Silver tree fern, or ponga (Cyathea dealbata), is native to New Zealand's montane forests--at altitudes between 1,500 and 4,000 feet--and lowlands. Standing up to 33 feet high, it has large, horizontal fronds atop thin, silver stalks. The fern is recognizable from its green frond's silvery-white undersides.
About this Author
A freelance writer, Judy Wolfe has owned Prose for the Pros, a freelance writing business, since 2006. She's been an inveterate traveler since 1961 and draws on her travel experiences to provide articles for such websites as Chincoteague Island Vacations and Berlin Dude. Wolfe holds a Bachelor of Arts in literature from California State University at Pomona.