a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests

an herb with milky juice: lettuce; prickly lettuce

annual or perennial garden plant having succulent leaves used in salads; widely grown

lettuce with long dark-green spoon-shaped leaves

distinguished by leaves arranged in a dense rosette that develop into a compact ball

distinguished by leaves having curled or incised leaves forming a loose rosette that does not develop into a compact head

lettuce valued especially for its edible stems

an herb with milky juice: lettuce; prickly lettuce