Pacific Island Ecosystems at Risk (PIER)

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Eragrostis pectinacea
(Michx.) Nees ex Jedwabn., Poaceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Other Latin names:  Poa pectinacea Michx.

Common name(s): [more details]

English: Carolina love grass, pectinate lovegrass, purple lovegrass, spreading lovegrass, tufted love grass

Habit:  grass

Description:  "Annuals; culms erect and decumbent at base, or prostrate, 1.5-4 dm tall, diffusely branched at base, glabrous.  Sheaths often purple at base, 3-6 cm long, glabrous, collar with stiff hairs 2-2.5 mm long; ligule 0.5-1 mm long, ciliate; blades 5-18 cm long, 1-3 mm wide, upper surface scaberulous, lower surface glabrous.  Inflorescences paniculate, diffuse, 7-20 cm long, the lower axils sparsely bearded; spikelets usually silvery, sometimes purple-tinged, 5-18-flowered, linear, 3-8 mm long, 1-1.5 mm wide, as long as or shorter than the pedicels, appressed along the main branches; glumes 1-nerved, smooth except the keels, apex acute, first glume ca. 1 mm long, second glume ca. 1.5 mm long; lemmas somewhat imbricate, smooth, upper part of keel slightly scabrous, apex acute, first lemma 1.5-2 mm long, lateral nerves distinct but not prominent; palea ca. 1.5 mm long, keel scabrous.  Caryopsis reddish brown, obovoid, slightly flattened ventrally, 0.8-1.2 mm long"  (Wagner et al., 1999; p. 1545).

Description from GrassBase.

Habitat/ecology:  In Hawai‘i, "naturalized in moist to wet sites along roadsides, borders of cane fields, in pastures and other disturbed urban or non-urban areas, 0-550 m"  (Wagner et al., 1999; p. 1545).

Propagation:  Seed

Native range:  North and South America; naturalized elsewhere (GRIN).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Federated States of Micronesia
Chuuk Islands
Chuuk Islands introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1987) (p. 42)
Federated States of Micronesia
Kosrae Island
Kosrae Island   Lorence, David H./Flynn, Timothy (2010) (p. 10)
Voucher cited: Flynn 6041 (PTBG)
Federated States of Micronesia
Kosrae Island
Kosrae Island   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1997) (voucher ID: PTBG 24880)
Taxon name on voucher: Eragrostis pectinacea (Michx.) Nees
State of Hawaii
Hawaiian Islands
Hawai‘i (Big) Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 1545)
State of Hawaii
Hawaiian Islands
Kaho‘olawe Island introduced
invasive
Oppenheimer, Hank L. (2006) (p. 13)
Voucher cited: Oppenheimer, G. Hansen & J. Bruch H10404 (BISH)
State of Hawaii
Hawaiian Islands
Kaua‘i Island introduced
invasive
Lorence, David H./Flynn, Timothy W./Wagner, Warren L. (1995) (p. 45)
"Naturalized in lowland dry secondary shrubland". Voucher cited: T. Flynn et al. 3287 (BISH, BM, F, K, MO, PTBG, US)
State of Hawaii
Hawaiian Islands
Kaua‘i Island extirpated
Snow, Neil/Lau, Alex (2010) (p. 51)
var. meserrima (E. Fourn) Reeder. Voucher cited: E.Y. Hosaka 1647 (BISH)
State of Hawaii
Hawaiian Islands
Lāna‘i Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 1545)
Voucher cited: Munro s.n. (BISH)
State of Hawaii
Hawaiian Islands
Maui Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 1545)
State of Hawaii
Hawaiian Islands
Moloka‘i Island introduced
invasive
Herbst, Derral R./Clayton, W. D. (1998) (p. 27)
"Moist soil in a small erosion gully, 1200 ft.". Vouchers cited: Char & Hall 83.006 (BISH), Cuddihy 1223 (BISH)
State of Hawaii
Hawaiian Islands
O‘ahu Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 1545)
Marshall Islands
Ratak Chain
Majuro (Mãjro) Atoll introduced
invasive
Vander Velde, Nancy (2003) (p. 134)
Small patch. Identification not positive.
Pacific Rim
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Australia
Australia (continental)
Australia (continental)   Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. (1979) (p. 145)
Central America
Central America (Pacific rim)
Costa Rica (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Central America
Central America (Pacific rim)
El Salvador (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Central America
Central America (Pacific rim)
Guatemala (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Central America
Central America (Pacific rim)
Honduras (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Central America
Central America (Pacific rim)
Panama (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)
South America (Pacific rim)
South America (Pacific rim)
Colombia (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
South America (Pacific rim)
South America (Pacific rim)
Perú (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Taiwan
Taiwan Island
Taiwan Island   Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. (1979) (p. 145)
Thailand
Thailand
Thailand (Kingdom of)   Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. (1979) (p. 145)
United States (west coast)
United States (west coast states)
USA (Oregon) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
United States (west coast)
United States (west coast states)
USA (California) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
United States (west coast)
United States (west coast states)
USA (Washington) 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
Canada (except British Colombia)
Canada
Canada (country) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
United States (continental except west coast)
United States (other states)
United States (other states) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)


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This page was created on 9 FEB 2007 and was last updated on 25 APR 2013.