Synonyms: Ammoseris patens (heterotypic); Brachyramphus heyneanus (heterotypic); Brachyramphus sinicus; Brachyramphus sonchifolius (heterotypic); Brachyramphus taraxacoides; Brachyrhamphus sinicus (heterotypic); Chondrilla indica; Chondrilla racemosa (homotypic); Chondrilla sonchifolia (heterotypic); Chondrilla squarrosa (heterotypic); Lactuca amurensis (heterotypic); Lactuca bialata (heterotypic); Lactuca brevirostris (heterotypic); Lactuca brevirostris foliis; Lactuca brevirostris var. brevirostris; Lactuca brevirostris var. foliis; Lactuca brevirostris var. foliisindivisis (heterotypic); Lactuca brevirostris var. foliislaciniatis (heterotypic); Lactuca cavaleriei (heterotypic); Lactuca dracoglossa (heterotypic); Lactuca hoatiensis (heterotypic); Lactuca indica f. indica; Lactuca indica f. indivisa; Lactuca indica f. runcinata; Lactuca indica runcinata; Lactuca indica var. dentata; Lactuca indica var. dracoglossa (heterotypic); Lactuca indica var. foliis; Lactuca indica var. foliisindivisis (heterotypic); Lactuca indica var. foliislaciniatis (heterotypic); Lactuca indica var. indica; Lactuca indica var. indivisa; Lactuca indica var. laciniata (homotypic); Lactuca indica var. ldracoglossa; Lactuca indica var. macrothyrsa; Lactuca indica var. subintegerrima; Lactuca kouyangensis (heterotypic); Lactuca laciniata (heterotypic); Lactuca laciniata f. indivisa (heterotypic); Lactuca mauritiana; Lactuca squarrosa (heterotypic); Lactuca squarrosa dentata; Lactuca squarrosa f. indivisa; Lactuca squarrosa f. runcinata; Lactuca squarrosa f. squarrosa; Lactuca squarrosa integrifolia; Lactuca squarrosa laciniata; Lactuca squarrosa runcinata; Lactuca squarrosa runcinatopinnatifida; Lactuca squarrosa var. dentata; Lactuca squarrosa var. integrifolia; Lactuca squarrosa var. laciniata (heterotypic); Lactuca squarrosa var. runcinato-pinnatifida; Lactuca squarrosa var. squarrosa; Leontodon acutissimus (heterotypic); Microrhynchus patens (heterotypic); Prenanthes indica (homotypic); Prenanthes laciniata (heterotypic); Prenanthes patens; Prenanthes racemosa (heterotypic); Prenanthes squarrosa (heterotypic); Prenanthes taraxacoides; Pterocypsela indica (homotypic); Pterocypsela indica indivisa; Pterocypsela indica runcinata; Pterocypsela indica var. dracoglossa; Pterocypsela indica var. indica; Pterocypsela indica var. indivisa; Pterocypsela indica var. laciniata; Pterocypsela indivisa (heterotypic); Pterocypsela laciniata (homotypic); Scariola brevirostris (homotypic); Sonchus calyculatus (homotypic)