Asteraceae | ! | Sonchus asper | (L.) Hill | Herb. Brit. 1: 47 | 1769 |
Asteraceae | * | Sonchus asper | (L.) Vill. | Fl. Delph. 3: 158 | 1789 |
Asteraceae | | Sonchus asper fo. asper | | | |
Asteraceae | | Sonchus asper subsp. asper | | | |
Asteraceae | | Sonchus asper fo. glandulosa | Hauman | Anales Soc. Ci. Argent. 86: 336 | 1918 |
Asteraceae | | Sonchus asper subsp. glaucescens | (Jord.) Ball | J. Linn. Soc., Bot. 16(95): 548 | 1878 |
Asteraceae | | Sonchus asper fo. inermis | Beck | | ** |
Asteraceae | | Sonchus asper var. megalocarpa | Hook. f. | Fl. Tasman. 1: 227 | 1856 |
Asteraceae | | Sonchus asper var. megalocarpus | Hook. f. | Bot. Antarctic Voy. 1(3): 227 | 1856 |