Pacific Island Ecosystems at Risk (PIER)

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Blutaparon vermiculare
(L.) Mears, Amaranthaceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Risk assessment results:  High risk, score: 7 (Go to the risk assessment).

Other Latin names:  Caraxeron vermicularis (L.) Raf.; Gomphrena vermicularis L.; Philoxerus vermicularis (L.) Sm.

Common name(s): [more details]

English: saltweed, samphire, silverhead, silverweed

Habit:  herb

Description:  "Plants perennial or occasionally annual, 3-20 dm. Stems mostly prostrate with ascending branches, much-branched, glabrous. Leaf blades linear to linear lanceolate or oblanceolate, 15-55 x 2-12 mm. Inflorescences: heads white or pinkish (drying silvery white), globose or cylindric, 7-30 x 7-10 mm; bracteoles slightly shorter than flowers. Flowers very short-pedicellate; tepals connate basally, white, oblong, dorsiventrally compressed, thickened basally, 3-5 mm, chartaceous, apex of outer tepals obtuse, apex of inner tepals acute, spinose-tipped, densely villose. Utricles indehiscent or splitting irregularly, included in tepals, 1.3 mm. Seeds 0.8-1 mm"  (Flora of North America online).

Habitat/ecology:  In North America (native), "saline soils, sands of beaches, dunes, sand bars; 0-10 m"  (Flora of North America online).

Propagation:  Seed

Native range:  The Americas, West Africa, western Angola (GRIN).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
State of Hawaii
Hawaiian Islands
O‘ahu Island introduced
invasive
Wagner, Warren L./Herbst, Derral R. (1995) (pp. 14-15)
Voucher cited: Char s.n. (BISH)
Pacific Rim
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Colombia
Colombia
Colombia (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Costa Rica
Costa Rica
Costa Rica (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Ecuador (Mainland)
Ecuador
Ecuador (Republic of) (continental) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Guatemala
Guatemala
Guatemala (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Mexico
Mexico
Mexico (United Mexican States) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Panama
Panama
Panama (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) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Texas
United States (continental except west coast)
United States (other states)
USA (Florida) native
U.S. Dept. Agr., Agr. Res. 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 22 NOV 2010 and was last updated on 30 DEC 2011.