Neoblechnum

Neoblechnum is a genus of ferns in the family Blechnaceae, subfamily Blechnoideae, with a single species Neoblechnum brasiliense, according to the Pteridophyte Phylogeny Group classification of 2016 (PPG I). The genus is accepted in a 2016 classification of the family Blechnaceae, but other sources sink it into a very broadly defined "Blechnum", equivalent to the whole of the PPG I subfamily; the species is then known as Blechnum brasiliense. It is called Brazilian dwarf tree fern, red Brazilian tree fern, and red dwarf tree fern.
Description.
The erect rhizome of "Neoblechnum brasiliense" forms a thin stipe-stubbed trunk up to in height. The new foliage is a striking deep red color. As the fronds mature it turns to a glossy green. On some selections, the new fronds emerge a pinkish-red.
Distribution.
The fern is native to the warm and humid subtropical forests of South America.
Habitats include:
Cultivation.
"Neoblechnum brasiliense" is cultivated as an ornamental plant. In cultivation in the UK (under the synonym "Blechnum brasiliense") it has gained the Royal Horticultural Society's Award of Garden Merit. 
As it will not tolerate temperatures below it must be grown under glass all year in temperate regions.
Cultivars.
Named cultivars include: