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Sonchus oleraceus L.
Common sowthistle

Sonchus oleraceus
Copyright by: Roger L. Hammer

Family: Asteraceae

Group: Dicot

Substrate: Terrestrial

Habit: Herb

Perennation: Annual

Native Range: Europe; now a widespread weed.

Map of select IRC data for peninsular Florida

SOUTH FLORIDA Occurrence: Present

SOUTH FLORIDA Native Status: Not Native, Naturalized

SOUTH FLORIDA Cultivated Status: Not Cultivated

Comments: For more images, click on the Atlas of Vascular Plants link below.

Other data on Sonchus oleraceus available from :

Atlas of Florida Vascular Plants
Sonchus oleraceus has been found in the following 66 conservation areas :
Occurrence Native Status
Alice C. Wainwright Park Possibly Extirpated Not Native, Naturalized
Arthur R. Marshall Loxahatchee National Wildlife Refuge Present Not Native, Naturalized
Bill Baggs Cape Florida State Park Present Not Native, Naturalized
Bill Sadowski Park Present Not Native, Naturalized
Biscayne National Park Present Not Native, Naturalized
Biscayne National Park, Florida Keys Section Possibly Extirpated Not Native, Naturalized
Black Point Park and Marina Present Not Native, Naturalized
Blowing Rocks Preserve Present Not Native, Naturalized
Bonair Beach Parcel, Martin County Present Not Native, Naturalized
Camp Owaissa Bauer Present Not Native, Naturalized
Camp Owaissa Bauer Addition Present Not Native, Naturalized
Cape Romano - Ten Thousand Islands Aquatic Preserve Present Not Native, Naturalized
Castellow Hammock Park Present Not Native, Naturalized
Cayo Costa State Park Present Not Native, Naturalized
Cedar Point Environmental Park Present Not Native, Naturalized
Coconut Creek Maple Swamp Natural Area Present Not Native, Naturalized
Collier-Seminole State Park Present Not Native, Naturalized
Corkscrew Regional Ecosystem Watershed (CREW) Present Not Native, Naturalized
Crandon Park Present Not Native, Naturalized
Crocodile Lake National Wildlife Refuge Present Not Native, Naturalized
Dagny Johnson Key Largo Hammocks Botanical State Park Present Not Native, Naturalized
Deering Estate at Cutler Present Not Native, Naturalized
Don Pedro Island State Park Present Not Native, Naturalized
Doris Davis Forman Wilderness Preserve Natural Area Present Not Native, Naturalized
Dr. Von D. Mizell-Eula Johnson State Park Present Not Native, Naturalized
Dry Tortugas National Park Present Not Native, Naturalized
Dupuis Reserve Present Not Native, Naturalized
Eachus Pineland Present Not Native, Naturalized
Everglades National Park Present Not Native, Naturalized
Frog Pond/L-31 N Transition Lands Present Not Native, Naturalized
Fuchs Hammock Preserve Present Not Native, Naturalized
Gomez Present Not Native, Naturalized
Harden Hammock Present Not Native, Naturalized
Hillsboro Pineland Natural Area Present Not Native, Naturalized
Hugh Taylor Birch State Park Present Not Native, Naturalized
J.N. Ding Darling National Wildlife Refuge Present Not Native, Naturalized
John Pennekamp Coral Reef State Park Present Not Native, Naturalized
Jonathan Dickinson State Park Present Not Native, Naturalized
Juno Dunes Natural Area Present Not Native, Naturalized
Jupiter Inlet Lighthouse Outstanding Natural Area Not Native, Naturalized
Lake Okeechobee Marshes Present Not Native, Naturalized
Lake Okeechobee Ridge Present Not Native, Naturalized
Larry and Penny Thompson Park Present Not Native, Naturalized
Long Key State Park Present Not Native, Naturalized
Loxahatchee River Natural Area Present Not Native, Naturalized
Matheson Hammock Park Present Not Native, Naturalized
Meissner Hammock Present Not Native, Naturalized
Military Trail Natural Area Present Not Native, Naturalized
Muscara Present Not Native, Naturalized
National Key Deer Refuge Possibly Extirpated Not Native, Naturalized
Nixon Smiley Pineland Addition Present Not Native, Naturalized
Pond Apple Slough Natural Area Present Not Native, Naturalized
Porter-Russell Pineland Present Not Native, Naturalized
Quail Roost Pineland Present Not Native, Naturalized
Red Reef Park, including Gumbo Limbo Nature Center Present Not Native, Naturalized
Rockdale Pineland Present Not Native, Naturalized
Rookery Bay National Estuarine Research Reserve Present Not Native, Naturalized
Silver Palm Groves Present Not Native, Naturalized
Sunny Palms Pineland Present Not Native, Naturalized
Tamiami Pineland Complex Addition Present Not Native, Naturalized
Ten Thousand Islands National Wildlife Refuge Present Not Native, Naturalized
Warbler Wetland Natural Area Present Not Native, Naturalized
West Lake Park/Anne Kolb Nature Center Present Not Native, Naturalized
Whispering Pines Hammock Preserve Present Not Native, Naturalized
Yamato Scrub Natural Area Present Not Native, Naturalized
Zoo Miami Possibly Extirpated Not Native, Naturalized

Sonchus oleraceus has been found in the following 9 counties :
Occurrence Native Status
Broward County Not Native, Naturalized
Charlotte County Not Native, Naturalized
Collier County Not Native, Naturalized
Lee County Not Native, Naturalized
Martin County Not Native, Naturalized
Miami-Dade County Not Native, Naturalized
Monroe County (Keys) Not Native, Naturalized
Monroe County (Mainland) Not Native, Naturalized
Palm Beach County Not Native, Naturalized

Sonchus oleraceus has been found in the following 2 habitats :
Disturbed Upland
Shell Mound

All Images:

Sonchus oleraceus
Copyright by: Roger L. Hammer