Blechnum spicant
Hard Fern
Sterile leaves growing in flat tufts from 15 to 50 cm tall; at the center, some fertile leaves pointing upward
Blade leathery
Sori linear
Fertile leaves only in favorable conditions
BLECHNACEAE
genus Blechnum
Growth in spring, fructification in summer, sterile leaves disappearing the next year
Woods on acidic soils, wet slopes, up to 2000 m in altitude
Rare in Vercors : associated with sandy soils ( miocene mollasse): St Julien-en-Vercors, Les Ecouges, Gobert trail.