tree tobacco
Học thuậtThân thiện
Definition
Noun: * Tree tobacco: An evergreen shrub (Nicotiana glauca) native to South America but naturalized in other regions, including the United States. It is characterized by its shrubby or small tree-like growth, smooth (glaucous) leaves, and tubular yellow flowers. It is notable for being toxic to livestock if ingested.
Usage
- The term "tree tobacco" is used as a common name for the specific plant species . It functions as a compound noun.
- It is primarily used in botanical, agricultural, and ecological contexts to identify the plant and discuss its properties, distribution, or impact.
Examples
- Noun:
- The hillside was covered in tree tobacco, which had spread rapidly after the fire.
- Farmers were warned about tree tobacco invading the pasture, as it can poison cattle.
- Unlike commercial tobacco plants, tree tobacco is often grown as an ornamental shrub in dry climates.
Advanced Usage
- The plant may sometimes be referred to simply as "tobacco tree," though "tree tobacco" is the more standard common name.
- In scientific or precise communication, the binomial nomenclature is preferred to avoid confusion with other plants.
Variants and Related Words
- Nicotiana glauca (n): The scientific (Latin) name for tree tobacco.
- Mustard tree (n): A regional common name sometimes used for this plant, though this can cause confusion with unrelated species.
- Wild tobacco (n): A broader term that can refer to and other uncultivated species.
Synonyms
- Botanical Synonym: .
- Contextual Synonym: Poison tobacco (highlighting its toxic nature).
Notes on Meaning
- The name "tree tobacco" is descriptive, comparing its growth habit to a small tree and noting its relation to the tobacco genus (). It is not the species used for commercial tobacco production ().
- Its primary defining characteristic in agricultural contexts is its toxicity to animals, which is a critical aspect of its meaning.
Noun
- evergreen South American shrub naturalized in United States; occasionally responsible for poisoning livestock