Cerastium glomeratum Thuill., Caryophyllaceae

Click on an image for links to BIGGER PICTURES

Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Common name(s): [more details]

Chinese: qiu xu juan er

English: annual mouse-eared chickweed, clammy chickweed, sticky chickweed, sticky mouse-ear, sticky mouse-ear chickweed

French: céraiste aggloméré

Habit:  herb

Description:  "Annual, with all branches reproductive. Stems erect or ascending, (5)-10- 30-(50) cm tall, with spreading eglandular and shorter glandular hairs. Leaves elliptic to broadly obovate-spathulate, (5)-10-25-(30) x (2)-5-10-(15) mm, the lower narrowed gradually to base; hairs eglandular. Inflorescence compact; peduncles elongating at fruiting but pedicels always = or < calyx; peduncles and pedicels densely hairy with long eglandular and shorter glandular hairs. Bracts elliptic to obovate, always herbaceous, with dense glandular and eglandular hairs. Sepals (3.5)-4-5-(6) mm long, with narrow scarious margins, and glandular and long eglandular hairs overtopping apex. Petals slightly > or = sepals. Styles 0.5-0.8 mm long. Capsule cylindric, 2x length of calyx. Seeds 0.3-0.5 mm long, tuberculate"  (Webb et al., 1988; 479).

Description from Flora of Australia online.
Description from Flora of China online.
Description from Flora of North America online.

Habitat/ecology:  In New Zealand, "grassland, roadsides, waste land, pastures, ballast"  (Webb et al., 1988; 479).  In China, "forest margins, mountain slope grasslands, sandy riversides; 100-3700 m"  (Flora of China online).

Propagation:  Seed

Native range:  Northern Africa, temperate Europe and Asia from the Madeira and Canary Islands to Pakistan (GRIN).

Presence:

Pacific
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Australia (Pacific offshore islands) Lord Howe Island	Lord Howe Island	introduced invasive	Australian Biological Resources Study (2011)
Australia (Pacific offshore islands) Norfolk Islands	Norfolk Island	introduced invasive	Australian Biological Resources Study (2011)
Chile (offshore islands) Rapa Nui (Easter) Island	Rapa Nui (Easter) Island (Isla de Pasqua)	introduced	Skottsberg, Carl (1953) (p. 81)
Chile (offshore islands) Juan Fernández Islands	Isla Más a Tierra (Robinson Crusoe Island)	introduced	Skottsberg, Carl (1953) (p. 217)
Chile (offshore islands) Juan Fernández Islands	Isla Más a Tierra (Robinson Crusoe Island)	introduced invasive	Atkinson, Rachel/Sawyer, John (2011)
Chile (offshore islands) Juan Fernández Islands	Isla Más a Tierra (Robinson Crusoe Island)	introduced invasive	Danton, Philippe/Perrier, Christophe/Martinez Reyes, Guido (2006) (pp. 460, 464, 552)
Chile (offshore islands) Juan Fernández Islands	Isla Más Afuera (Alejandro Selkirk Island)	introduced	Skottsberg, Carl (1953) (p. 217)
Chile (offshore islands) Juan Fernández Islands	Isla Más Afuera (Alejandro Selkirk Island)	introduced invasive	Atkinson, Rachel/Sawyer, John (2011)
Chile (offshore islands) Juan Fernández Islands	Isla Más Afuera (Alejandro Selkirk Island)	introduced invasive	Danton, Philippe/Perrier, Christophe/Martinez Reyes, Guido (2006) (pp. 460, 464, 552)
Chile (offshore islands) Juan Fernández Islands	Isla Santa Clara	introduced invasive	Atkinson, Rachel/Sawyer, John (2011)
Chile (offshore islands) Juan Fernández Islands	Isla Santa Clara	introduced invasive	Danton, Philippe/Perrier, Christophe/Martinez Reyes, Guido (2006) (pp. 460, 464, 552) Voucher cited: Danton I(5/330)1676
State of Hawaii Hawaiian Islands	Maui Island	introduced invasive	Starr, Forest/Starr, Kim/Loope, Lloyd L. (2004) (p. 21) East Maui. Vouchers cited: Starr & Martz 020202-1 (BISH), Starr & Starr 020308-1 (BISH)
New Caledonia New Caledonia Archipelago	Île Grande Terre	introduced	MacKee, H. S. (1994) (p. 28) Vouchers cited: Pancher s.n., MacKee 5108, Schmid 3349 (NOU)
New Caledonia New Caledonia Archipelago	Île des Pins (Isle of Pines)	introduced	MacKee, H. S. (1994) (p. 28) Voucher cited: MacKee 22374
New Zealand (offshore islands) Kermadec Islands	Kermadec Islands	introduced invasive	Webb, C. J./Sykes, W. R./Garnock-Jones, P. J. (1988) (p. 479)

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)	New South Wales	introduced invasive	National Herbarium of New South Wales (2011)
Australia Australia (continental)	Northern Territory	introduced invasive	National Herbarium of New South Wales (2011)
Australia Australia (continental)	Queensland	introduced invasive	National Herbarium of New South Wales (2011)
Canada Province of British Columbia	Canada (British Columbia)	introduced	U.S. Dept. Agr., Nat. Res. Cons. Serv. (2011)
Canada Canada	Canada (country)	introduced	U.S. Dept. Agr., Nat. Res. Cons. Serv. (2011)
Chile (continental) Chile	Chile (Republic of)	introduced	Skottsberg, Carl (1953) (p. 217)
China China	China (People's Republic of)	uncertain if native	Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2011) Fujian, Guangxi, Guizhou, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Liaoning, Shandong, Xizang, Yunnan, Zhejiang
Japan Japan	Japan (country)	introduced	Mito, Toshikazu/Uesugi, Tetsuro (2004) (p. 181)
Mexico Mexico	Mexico (United Mexican States)	introduced invasive	Flora of North America Editorial Committee, eds. (2011)
New Zealand New Zealand	New Zealand (country)	introduced invasive	Webb, C. J./Sykes, W. R./Garnock-Jones, P. J. (1988) (p. 479)
United States (west coast) United States (west coast states)	USA (Oregon)	introduced	U.S. Dept. Agr., Nat. Res. Cons. Serv. (2011)
United States (west coast) United States (west coast states)	USA (California)	introduced	U.S. Dept. Agr., Nat. Res. Cons. Serv. (2011)
United States (west coast) United States (west coast states)	USA (Washington)	introduced	U.S. Dept. Agr., Nat. Res. Cons. Serv. (2011)

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. (2011)
United States (continental except west coast) United States (other states)	USA (Florida)	introduced	U.S. Dept. Agr., Nat. Res. Cons. Serv. (2011)

Additional information:
Additional online information about Cerastium glomeratum is available from the Hawaiian Ecosystems at Risk project (HEAR).

Information about Cerastium glomeratum as a weed (worldwide references) may be available from the Global Compendium of Weeds (GCW).

Taxonomic information about Cerastium glomeratum may be available from the Germplasm Resources Information Network (GRIN).

References:

Atkinson, Rachel/Sawyer, John. 2011. Naturalized species in the Juan Fernández Archipelago, Chile. Unpublished spreadsheet.

Australian Biological Resources Study. 2011. Flora of Australia Online. Australian Biological Resources Study, Canberra.

Danton, Philippe/Perrier, Christophe/Martinez Reyes, Guido. 2006. Nouveau catalogue de la flore vaculaire de l'archipel Juan Fernández (Chile) [Nuevo catálogo de la flora vacular del Archipélago Juan Fernández (Chile)]. Acta Bot. Gallica 153(4):399-587.

Flora of North America Editorial Committee, eds. 2011. Flora of North America North of Mexico (online edition).

MacKee, H. S. 1994. Catalogue des plantes introduites et cultivées en Nouvelle-Calédonie. Muséum National d'Histoire Naturelle, Paris, 164 p.

Mito, Toshikazu/Uesugi, Tetsuro. 2004. Invasive alien species in Japan: the status quo and the new regulation for prevention of their adverse effects. Global Environmental Research 8(2)/2004: 171-191.

National Herbarium of New South Wales. 2011. PlantNet: New South Wales Flora online. The Plant Information Network System of the Botanic Gardens Trust Version 2.0. Online resource.

Skottsberg, Carl. 1953. The natural history of Juan Fernandez and Easter Island. Vol. II, Botany. Almqvist &l; Wiksells, Uppsala. 960 pp.

Starr, Forest/Starr, Kim/Loope, Lloyd L. 2004. New plant records from the Hawaiian Archipelago. In: Evenhuis, Neal L. and Eldredge, Lucius G., eds. Records of the Hawaii Biological Survey for 2003. Part 2: Notes. Bishop Museum Occasional Papers. 79:20-30.

U. S. Government. 2011. Integrated Taxonomic Information System (ITIS) (on-line resource).

U.S. Dept. Agr., Agr. Res. Serv. 2011. National Genetic Resources Program. Germplasm Resources Information Network (GRIN). Online searchable database.

U.S. Dept. Agr., Nat. Res. Cons. Serv. 2011. The PLANTS Database. National Plant Data Center, Baton Rouge, LA 70874-4490 USA.

Webb, C. J./Sykes, W. R./Garnock-Jones, P. J. 1988. Flora of New Zealand, Volume IV: Naturalised pteridophytes, gymnosperms, dicotyledons. Botany Division, DSIR, Christchurch. 1365 pp.

Zhengyi, Wu/Raven, Peter H./Deyuan, Hong. 2011. Flora of China (online resource).