イラクサ属
Urtica morifolia Canary Islands (endemic)
Urtica parviflora Himalaya (lower altitudes)
Urtica pilulifera (Roman nettle), southern Europe
エゾイラクサUrtica platyphylla Wedd. 1856-1857, China, Japan
Urtica procera Mühlenberg (tall nettle), North America
Urtica pubescens Ledeb. 1833, Southwestern Russia east to central Asia
Urtica rupestris Sicily (endemic)
Urtica sondenii (Simmons) Avrorin ex Geltman, 1988, northeastern Europe, northern Asia
Urtica taiwaniana Taiwan
イラクサUrtica thunbergiana Japan, Taiwan
Urtica triangularisa
ヒメイラクサUrtica urens L. 1753 (dwarf nettle or annual nettle), Europe, North America