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Sceptridium biternatum, the southern grapefern or sparse-lobe grape fern , is a perennial fern in the family Ophioglossaceae, occurring in eastern North America.It occurs in "low woods, in hardwood and pine forests, in fields, and on roadsides."
Lauri Holts, the Parks and Open Spaces ecologist for the city of Eugene, said this red-brown aquatic fern, called Azolla, is often an attention-grabber for Eugenians who notice the ponds' change.
Parablechnum wattsii shows the typical life stages of a fern with distinct sporophyte and gametophyte stages. A distinctive feature of the Blechnaceae is the presence of separate fertile and sterile, photosynthetic fronds. The fertile frond produces numerous spores which are prolific and easily collected and propagated to mature plants.
Below are lists of extant fern families and subfamilies using the classification scheme proposed by the Pteridophyte Phylogeny Group in 2016 (PPG I). [1] The scheme is based on molecular phylogenetic studies, and also draws on earlier classifications, [1] particularly those by Smith et al. (2006), [2] Chase and Reveal (2009), [3] and Christenhusz et al. (2011). [4]
Adiantum lunulatum. Pteridaceae is a family of ferns in the order Polypodiales, [2] including some 1150 known species in ca 45 genera [3] (depending on taxonomic opinions), divided over five subfamilies. [4]
Athyrium filix-femina, the lady fern or common lady-fern, is a large, feathery species of fern native to temperate Asia, Europe, North Africa, Canada and the US. [1] It is often abundant (one of the more common ferns) in damp, shady woodland environments and is often grown for decoration.
The park affords an opportunity to observe a variety of plant and animal life. Hikers will find a dense forest of maples, chinquapin, and white oaks, while plants such as flowering dogwood, sassafras, coralberry, spicebush, redbud, and pawpaw blanket the cool forest floor. The waterfall creates a moist environment where ferns, mosses, and ...
As of December 2019, Plants of the World Online recognized the following species and hybrids: [1] ... (Island goldback fern) P. dealbata (C.Presl) Domin;