In a frond which is pinnate (feather-shaped), each leafy segment of the blade is called a pinna (plural pinnae), the … See more

Some fronds are not pinnately compound (or simple), but may be palmate, costapalmate, or bifurcate.
There is a spectrum from costapalmate to palmate. Costapalmate fronds are shaped like the pal… See more

Fern fronds often bear sporangia, where the plant's spores are formed, usually on the underside (abaxial surface) of the pinnae, but sometimes marginally or scattered over the frond. The sporangia are typically clustered in… See more

Fern fronds, as with all leaves, arise from the stem, either directly, or on an outgrowth from the stem termed a phyllopodium. The stem of a typical (leptosporangiate) fern is subterranean or horizontal on the surface of the ground… See more

Fronds may describe several "frondose" structures in non-plant organisms -- such as the entire bodies of thalloid organisms, or the superficially leaf-like structures developed by some animals and fungi. Examples i… See more

The palm frond has been a symbol of victory, triumph, peace, and eternal life originating in the ancient Mediterranean world. For example, in some Christian traditions, during Palm Sunday, Jesus’ entrance in… See more