Brunfelsia
Học thuậtThân thiện
Definition
Noun 1. A genus of tropical American shrubs: "Brunfelsia" is the scientific name for a genus of flowering plants belonging to the nightshade family (Solanaceae). These plants are native to tropical regions of the Americas and are cultivated primarily for their showy, often fragrant flowers, which are followed by fleshy, berry-like fruits.
Usage Notes
- "Brunfelsia" is a taxonomic term used in botany and horticulture. In everyday gardening contexts, plants from this genus are more commonly referred to by their common names.
- It functions as a singular noun when referring to the genus as a whole (e.g., "Brunfelsia is a genus...") and as a countable noun when referring to individual species or plants (e.g., "several brunfelsias").
Examples
- Referring to the genus:
- The genus Brunfelsia contains several species popular in ornamental gardening.
- Botanists study the chemical compounds found in Brunfelsia.
- Referring to specific plants:
- I planted a beautiful brunfelsia near my patio.
- These brunfelsias are known for their color-changing flowers.
Advanced Usage
- In Botanical Classification: The name is always capitalized when used in its formal taxonomic sense (). It is often followed by a species name in italics, e.g., .
- Common Names: Many species within this genus have descriptive common names that refer to the characteristic color change of their flowers over a few days, such as "yesterday-today-and-tomorrow" or "morning-noon-and-night."
Variants and Related Words
- Brunfelsia spp.: The abbreviation "spp." after the genus name indicates multiple, unspecified species within the genus.
- Yesterday-today-and-tomorrow plant: A common name for and similar species, describing how the flowers change color from violet, to lavender, to white over time.
Synonyms
- Genus Brunfelsia: The full, formal taxonomic designation.
- Franciscea: An obsolete synonym sometimes found in older botanical literature.
Important Notes
- Toxicity: Many species of are known to be toxic to humans and animals if ingested, containing alkaloids like scopoletin and manacine. Caution is advised when planting them in gardens accessible to pets or children.
Noun
- genus of tropical American shrubs grown for their flowers followed by fleshy berrylike fruits