| 释义 |
Definition of hawkweed in English: hawkweednoun ˈhɔːkwiːdˈhôkˌwēd mass nounA widely distributed plant of the daisy family that typically has small yellow flower heads, often growing as a weed. Genus Hieracium, family Compositae Example sentencesExamples - He has been studying hawkweed as a candidate for biocontrol.
- Treatments such as fertilization can increase the competitive ability of more desirable plants, preventing hawkweeds from becoming established.
- Orange hawkweed is the only species with orange flowers and a typically leafless stem.
- Fertilizers and soil fertility management have been used to effectively control hawkweeds in some areas.
- Most hawkweeds have the characteristic orange flower on top of a slender stalk.
- Orange hawkweed is found from western Washington to Wyoming and is known to occur in eastern states.
- The grant will also assist in raising the profile of hawkweeds in the islands and engaging volunteers in hawkweed conservation efforts.
- Several alternative common names for yellow and orange hawkweed contain the word ‘devil’.
- Orange hawkweed has above ground runners, grows to 0.6 metres tall, and contains a milky juice.
- Hawks, whose survival depended on good eyesight, are said to have visited the hawkweeds to drink their juice to strengthen their eyesight.
- The ancient Greeks believed that the sap of hawkweeds was responsible for the keen eyesight of hawks.
- We were not able to find out whether the few-leaved hawkweed was native or European in origin.
- Orange hawkweed is quite widespread in New Zealand and has the potential to become a major problem there.
- In lawns, mowing of hawkweeds is ineffective because the low-lying rosettes are missed by mower blades.
- Orange hawkweed has a shallow root system and underground creeping stems called rhizomes.
Origin Late Old English, rendering Latin hieracium, based on Greek hierax 'hawk': Pliny believed that hawks fed on this plant to strengthen their eyesight. Definition of hawkweed in US English: hawkweednounˈhôkˌwēd A widely distributed plant of the daisy family that typically has small yellow flower heads, often growing as a weed. Genus Hieracium, family Compositae Example sentencesExamples - Orange hawkweed is the only species with orange flowers and a typically leafless stem.
- The grant will also assist in raising the profile of hawkweeds in the islands and engaging volunteers in hawkweed conservation efforts.
- Orange hawkweed has a shallow root system and underground creeping stems called rhizomes.
- Orange hawkweed is found from western Washington to Wyoming and is known to occur in eastern states.
- In lawns, mowing of hawkweeds is ineffective because the low-lying rosettes are missed by mower blades.
- Orange hawkweed has above ground runners, grows to 0.6 metres tall, and contains a milky juice.
- Hawks, whose survival depended on good eyesight, are said to have visited the hawkweeds to drink their juice to strengthen their eyesight.
- We were not able to find out whether the few-leaved hawkweed was native or European in origin.
- Treatments such as fertilization can increase the competitive ability of more desirable plants, preventing hawkweeds from becoming established.
- The ancient Greeks believed that the sap of hawkweeds was responsible for the keen eyesight of hawks.
- He has been studying hawkweed as a candidate for biocontrol.
- Fertilizers and soil fertility management have been used to effectively control hawkweeds in some areas.
- Most hawkweeds have the characteristic orange flower on top of a slender stalk.
- Orange hawkweed is quite widespread in New Zealand and has the potential to become a major problem there.
- Several alternative common names for yellow and orange hawkweed contain the word ‘devil’.
Origin Late Old English, rendering Latin hieracium, based on Greek hierax ‘hawk’: Pliny believed that hawks fed on this plant to strengthen their eyesight. |