Lactuca serriola

From Bugwoodwiki
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Taxonomy
Kingdom:
Plantae
Phylum:
Magnoliophyta
Class:
Magnoliopsida
Order:
Asterales
Family:
Asteraceae
Genus:
Lactuca
Species:
L. serriola
Scientific Name
Lactuca serriola
L.
Scientific Name Synonyms
Lactuca scariola
L.
Common Names
prickly lettuce, China lettuce, wild lettuce

Overview

Appearance
Lactuca serriola is an annual or biennial that can reach heights of 6 ft. (1.8 m).
Foliage
Cauline leaves (on the stem) are alternate, 2-14 in. (5-36 cm) long and become smaller up the stem. Leaves have a conspicuous, white midvein with the underside of the vein covered with many prickles.
Flowers
In the mid-to-late summer, 0.5 in. (1.3 cm) wide, yellow flowers develop in a branched inflorescence at the apex of the stem.
Fruit
Flowers produce dandelion-like seeds.
Ecological Threat
Lactuca serriola is native to the Mediterranean region and occurs along roadsides, in abandoned fields, and other disturbed areas. It was accidentally introduced into North America in the late 1890s, possibly as a contaminant in seed.

Resources

Images from Bugwood.org


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