Bronze Fern (forma obliquum)

This is the most common grape fern throughout most of its range. Like other plants in this group, it normally only sends up one new frond per year in July which then days back the following May. The frond often turns from green to purplish-bronze during the winter, leading to the common name. An unusual trait is that the frond may present in one of two forms: either the normal form that resembles other plants in the genus (seen in this specimen), or a skeletonized form (see an example here http://www.projectnoah.org/spottings/820266003 )