists in vegetative identification. Through the process of elimination, botanists can determine a plant's identity by where it is found. As a tropical and subtropical plant, it prefers a long growing season, where it can remain evergreen. Tree ferns require a warm, humid climate to keep their leaves full of moisture

Leaves

Tree fern fronds are very large leaves and generally divided, otherwise described as multiple-pinnate. They can be rough to the touch, with tiny hairs growing from the base of the plant. When the tree reaches a certain level of maturity, the young fronds will extend from the stem in coils, uncurling with age. Their leaves are wide and flat, designed to minimize moisture loss and maximize the photosynthetic surface area.

  • Identifying a plant's natural habitat and climate aids botanists in vegetative identification.
  • When the tree reaches a certain level of maturity, the young fronds will extend from the stem in coils, uncurling with age.

Reproductive Cues

Unlike many other trees, tree ferns reproduce through the use of spores. This allows the plant to achieve widespread distribution into the windstream. Unfortunately, because the chances of reproducing are typically low, the plant can quickly become highly localized. Tree ferns that are very localized are easily threatened by the devastating effects of deforestation.

Further Information

When botanists cannot identify a plant simply by looking at it, they take a look at the cellular structure of the plant. The way cells are organized within the stems, leaves and roots of the tree can be unique with tropical plants. Spores are unique cells not commonly found within trees but are used reproductively by tree ferns.

  • Unlike many other trees, tree ferns reproduce through the use of spores.
  • Unfortunately, because the chances of reproducing are typically low, the plant can quickly become highly localized.

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