awnless
Học thuậtThân thiện
Definition
Adjective: * Lacking awns: Describes a plant, especially a grass or cereal, that does not have awns (the slender, bristle-like appendages found on the spikelets of many grasses). * Having only very short awns: Can also describe a plant whose awns are so short they are essentially absent or not noticeable.
Usage and Examples
The word awnless is a technical botanical term used to classify and describe plant species, particularly within the grass family (Poaceae).
- Botanical Description:
- The farmer preferred the awnless variety of wheat because it was easier to harvest and process.
- A key identifying feature of this grass species is that its florets are completely awnless.
- Compare the awnless barley with the traditional variety, which has long, sharp awns.
Advanced Usage
- In Botanical Keys and Guides: The term is used dichotomously (e.g., "lemmas awned" vs. "lemmas awnless") to help identify plant species.
- In Agronomy and Crop Science: It describes a desirable trait in cultivated cereals, as awnless varieties can reduce irritation during handling and improve fodder quality for animals.
Variants and Related Words
- Awn (noun): The slender, bristle-like appendage itself.
- The long awns of wild barley help the seeds disperse by sticking to animal fur.
- Awned (adjective): The direct opposite, meaning possessing awns.
- The awned species is more common in wild populations.
Synonyms
- Bristleless (in a botanical context)
- Unawned (a less common direct synonym)
Antonyms
- Awned
- Bristled
- Aristate (a more technical term meaning having awns or a bristle-like tip)
Adjective
- lacking or having only very short awns
- awnless bromegrass