| Family | Brassicaceae | 
    
      | Scientific name | Thlaspi arvense L. | 
    
      | Synonyms | Crucifera thlaspi E. H. L. Krause; Teruncias arvensis (L.) Lunell; Thlaspi collinum Marschall von Bieberstein; Thlaspidium arvense (L.) Bubani | 
    
      | Common name | (Japanese common name) gunbai-nazu-na (グンバイナズナ, 軍配薺 [meaning: gunbai stroking
      green (gunbai = a military leader's fan)]) | 
    
      | (English common name) fan weed, fiels pennycress | 
    
      | Distribution | (Japan) Hokkaido, Honshu, Shikoku, Kyushu, Okinawa | 
    
      | (Other nations) [native] Europa | 
    
      | Habitat | Field | 
    
      | Chromosomal number | 2n=14 | 
    
      | Description | Plants electing 10-80cm tall. Flowers yellow each 3.5mm long, flowering
      Spring to Summer. Winter annual plants. | 
    
      | Reference | Thlaspi arvense L. | 
    
      | Thlaspi arvense L. | 
    
      | Method for selective herbicidal treatment of cereal and carrot cultures (US Patent 3994714/1976) | 
    
      | Herbicidal pyridazinylimidazolidinone compounds (US Patent 4604127/1986) | 
    
      | Hybridization using cytoplasmic male sterility, cytoplasmic herbicide tolerance, and herbicide tolerance from nuclear genes (US Patent 4658085/1987) | 
    
      | Herbicidal method comprising the use of diflufenican (US Patent 4940484/1990) | 
    
      | Cyclic diones (US Patent 5114461/1992) | 
    
      | Nucleic acid molecules encoding cytochrome P450-type proteins involved in the brassinosteroid synthesis in plants (US Patent 5952545/1999) | 
    
      | Synergistic herbicidal mixtures (US Patent 6645911/2003) | 
    
      | Selective herbicides based on a substituted phenyl sulfonlyl amino carbonyl triazolinone (US Patent 6562760/2003) | 
    
      | Trace element phytoremediation (US Patent 6974896/2005) | 
    
      | Heavy metal phytoremediation (US Patent 7034202/2006) | 
    
      | Cytochrome P450 oxygenases and their uses (US Patent 7005283/2006) | 
    
      | Note | Naturalized plant (first recorded by Thunberg in 1784). |