Struthiopteris spicant
Template:Short description Template:Speciesbox
Struthiopteris spicant, syn. Blechnum spicant, is a species of fern in the family Blechnaceae, known by the common names hard-fern[1] or deer fern. It is native to Europe, western Asia, northern Africa, and western North America.[2][3] Like some other species in the family Blechnaceae, it has two types of leaves. The sterile leaves have flat, wavy-margined leaflets 5 to 8 millimeters wide, while the fertile leaves have much narrower leaflets, each with two thick rows of sori on the underside.[4]
The Latin specific epithet spicant is of uncertain origin, possibly referring to a tufted or spiky habit.[5]
S. spicant is hardy down to Script error: No such module "convert". and evergreen, growing to Script error: No such module "convert"..[6] It has gained the Royal Horticultural Society's Award of Garden Merit.[7]
The species was first described in 1753 by Carl Linnaeus as Osmunda spicant. It has been placed in a wide range of genera, including Blechnum (as Blechnum spicant).[2] In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), it is placed in the genus Struthiopteris, in the subfamily Blechnoideae.[8]
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A sterile leaf
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A fertile leaf with sori
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Young fern unfurling
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References
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- ↑ Template:BSBI 2007
- ↑ a b Script error: No such module "citation/CS1".
- ↑ USDA Plants Profile
- ↑ Jepson Manual Treatment
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External links
- Video footage of Struthiopteris spicant