Tall blue lettuce

Common names

Synonyms

• Agathyrsus leucophaeus (Willd.) L.C.Beck
• Agathyrsus spicatus (Lam.) D.Don
• Agathyrsus spicatus (Lam.) Sweet
• Cicerbita leucophaea Wallr.
• Cicerbita spicata (Lam.) Beauverd
• Cicerbita spicata var. spicata
• Galathenium multiflorum Nutt.
• Lactuca biennis f. biennis
• Lactuca biennis f. integrifolia (Torr. & A.Gray) Fernald
• Lactuca leucophaea A.Gray
• Lactuca multifida Rydb.
• Lactuca spicata (Lam.) Hitchc.
• Lactuca spicata f. integrifolia (Torr. & A.Gray) Jenn.
• Lactuca spicata f. spicata
• Lactuca spicata var. integrifolia (Torr. & A.Gray) Britton
• Lactuca spicata var. multifida A.Nelson & J.F.Macbr.
• Lactuca spicata var. spicata
• Lactuca terrae-novae Fernald
• Mulgedium leucophaeum DC.
• Mulgedium leucophaeum var. leucophaeum
• Mulgedium spicatum (Lam.) Small
• Mulgedium spicatum var. integrifolium (Torr. & A.Gray) Small
• Mulgedium spicatum var. spicatum
• Sonchus biennis Moench
• Sonchus leucophaeus Willd.
• Sonchus spicatus Lam.

Characteristics

Growth habit

Forb/herb

Lifespan

Annual, Biennial

In the US and Canada

Alaska: native, Canada: native, Lower 48 states: native, St. Pierre and Miquelon: native

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• Indian lettuceLactuca indicaAsteraceae
• Lactuca sibiricaAsteraceae
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• Lactuca orientalisAsteraceae
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