Southern Appalachian Digital Collections

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Ferns of the Great Smoky Mountains National Park

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  • wcu_great_smoky_mtns-15183.jpg
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  • ONCE-CUT FERNS GLADE FERN 36" D Athyrium pycnocarpon is most often found in forest openings, and where considerable moisture is present. There are two kinds of leaves, the infertile ones that grow throughout the season, and the thinner fertile leaves of late summer. Each leaflet is on a short stem, except those at the tip end. The sori are long and narrow. Glade fern is also called narrow-leaved spleenwort. NETVEIN CHAIN FERN 24" D Woodwardia areolata has alternate leaflets that are of a rough texture, from veins projecting above the surface. A strip of leafy tissue connects the ajacent leaflets along the stem. The fertile leaves are thinner than the others, and do not appear until fall. This is an acid-soil plant, partial to damp, shaded locations. SENSITIVE FERN 24" D Onoclea sensibilis is sensitive to cold weather. The lower leaflets, opposite in arrangement, are on individual stems, while the majority of the leaflets are joined along the stem. The thin fertile leaves develope in the fall, forming bead-like spore clusters that may last through the winter. This fern is also known as bead fern. 8 CHRISTMAS FERN 36" E Polystichum acrostichoides remains green through the winter season. It is identified easily by the mitten- shaped leaflet. The lower leaflets are sterile, while the smaller fertile leaflets are crowded along the upper portion of the leaf. The sori are round. Young plants of this species are often confusing, as they may lack both the characteristic marginal teeth and the "thumb of the mitten." uncut leaf once-cut leaf twice-cut leaf thrice-cut leaf
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Object’s are ‘parent’ level descriptions to ‘children’ items, (e.g. a book with pages).