Hieracium asperum
| Hieracium asperum (Linnaeus) Bernhardi, Syst. Verz. 136. 1800. | BASIONYM: Sonchus oleraceus Linnaeus, var. asper Linnaeus 1753. | |
Hieracium sonchus
| Hieracium sonchus E. H. L. Krause, in Sturm, Deutschl. Fl., ed. 2. 14: 113. 1906, nom. illegit. | BASIONYM: Sonchus asper (Linnaeus) Hill 1769; Sonchus oleraceus Linnaeus, var. asper Linnaeus 1753. | |
Sonchus asper var. pungens
| Sonchus asper (Linnaeus) Hill, var. pungens Bischoff, Beitr. Fl. Deutschl. 222. 1851, nom. inadmiss. | BASIONYM: Sonchus asper (Linnaeus) Hill 1769; Sonchus oleraceus Linnaeus, var. asper Linnaeus 1753. | |
Sonchus asper var. typicus
| Sonchus asper (Linnaeus) Hill, forma typicus Beck, Fl. Nieder-Oesterreich 1322. 1893, nom. inadmiss. | BASIONYM: Sonchus asper (Linnaeus) Hill 1769; Sonchus oleraceus Linnaeus, var. asper Linnaeus 1753. | |
Sonchus fallax var. asper
| Sonchus fallax Wallroth, var. asper (Linnaeus) Wallroth, Sched. Crit. 432. 1822. | BASIONYM: Sonchus oleraceus Linnaeus, var. asper Linnaeus 1753. | |
Sonchus oleraceus var. asper
| Sonchus oleraceus Linnaeus, var. asper Linnaeus, Sp. Pl. 794. 1753. | | TYPE: Without data, Herb. Burser VI: 14 (lectotype: UPS). Lectotypified by Boulos, in C. E. Jarvis & Turland, Taxon 47: 368. 1998. |
Sonchus asper forma glandulosus
| Sonchus asper (Linnaeus) Hill, forma glandulosus Hauman, Anales Soc. Ci. Argent. 86: 336. 1918. | | TYPE: ARGENTINA: |
Sonchus asper forma inermis
| Sonchus asper (Linnaeus) Hill, forma inermis Beck, Fl. Nieder-Oesterreich 1322. 1893. | BASIONYM: Sonchus asper (Linnaeus) Hill, var. inermis Bischoff 1851, nom. illegit.; Sonchus fallax Wallroth, var. laevis Wallroth 1822. | |
Sonchus asper var. glandulifer
| Sonchus asper (Linnaeus) Hill, var. glandulifer Garrett, Spring Fl. Wasatch, ed. 3. 119. 1917. | | TYPE: UTAH: |
Sonchus asper var. inermis
| Sonchus asper (Linnaeus) Hill, var. inermis Bischoff, Beitr. Fl. Deutschl. 222. 1851, nom. illegit. | BASIONYM: Sonchus fallax Wallroth, var. laevis Wallroth 1822. | |
Sonchus asper var. sulphureus
| Sonchus asper (Linnaeus) Hill, var. sulphureus Boissier, Fl. Orient. 3: 796. 1875. | | |
Sonchus carolinianus
| Sonchus carolinianus Walter, Fl. Carol. 192. 1788. | | TYPE: SOUTH CAROLINA: |
Sonchus eryngioides
| Sonchus eryngioides de Candolle, Prodr. 7: 185. 1838. | | |
Sonchus fallax
| Sonchus fallax Wallroth, Annus Bot. 98. 1815. | | |
Sonchus fallax var. laevis
| Sonchus fallax Wallroth, var. laevis Wallroth, Sched. Crit. 432. 1822. | | TYPE: GERMANY: |
Sonchus glaber
| Sonchus glaber Thunberg, Prodr. Pl. Cap. 139. 1800. | | TYPE: SOUTH AFRICA: |
Sonchus spinosus
| Sonchus spinosus Lamarck, Fl. France 2: 86. 1779 ("1778"). | | TYPE: FRANCE: |
Sonchus spinulosus
| Sonchus spinulosus Bigelow, Fl. Boston., ed. 2. 292. 1824. | | TYPE: MASSACHUSETTS: |