Nomenclature: wfo-0000033444
![Conrad Moench (1744-1805) Conrad Moench (1744-1805)](http://commons.wikimedia.org/wiki/Special:FilePath/Conrad%20Moench.jpg)
![Merritt Lyndon Fernald (1873-1950) Merritt Lyndon Fernald (1873-1950)](http://commons.wikimedia.org/wiki/Special:FilePath/Acta%20Horti%20berg.%20-%201905%20-%20tafl.%20148%20-%20Merritt%20Lyndon%20Fernald.png)
Lactuca biennis Rhodora 42: 300 (1940)
Nomenclatural References
- literature : Rhodora 42: 300. 1940 BHL link from IPNI metadata.
- person : Conrad Moench (1744-1805) Based on occurrence of standard abbreviation 'Moench' in the authors string.
- person : Merritt Lyndon Fernald (1873-1950) Based on occurrence of standard abbreviation 'Fernald' in the authors string.
- database : IPNI record: 134512-2
- database : The Plant List v1.1 record gcc-132331
- database : The Plant List version 1.0, record: gcc-132331
Taxonomy: Accepted in 2018-07 classification
Occurs in: 2018-07 : 2019-03 : 2019-05 : 2021-12 : 2022-06 : 2022-12 : 2023-06 : 2023-12 : 2024-06Placement: Asterales > Compositae > Lactuca > Lactuca biennis
Synonyms
- Lactuca terrae-novae
- Agathyrsus floridanus
- Lactuca biennis f. biennis
- Mulgedium leucophaeum
- Sonchus spicatus
- Lactuca leucophaea
- Cicerbita canadensis var. integrifolia
- Galathenium multiflorum
- Lactuca spicata f. spicata
- Cicerbita spicata var. spicata
- Mulgedium leucophaeum var. leucophaeum
- Lactuca spicata var. spicata
- Mulgedium spicatum var. spicatum
- Mulgedium spicatum
- Cicerbita spicata
- Lactuca spicata
- Cicerbita spicata var. integrifolia
- Mulgedium spicatum var. integrifolium
- Lactuca spicata var. integrifolia
- Cicerbita leucophaea
- Sonchus leucophaeus
- Sonchus biennis