Botrychium virginianum

(Linnaeus) Swartz

J. Bot. (Schrader) 1800(2): 111. 1801.

Common names: Rattlesnake fern common grapefern botryche de virginie
Basionym: Osmunda virginiana Linnaeus
Treatment appears in FNA Volume 2.
Revision as of 15:47, 18 September 2019 by FNA>Volume Importer

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. 2n =184.


Phenology: Leaves seasonal, appearing in early spring and dying in late summer.
Habitat: Common to abundant, especially in shaded forests and shrubby second growth, rare or absent in arid regions
Elevation: 0–1500 m

Distribution

V2 31-distribution-map.gif

Alta., B.C., Man., N.B., Nfld., N.W.T., N.S., Ont., P.E.I., Que., Sask., Yukon, all states except Calif., Mexico, Central America, South America in Brazil, Colombia, Ecuador, Peru, Eurasia.

Discussion

Botrychium virginianum is the most widespread Botrychium in North America.

Selected References

None.

Lower Taxa

None.
... more about "Botrychium virginianum"
Warren H. Wagner Jr. +  and Florence S. Wagner +
(Linnaeus) Swartz +
Osmunda virginiana +
Rattlesnake fern +, common grapefern +  and botryche de virginie +
Alta. +, B.C. +, Man. +, N.B. +, Nfld. +, N.W.T. +, N.S. +, Ont. +, P.E.I. +, Que. +, Sask. +, Yukon +, all states except Calif. +, Mexico +, Central America +, South America in Brazil +, Colombia +, Ecuador +, Peru +  and Eurasia. +
0–1500 m +
Common to abundant, especially in shaded forests and shrubby second growth, rare or absent in arid regions +
Leaves seasonal, appearing in early spring and dying in late summer. +
J. Bot. (Schrader) +
Botrychium virginianum +
Botrychium subg. Osmundopteris +
species +