Compilation
Osmunda virginiana

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Name

Identification
Osmunda virginiana L. [family OPHIOGLOSSACEAE ] (stored under name); Botrychium virginianum (L.) O.P.Swartz [family OPHIOGLOSSACEAE ] Verified by Elizabeth Fortson Wells,
Related name
  • Osmunda virginiana
  • Botrychium virginianum
  • Botrychium dissectum
Common name
  • botryche de virginie, Flora of North America Vol. 2
  • Rattlesnake fern, Flora of North America Vol. 2
  • common grapefern, Flora of North America Vol. 2

Flora

Entry for Botrychium virginianum (Linnaeus) Swartz [family OPHIOGLOSSACEAE]
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 2,
Names
Botrychium virginianum (Linnaeus) Swartz [family OPHIOGLOSSACEAE], J. Bot. (Schrader), 1800(2): 111. 1801
Osmunda virginiana Linnaeus [family OSMUNDACEAE], Sp. Pl., 2: 1064. 1753
Treatment Author(s)
Warren H. Wagner Jr.
Florence S. Wagner
Information
Trophophore sessile; blade pale green, 3--4-pinnate, to 25 × 33 cm, thin, herbaceous. Pinnae to 12 pairs, usually approximate to overlapping, slightly ascending, distance between 1st and 2d pinnae not or slightly more than between 2d and 3d pairs, lanceolate, divided to tip. Pinnules lanceolate and deeply lobed, lobes linear, serrate, apex pointed, venation pinnate, midrib present. Sporophores 2-pinnate, 0.5--1.5(--2) times length of trophophore. 2 n =184.
Phenology
Leaves seasonal, appearing in early spring and dying in late summer
Altitude range
0--1500 m
Distribution
all states except Calif.MexicoCentral AmericaSouth America in BrazilEcuadorPeruEurasia.USA ColombiaCanada Alta.Canada B.C.Canada Man.Canada N.B.Canada Nfld.Canada N.W.T.Canada N.S.Canada Ont.Canada P.E.I.Canada Que.Canada Sask.Canada Yukon
Discussion
Botrychium virginianum is the most widespread Botrychium in North America.

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