823
Tree fern
Cyathea
The order Cyatheales, which includes the tree ferns, is a taxonomic division of the fern class, Polypodiopsida. No clear morphological features characterize all of the Cyatheales, but DNA sequence data indicate the order is monophyletic. Some species in the Cyatheales have tree-like growth forms, but others have creeping rhizomes (stems). Some species have scales on the stems and leaves, while others have hairs. However, most plants in the Cyatheales are tree ferns and have trunk-like stems up to 20 metres (66 ft) tall. It is unclear how many times the tree form has evolved and been lost in the order.
17937
Cyatheales
823.jpg
image/jpeg
125837
2012-04-20T09:36:00Z
Vegetables
Other vegetables
Type 1
2011-12-19T23:09:02Z
2019-05-14T18:05:32Z
2
2
false
specific
true
FOOD00797