Fatoua villosa




Family Moraceae
Scientific name Fatoua villosa (Thunberg) Nakai
Synonyms Fatoua japonica Blume; Urtica japonica Thunberg; Urtica villosa Thunberg
Common name (Japanese common name) kuwa kusa [kuwa weed (kuwa = Morus bombycis)]
(English common name) hairy crabweed
Distribution (Japan) Honshu, Shikoku, Kyushu, Okinawa
(Other nations) Korea, China, Taiwan, Philippines, Malaysia, Indonesia, New Guinea, Australia
Chromosomal number n=13, 2n=26
Description Plants electing 30-80cm. Leaves 3-9cm length, 2-5cm width. Flowers white, flowering in September to October. Annual plants.
Reference Fatoua villosa (Thunb.) Nakai
Fatoua villosa (Thunberg) Nakai
Substituted phenyl (thiono)carbamates, herbicidal compositions containing the same as active ingredient and method of controlling weeds (US Patent 4491465/1885)
Note common



September 2006
at lowland field
September 2006
at lowland field
September 2006
at lowland field