tropical soda apple

Solanales > Solanaceae > Solanum viarum Dunal
Tropical soda apple is a perennial, shrubby forb that is on the Federal Noxious Weed list. Plants grow to 6 ft. (1.8 m) in height and width. Leaves are broad, 6-8 in. (15-20 cm) long, 2-6 in. (5.1-15.2 cm) wide, hairy and resemble fig or oak leaves. The entire plant is armed with ¾ in. (1.9 cm) long, straight prickles. Flowering occurs year-round, with most reproduction occurring from September to May. White, 5-petaled flowers develop, in clusters, below the leaves. Fruit are 1 in. (2.5 cm) in diameter and resemble a watermelon (a mottled mix of whitish and dark greens). Tropical soda apple primarily invades pastures, fields, and parks, but also has the potential to invade open forest and other natural areas. Tropical soda apple forms thick stands that can be impenetrable to livestock, large wildlife, and humans. Tropical soda apple is native to South America and was introduced accidentally into Florida in the 1980s.

Identification, Biology, Control and Management Resources

  • Poster - Georgia Cooperative Agricultural Pest Survey
    http://www.invasive.org/publications/tsa.pdf - Oct 21, 2004
  • Weed of the Week - USDA Forest Service
    http://www.na.fs.fed.us/fhp/invasive_plants/weeds/tropical-soda-apple.pdf - Nov 7, 2006

Selected Images

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Number:1115029
Description: Seedling(s);
Photographer:Charles T. Bryson, USDA Agricultural Research Service
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Number:1391157
Description: Seedling(s);
Photographer:John D. Byrd, Mississippi State University
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Number:4054012
Description: Plant(s);
Photographer:J. Jeffrey Mullahey, University of Florida
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Number:1115034
Description: Foliage;
Photographer:Charles T. Bryson, USDA Agricultural Research Service
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Number:1115037
Description: Foliage;
Photographer:Charles T. Bryson, USDA Agricultural Research Service
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Number:2308095
Description: Foliage;
Photographer:James Rollins,
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Number:2254059
Description: Flower(s); flowers
Photographer:Charles T. Bryson, USDA Agricultural Research Service
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Number:1624037
Description: Fruit(s); Thorny nightshade from Argentina, first appeared in the United States in pastures and rangelands in Glades County, Florida, in 1988. Mottled green fruits that look like small watermelons are a distinguising feature of the plant.
Photographer:J. Jeffrey Mullahey, University of Florida
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Number:1115020
Description: Feature(s); Flower, Fruit, Stem, and Foliage
Photographer:Charles T. Bryson, USDA Agricultural Research Service
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Number:1115026
Description: Fruit(s); Mature fruit
Photographer:Charles T. Bryson, USDA Agricultural Research Service
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Number:0016193
Description: Feature(s); fruit in November
Photographer:John W. Everest, Auburn University
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Number:1149071
Description: Fruit(s);
Photographer:USDA APHIS PPQ Archive, USDA APHIS PPQ
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Number:1391387
Description: Plant(s);
Photographer:J. Jeffrey Mullahey, University of Florida
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Number:1115023
Description: Infestation; In a field along with cattle
Photographer:Charles T. Bryson, USDA Agricultural Research Service
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Number:1115031
Description: Plant(s); In a pasture with cattle
Photographer:Charles T. Bryson, USDA Agricultural Research Service
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Number:1115036
Description: Infestation;
Photographer:Charles T. Bryson, USDA Agricultural Research Service
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Number:1624038
Description: Infestation; Grows well in sun and shade and is invading tree hammocks where it prevents cattle from seeking refuge from the sun in southern pastures.
Photographer:J. Jeffrey Mullahey, University of Florida
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Number:1299167
Description: Plant(s); growing out of a bag of manure
Photographer:Randy Westbrooks, U.S. Geological Survey
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External Links

Invasive Reference(s)

Subject Reference(s)

  • USDA, NRCS. 2001. The PLANTS Database, Version 3.1, National Plant Data Center, Baton Rouge, LA 70874-4490 USA. - http://plants.usda.gov/