Spinulose shield fern (Dryopteris carthusiana)

Dryopteris carthusiana

Description 2

Fiddleheads: emerge early spring, hairless, papery tan scales scattered along stem
Fronds : 30 inches long and 8 inches wide, tapering to a sharp point at the tip, twice compound though lowest pair of branches at base of frond are again compound, leaflets lobed, sometimes divided almost to mid-nerve, toothed, teeth with a bristle-like tip, veins forked
Spores : groups of spores on underside of leaf, circular and arranged mostly in a row on both sides of mid-vein on a leaflet lobe, not all leaves have spores, lowest branches on a fertile frond typically have no spores
Fruiting season : Summer
Height: 6-30 inches
Habitat : moist to swampy woods, thickets, stream banks

Fontes e Créditos

  1. (c) Christopher Tracey, alguns direitos reservados (CC BY-NC-SA), uploaded by Christopher Tracey
  2. (c) Minnesota Scientific and Natural Areas, alguns direitos reservados (CC BY-SA)

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