Botanical identity
This taxon is documented in the World Checklist of Useful Plant Species with a reported medicinal use. The record establishes a use report and botanical index entry, not clinical effectiveness or individual safety.
KingdomPlantae
Phylum / divisionTracheophyta
ClassMagnoliopsida
OrderAsterales
FamilyAsteraceae
GenusLactuca
Scientific name with authorshipLactuca biennis (Moench) Fernald
Indexed scientific synonyms
Agathyrsus floridanus D.DonCicerbita canadensis var. integrifolia Farw.Cicerbita spicata (Lam.) BeauverdCicerbita spicata var. integrifolia (Torr. & A.Gray) BeauverdCicerbita spicata var. spicataEunoxis amabilis Raf.Lactuca biennis f. aurea (Jenn.) FernaldLactuca biennis f. biennisLactuca biennis f. integrifolia (Torr. & A.Gray) FernaldLactuca biennis subsp. integrifolia (A.Gray) BrittonLactuca leucophaea var. integrifolia (Torr. & A.Gray) A.GrayLactuca multifida Rydb.Lactuca spicata Hitchc.Lactuca spicata f. integrifolia (Torr. & A.Gray) Jenn.Lactuca spicata f. spicataLactuca spicata var. aurea Jenn.Lactuca spicata var. integrifolia (Torr. & A.Gray) BrittonLactuca spicata var. multifida A.Nelson & J.F.Macbr.Lactuca terrae-novae FernaldMulgedium leucophaeum var. integrifolium Torr. & A.GrayMulgedium leucophaeum var. leucophaeumMulgedium spicatum (Lam.) SmallMulgedium spicatum var. integrifolium (Torr. & A.Gray) SmallMulgedium spicatum var. spicatumSonchus biennis MoenchSonchus spicatus Lam.
Documented use categories
These categories describe the kinds of human-use reports attached to the taxon in the source checklist. Multiple categories can coexist; a plant may be recorded as both food and poison, depending on part, preparation and context.
How to interpret this record
Evidence boundary
A taxonomic use record is a discovery and indexing signal. Clinical evidence must be assessed separately for the exact species, plant part, preparation, route, dose and health question.
Safety boundary
Correct identification is essential. Toxicity, contraindications, interactions and safe preparation cannot be inferred from a documented-use record.
Dataset record and provenance
DatasetWCUPS 2020
LicenceCC BY 4.0
Name sourceIPNI
IPNI / external identifier134512-2
Use codesME
Crop wild relativeNo
Contributing checklist sources
Medicinal Plant Names Services v8.2
Read the full dataset citation, licence and import methodology →
!Educational index, not a treatment recommendation
The presence of a taxon in this database does not provide a diagnosis, dose, formulation or assurance of safety. Some indexed plants are toxic, regulated, endangered or unsafe in specific life stages.