Sonchus arvensis subsp. humilis Sonchus arvensis subsp. arvensis Sonchus arvensis subsp. uliginosus
Sonchus pratensis Sonchus arvensis f. arvensis Sonchus vulgaris subsp. vulgaris Sonchus glandulosus Sonchus hantonionsis Sonchus hispidus Sonchus repens Sonchoseris arvensis Sonchus arvensis var. shumovichii Sonchus vulgaris subsp. arvensis Sonchus arvensis var. tenggerensis Sonchus arvensis var. arvensis Sonchus vulgaris Sonchus exaltatus Sonchus nitidus Sonchus arvensis var. eglandulosus Sonchus arvensis var. nanus Sonchoseris decora
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024