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Nicotiana glauca Graham  
Family: Solanaceae
Tree Tobacco, more... (es: juanloco, palo loco, cornetón, buena moza, juan loco, álamo loco, tabaco cimarrón, maraguana, maraquiana)
[Siphaulax glabra]
Nicotiana glauca image
Max Licher
  • SW Field Guide
  • Resources
Martin and Hutchins 1980, Wiggins 1964
Common Name: tree tobacco Duration: Perennial Nativity: Non-Native Lifeform: Tree Wetland Status: FAC General: Common weed, originally from Bolivia and Argentina, naturalized, much branched shrub to small tree growing to 8 m tall. Leaves: Thick and rubbery to 20 cm long, lance-shaped, smooth on short stalks, opposite on lower branches. Upper leaves lack stalks and lie on upward angle against branch. Flowers: Small, tubular, cream-colored, greenish white flowers form at branch ends, corolla flares at apex, 5-cleft, unequally toothed calyx. Fruits: Capsules contain many small brown seeds, sticky. Ecology: Found on disturbed soils, vacant lots, roadsides, along stream banks, washes and drainages below 4,500 ft (1372 m); flowers March-November. Notes: Found through the range, escaped cultivar in many cases, spreads by prolific seeds. Ethnobotany: Plant is toxic. Contains anabasine, an alkaloid similar to nicotine which can be extracted to be used as an insecticide. Etymology: Nicotiana is named for Jean Nicot (1530-1600), the French ambassador to Portugal responsible for introducing tobacco to France in 1560, glauca comes form Greek meaning bluish-gray, referring to leaves. Synonyms: None Editor: SBuckley, 2010
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Open Interactive Map
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Max Licher
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Sue Carnahan
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Leslie Landrum
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Liz Makings
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Leslie Landrum
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Sue Carnahan
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Sue Carnahan
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Anthony Mendoza
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Anthony Mendoza
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Anthony Mendoza
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Anthony Mendoza
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Anthony Mendoza
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Anthony Mendoza
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Anthony Mendoza
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University of Florida Herbarium
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The National Science Foundation
Development supported by National Science Foundation Grants (DBI 9983132, BRC 0237418, DBI 0743827, DBI 0847966)
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