Description ²

• Fiddleheads: emerge early spring on slender, hairless, green to purple-brown stems, as leaves unfurl division of the stem into 3 parts becomes apparent
• Fronds : single compound leaf, appears like a whorl of 3 leaves, leaf is generally triangular in outline, up to 7 inches long and about as wide, with 6 to 10 pair of branches oppositely arranged, lowest pair of branches typically twice compound, triangular in outline
• Spores : groups of spores found on underside of leaf, circular and arranged around the edges of a pinnule, at the tip of a vein, ften merge at maturity, ripen to dark brown, not all leaves have spores
• Fruiting season : Summer
• Height: 4-15 inches
• Habitat : coniferous and mixed forest

Fontes e Créditos

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

Mais informações

• BioDiversity4All taxon page
• Biodiversity Heritage Library
• BOLD Systems BIN search
• eFloras.org
• Flora of North America (beta)
• Global Biodiversity Information Facility (GBIF)
• Go Botany
• HOSTS - a Database of the World's Lepidopteran Hostplants
• IPNI (with links to POWO, WFO, and BHL)
• NatureServe Explorer 2.0
• NBN Atlas
• SEINet Symbiota portals
• Tropicos
• USDA PLANTS database
• VASCAN by Canadensys
• World Flora Online
• 日本のレッドデータ検索システム
• 植物和名−学名インデックス YList

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