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Wild Lettuce, Compass Plant - Lactuca serriola
Asteraceae
Lactuca serriola


gardengeek
gardengeek
Type Categories Useful Parts

Shrub

Asteraceae Family

Lactuca Genus

Location

Found in the United States and Canada except southern Florida, northern Maine and Newfoundland.


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Asteraceae
Asterales
Asterales
Star Order (Daisies)
Euasterids II
Euasterids II
Real Stars Group Two
Asteridae
Asteridae
Class of Stars (Daisies)
Core Eudicots
Core Eudicots
Main, Real, Two First-Leaves (Dicots)
Eudicots
Eudicots
Real, Two First-Leaves (Dicots)
Mesangiospermae
Mesangiospermae
Half Capsule Seed Division
Magnoliophyta
Magnoliophyta
Magnolia Division
Spermatophytes
Spermatophytes
Seed Plants
Euphyllophytina
Real Land Plants
Polysporangiates
Multiple Spore Sub-Kingdom
Stomatophytes
Stomatophytes
Air Pores Sub-Kingdom
Embryophytes
Embryophytes
Multicellular Land Plants
Streptobionta
Streptobionta
Multicellular Plants
Plantae
Plantae
Plants
Eukaryota
Eukaryota
Cells with a Nucleus


General Information

Prickly Lettuce, like other Lactucas, bleeds a milky sap when you break it. It is considered a weed in most places.

The leaves alternate up the stem.
The stem is prickly
mature leaves are deeply lobed with pokey prickles along the edges.
The flowers of Prickly Lettuce are yellow in color.
Leaves have a row of spines along the mid-vein of the lower surface.

The plant is edible, although bitter. Use medicinally as a remedy for eye ulcers. It may be used for relaxation, and as a mild opiate.

==============================================
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Tribe: Cichorieae
Genus: Lactuca
Species: L. serriola
This pest causes problems by:

How to get rid of it:
Postemergent herbicide



Wild Lettuce, Compass Plant - Lactuca serriola
Wild Lettuce, Compass Plant - Lactuca serriola - August 09, 2009



Wild Lettuce, Compass Plant - Lactuca serriola
Wild Lettuce, Compass Plant - Lactuca serriola - August 09, 2009



Wild Lettuce, Compass Plant - Lactuca serriola - Pests
Wild Lettuce, Compass Plant - Lactuca serriola - Pests - July 08, 2009



Prickly Lettuce, Wild Lettuce, Compass Plant - Weed - Pests
Prickly Lettuce, Wild Lettuce, Compass Plant - Weed - Pests - May 06, 2009



Prickly Lettuce, Wild Lettuce, Compass Plant - Weed - Pests
Prickly Lettuce, Wild Lettuce, Compass Plant - Weed - Pests - May 06, 2009



Common Weed - Unknown - Pests
Common Weed - Unknown - Pests - gardengeek



Common Weed - Unknown - Pests
Common Weed - Unknown - Pests - gardengeek

Comment: Wild Lettuce, Compass Plant - Lactuca serriola, Lactuca serriola

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