Onoclea


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Onoclea

 

a genus of ferns of the family Aspidiaceae. There is a single species, the sensitive fern (O. sensibilis), which is distributed in Asia and North America. In the USSR it grows in Transbaikalia, along the Amur River, in the Primor’e, in southern Sakhalin, and on the Kuril Islands. The sensitive fern is a low herbaceous plant. It has a horizontal rhizome, several sterile pinnatifid fronds, and a single bipinnate frond that bears the sporangia. The sensitive fern grows in clusters in meadows, in mossy marshes, along rivers, and in mixed forests. It is cultivated as an ornamental.

References in periodicals archive ?
Ultrastructural features of the dividing meiocyte of Onoclea sensibilis.
Onoclea sensibilis in the Paleocene of North America, a dramatic example of structural and ecological staffs.
Onoclea sensibilis was second in importance with an I.
Heterozygosity for recessive lethals in homosporous fern populations: Theylpteris palustris and Onoclea sensibilis.
purpureum (Joe-Pye weed), Euthania graminifolia (grass-leaved goldenrod), Gentiana procera (fringed gentian), Iris versicolor(blue flag), Onoclea sensibilis (sensitive fern), Osmunda cinnamomea (cinnamon fern), and O.
leptostachyus, Eragrostis frankii (also at Millie's Pond), Eupatorium altissimum (on the dam), Ludwigia palustris, Onoclea sensibilis (wooded edge of the pond), Panicum capillare, Panicum dichotomiflorum, Penthorum sedoides, Phyla lanceolata, Polygonum lapathifolium, Potamogeton foliosus, Potamogeton nodosus, Scutellaria lateriflora (drying edge), Sida spinosa, and Xanthium strumarium.
37, 1 Nymphaea odorata -- -- -- Nyssa sylvatica -- -- -- Onoclea sensibilis -- -- -- Osmunda cinnamomea -- -- -- Osmunda regalis -- 7, 1.
Ferns in the mesic woods include Adiantum pedatum, Athyrium pycnocarpon, Botrychium virginianum, Cystopteris protrusa, Dryopteris goldiana, Dryopteris carthusiana, Onoclea sensibilis, and Polystichum acrostichoides (rare).