As classified in WFO snapshot
December 2023
latest classification for this taxon
species
Lactuca biennis
This species name was first published in Rhodora 42: 300 (1940)
At the time of this classification snapshot, this species name was accepted by WFO (placed as the accepted name of a taxon). Its description and other taxonomic data can be found on World Flora Online, id: wfo-0000033444.
Synonyms of Lactuca biennis
| Name | Author | Protologue | Nomenclator | WFO link |
|---|---|---|---|---|
| Lactuca terrae-novae | Rhodora 28: 240 (1927) | wfo-0000002359 | ||
| Agathyrsus floridanus | Edinburgh New Philos. J. (1828-29) 310 | wfo-0000006651 | ||
| Lactuca biennis f. biennis | – | – | — | wfo-0000007775 |
| Mulgedium leucophaeum | Prodr. 7(1): 250 (1838) | wfo-0000008135 | ||
| Sonchus spicatus | Encycl. 3: 401 (1792) | wfo-0000009983 | ||
| Lactuca leucophaea | Proc. Amer. Acad. Arts 19: 73. 1883 | wfo-0000010568 | ||
| Lactuca spicata f. spicata | – | – | — | wfo-0000049305 |
| Cicerbita spicata var. spicata | – | – | — | wfo-0000050805 |
| Mulgedium leucophaeum var. leucophaeum | – | – | — | wfo-0000051890 |
| Lactuca spicata var. spicata | – | – | — | wfo-0000055683 |
| Mulgedium spicatum var. spicatum | – | – | — | wfo-0000057517 |
| Mulgedium spicatum | Fl. Lancaster Co. : 316 (1913) | wfo-0000078069 | ||
| Cicerbita spicata | Bull. Soc. Bot. Genève , ser. 2, 2: 124 (1910) | wfo-0000083394 | ||
| Mulgedium spicatum var. integrifolium | – | — | wfo-0000100317 | |
| Lactuca spicata var. integrifolia | Mem. Torrey Bot. Club 5: 350 (1894) | wfo-0000106916 | ||
| Cicerbita leucophaea | Sched. Crit. 434 (1822) (1822) | wfo-0000125701 | ||
| Sonchus leucophaeus | Sp. Pl., ed. 4 , 3: 1520 (1803) | wfo-0000130923 | ||
| Agathyrsus leucophaeus | Bot. 170. | wfo-0000134399 | ||
| Sonchus biennis | Methodus : 545 (1794) | wfo-0000137686 | ||
| Lactuca biennis f. integrifolia | Rhodora 42: 302. 1940 | wfo-0001403044 | ||
| Lactuca spicata f. integrifolia | Ann. Carnegie Mus. 13: 443. 1922 | wfo-0001403048 |