
1) Fern genus 2) Genus blechnum
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https://www.crosswordclues.com/clue/blechnum

Blechnum (hard fern) is a genus of between 150–220 species of ferns with a cosmopolitan distribution, in the family Blechnaceae in the eupolypods II clade of the order Polypodiales. By far the greatest species diversity is in tropical regions of the Southern Hemisphere, with only a few species reaching cool temperate latitudes in the Southern He...
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http://en.wikipedia.org/wiki/Blechnum

(from the article `fern`) ...ferns)Rhizome scales nonclathrate; sori along midveins, the indusia opening inward; young foliage commonly red, turning to green; genera number 5 ...
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http://www.britannica.com/eb/a-z/b/77

(Deer Fern, Hard Fern) This group of Ferns is found in Brazil, the West Indies, and other warm and temperate countries. Some types have dwarf, tufted growth, while others grow up to 4 feet high. Those found in subtropical climates need a minimum temperature of 50 degrees and those from tropical countries need a minimum temperature of 60 degrees. B....
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http://www.encyclo.co.uk/local/10004

[
n] - in some classification systems placed in family Polypodiaceae
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http://www.webdictionary.co.uk/definition.php?query=Blechnum
genus Blechnum noun in some classification systems placed in family Polypodiaceae; terrestrial ferns of cosmopolitan distribution mainly in southern hemisphere: hard ferns
Found on
https://www.encyclo.co.uk/local/20974
No exact match found.