Pacific Island Ecosystems at Risk (PIER)

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Pteris multifida
Poir., Pteridaceae
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Present on Pacific Islands?  no

Primarily a threat at high elevations?  no

Risk assessment results:  Reject, score: 9 (Go to the risk assessment).

Common name(s): [more details]

English: Chinese brake, Huguenot fern, saw-leaved bracken, spider brake, spider fern

Habit:  fern

Description:  "Stems slender, short-creeping, densely scaly; scales dark reddish brown to chestnut brown. Leaves clustered, 1-6 dm. Petiole pale or brownish, 5-30 cm, scaly proximally, otherwise glabrous. Blade oblong to oblanceolate, irregularly and pedately divided proximally (as in Pteris cretica ) and pinnately divided distally, 10-35 x 13-25 cm; rachis slightly and evenly winged, wing constricted above each pinna pair. Pinnae 3-7 pairs, widely spaced, distal pinnae simple, adnate and decurrent to rachis; pinnae remaining green through winter, not articulate to rachis, lanceolate to linear; sterile pinnae wider than fertile pinnae (to ca. 1.2 cm), margins irregularly serrate to serrulate; fertile pinnae mostly less than 5 mm, margins entire to serrate at apex; adaxial costae with sparse, septate hairs; proximal pinnae with 1-4 elongate basal segments. Veins free, simple or forked. Sori narrow, blade tissue exposed abaxially"  (Flora of North America online).

Habitat/ecology:  "On old shady walls and masonry around cemeteries, dumps, and towns"  (Flora of North America online).

Propagation:  Spores

Native range:  Eastern and southeastern Asia (GRIN).

Presence:

Pacific Rim
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Cambodia
Cambodia
Cambodia (Kingdom of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
China
China
China (People's Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
China
China
Hong Kong native
Wu, Te-lin (2001) (p. 16)
Indonesia
Indonesia
Indonesia (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Japan
Japan
Japan (country) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Singapore
Singapore
Singapore (Republic of) native
Chong, Kwek Yan/Tan, Hugh T. W./Corlett, Richard T. (2009) (p. 73)
Common
Taiwan
Taiwan Island
Taiwan Island native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Thailand
Thailand
Thailand (Kingdom of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
United States (west coast)
United States (west coast states)
USA (California) introduced
U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)
Vietnam
Vietnam
Vietnam (Socialist Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
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 8 MAR 2010 and was last updated on 10 MAR 2010.