Cerastium glomeratum

Basic information
Scientific name	Cerastium glomeratum	Click to magnify
Common names	Sticky chickweed，Mouse-ear chickweed, Glomerate mouse-ear
Higher taxon	Caryophyllaceae, Caryophyllales, Magnoliopsida, Magnoliophyta
Natural range	Europe.
Habitat	Farm area, riverside, roadside, vacancy, around montane area, etc.

Invasion information
Range in Japan	Hokkaido, Honshu, and Shikoku Islands.
Origin	Unknown.
Date	The first record was in 1910s at Yokohama, Kanagawa Pref.
Route	Accidental: Details unknown.
Impact	Competition with native plants and crops. Parasite insects and viruses Native organism(s) affected: Native plants (such as Cerastium fontanum subsp. vulgare var. angustifolium), crops, etc.
Regulation in Japan	No action for prevention, mitigation, control, or eradication.
Introduced range in other countries	Asia, N Africa, Oceania, N and S America.

Reference	Notes
Jpn Assoc Advanc Phyto-Regul & Inst Contr Agrochem, Minist Agr, China (2000) Chinese Colored Weed Illustrated Book. Zenkoku-Noson-Kyoiku-Kyokai, Tokyo (in Chn and Eng) Osada (1976) Colored Illustrations of Naturalized Plants of Japan. Hoikusha, Osaka (in Jpn) Satake et al. (1982) Wild Flowers of Japan, Herbaceous Plants [II]. Heibonsha, Tokyo (in Jpn) etc.