Pacific Island Ecosystems at Risk (PIER)

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Lygodium palmatum
(Bernh.) Sw., Lygodiaceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Other Latin names:  Gisopteris palmata Bernh.

Common name(s): [more details]

English: American climbing fern, creeping fern, Hartford fern, Windsor fern

Habit:  fern

Description:  "Stems long-creeping. Leaves to ca. 3 m. Petioles borne 1-4 cm apart, 9-15 cm. Sterile pinnae on 1-2 cm stalks, very broadly ovate, deeply and palmately 3-7-lobed, 1-4 " 2-6 cm; ultimate lobes triangular-elongate to oblong; lobe apex acute to blunt or rounded; segments not articulate to petiolules, not leaving wiry stalks when detached; blade tissue pubescent abaxially with transparent hairs. Fertile pinnae stalked to ca. 1.5 cm, then " irregularly 3-5-forked or lobed, ultimate divisions palmately and sometimes irregularly lobed, smaller than sterile pinnules, 2-4 " 2-8 cm, otherwise similar; ultimate segments narrowly triangular to linear-triangular." (Flora of North America)

Habitat/ecology:  Moist acid soil of thickets, marshes and open woods (Fernald, 1970; p. 25).

Propagation:  Spores

Native range:  Eastern United States (GRIN).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Solomon Islands
Solomon Islands
Solomon Islands   Swarbrick, John T. (1997) (p. 94)
Also reported from
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
United States (continental except west coast)
United States (other states)
United States (other states) introduced
U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)
United States (continental except west coast)
United States (other states)
USA (Florida) introduced
U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)


Need more info? Have questions? Comments? Information to contribute? Contact PIER! (pier@hear.org)

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This page was created on 1 JAN 1999 and was last updated on 4 JAN 2008.