Ads
related to: plants that look like ferns
Search results
Results From The WOW.Com Content Network
Bracken (Pteridium) is a genus of large, coarse ferns in the family Dennstaedtiaceae. Ferns (Pteridophyta) are vascular plants that have alternating generations, large plants that produce spores and small plants that produce sex cells (eggs and sperm). Brackens are noted for their large, highly divided leaves.
The ferns (Polypodiopsida or Polypodiophyta) are a group of vascular plants (plants with xylem and phloem) that reproduce via spores and have neither seeds nor flowers.They differ from mosses by being vascular, i.e., having specialized tissues that conduct water and nutrients, and in having life cycles in which the branched sporophyte is the dominant phase.
Like other ferns, members of the Marsileaceae produce spores, but not seeds when they reproduce. Unlike other ferns, the spores in this family are produced inside sporocarps . These are hairy, short-stalked, bean -shaped structures usually 3 to 8 mm in diameter [ 1 ] with a hardened outer covering.
Tree ferns are arborescent (tree-like) ferns that grow with a trunk elevating the fronds above ground level, making them trees. Many extant tree ferns are members of the order Cyatheales , to which belong the families Cyatheaceae (scaly tree ferns), Dicksoniaceae , Metaxyaceae , and Cibotiaceae .
The mature foliage looks very similar between both groups, but the young emerging leaves of a cycad resemble a fiddlehead fern before they unfold and take their place in the rosette, while the leaves of palms are just small versions of the mature frond.
Since it is a fern, P. glycyrrhiza reproduces by spores; the spores form in two rows of sori, which look like large spots on the undersides of the leaves. The sori range in color from yellow to orange to brown. Plants that are not thriving may have no sori or the sori may be patchy and will not appear in neat rows.