ephedra
/e'fi:drə /
Học thuậtThân thiện
Definition
- Noun:
- A jointed and nearly leafless desert shrub: A type of plant, typically found in arid regions, characterized by green, jointed stems, very small scale-like leaves, and producing fleshy, often reddish seeds.
Usage
- The word "ephedra" is used as a singular, countable noun. It refers to the plant itself or to the genus () containing these plants. It is often discussed in botanical, medicinal, or ecological contexts.
- Example:
- Example:
Advanced Usage
- In botanical classification: Used to refer to the genus , the only genus in the family Ephedraceae.
- The genus Ephedra includes approximately 65 species.
- In pharmacology and medicine: Refers to the source of the alkaloid ephedrine.
- The dried stems of certain ephedra species are a natural source of ephedrine.
Variants and Related Words
- Ephedrine (n): A stimulant and decongestant alkaloid compound derived from plants of the genus .
- Ephedrine is used in some medications for asthma and nasal congestion.
Synonyms
- Joint fir: A common name for plants in the genus .
- Mormon tea: A common name for some North American species of , often brewed as a herbal tea.
- Ma huang: The Chinese name for , a species used in traditional Chinese medicine.
Noun
- jointed and nearly leafless desert shrub having reduced scalelike leaves and reddish fleshy seeds