Asteraceae FAMILY

Lactuca canadensis

Edibility

2/5

Medicinal

3/5

Safety & Hazards

Although no specific mention of toxicity has been seen for this species, many plants in this genus contain a narcotic principle, this is at its most concentrated when the plant begins to flower. This principle has been almost bred out of the cultivated forms of lettuce but is produced when the plant starts to go to seed[ 13 Title Hamlyn Encyclopaedia of Plants. Publication Author Triska. Dr. Publisher Hamlyn Year 1975 ISBN 0-600-33545-3 Description Very interesting reading, giving some details of plant uses and quite a lot of folk-lore. ].

Botanical Description

Lactuca canadensis is a biennial plant growing from a taproot. It produces a basal rosette of leaves and a single, branched flowering stem that grows from 15 - 450cm or more tall but is usually between 40 - 200cm[ 270 Title Flora of N. America Publication Author Website http://flora.huh.harvard.edu/fna/ Publisher Year 0 ISBN Description An on-line version of the flora with an excellent description of the plant including a brief mention of plant uses. ].

Habitat & Origin

Origintemperate

Native RangeN. America - Yukon, British Columbia to Quebec, south to California, Texas and Florida; Caribbean - Hispaniola

HabitatThickets, woodland borders and clearings[ 43 Title Gray's Manual of Botany.Eighth Edition Publication Author Fernald. M. L. Publisher American Book Co.; New York Year 1950 ISBN 0442222505 Description A bit dated but a good and concise flora of the eastern part of N. America. ]. Moist open places[ 235 Title An Illustrated Flora of the Northern United States and Canada Publication Author Britton. N. L. Brown. A. Publisher Dover Publications. New York. Year 1970 ISBN 0-486-22642-5 Description Reprint of a 1913 Flora, but still a very useful book. ]. Usually found in sandy soils[ 274 Title Illustrated Flora of North Central Texas Publication Author Diggs, Jnr. G.M.; Lipscomb. B. L. & O'Kennon. R. J Website http://artemis.austincollege.edu/acad/bio/gdiggs/NCTXpdf.htm Publisher Botanical Research Institute, Texas. Year 1999 ISBN 1-889878-01-4 Description An excellent flora, which is also available on-line. ]. Roadsides, swamps, salt marshes, thickets; at from sea level to 2200 metres[ 270 Title Flora of N. America Publication Author Website http://flora.huh.harvard.edu/fna/ Publisher Year 0 ISBN Description An on-line version of the flora with an excellent description of the plant including a brief mention of plant uses. ].