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词汇 hawkweed
释义

Definition of hawkweed in English:

hawkweed

noun ˈhɔːkwiːdˈhôkˌwēd
mass noun
  • A widely distributed plant of the daisy family that typically has small yellow flower heads, often growing as a weed.

    山柳菊

    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:

hawkweed

nounˈhôkˌwēd
  • A widely distributed plant of the daisy family that typically has small yellow flower heads, often growing as a weed.

    山柳菊

    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.

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