ragwort

英式音标：[ˈrægwɜ:t]播放读音

美式音标：[ˈrægwɜrt]播放读音

词汇分类：Word Menu

概况：

n. 刘寄奴属植物；美狗舌草；千里光草

词义：

n.

刘寄奴属植物；美狗舌草；

英英释义

ragwort[ 'ræɡwə:t ]

n.

widespread European weed having yellow daisylike flowers; sometimes an obnoxious weed and toxic to cattle if consumed in quantity

同义词：tansy ragwortragweedbenweedSenecio jacobaea

American ragwort with yellow flowers

同义词：butterweedSenecio glabellus

用法：

双语例句

用作名词(n.)

Larvae feed on leaves of ragwort.
幼虫吃千里光属植物的叶子。

权威例句

Artificial silver ragwort surface

Successful Biological Control of Ragwort, Senecio Jacobaea, by Introduced Insects in Oregon

Wind dispersal distances in dimorphic achenes of ragwort, Senecio jacobaea.

Compensation and Regrowth in Ragwort (Senecio Jacobaea) Attacked by Cinnabar Moth (Tyria Jacobaeae)

Disturbance, Competition, and Herbivory Effects on Ragwort Senecio Jacobaea Populations

Dormancy and dispersal in dimorphic achenes of tansy ragwort, Senecio jacobaea L. (Compositae)

The establishment of seedlings from primary and regrowth seeds of ragwort (Senecio jacobaea).

Testing a Metapopulation Model of Coexistence in the Insect Community on Ragwort (Senecio jacobaea)

Fabrication of biomimetic superhydrophobic surfaces inspired by lotus leaf and silver ragwort leaf.

THE RELATIVE IMPORTANCE OF HISTORICAL EVENTS AND GENE FLOW ON THE POPULATION STRUCTURE OF A MEDITERRANEAN RAGWORT, SENECIO GALLICUS ...

英语词源：

ragwort (n.)

mid-15c., from ragged, in reference to the appearance of the leaves, + wort.

造句：

1. Ragwort contains a battery of toxic and resilient alkaloids: even honey made from its flowers contains the poison in dilute form.

狗舌草含有大量有毒且适应力强的生物碱：即使是用它的花制成的蜂蜜也含有稀释后的毒素。

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2. Ragwort was accidentally introduced to New Zealand in the late nineteenth century and, like so many invading foreign species, quickly became a pest.

19世纪末，狗舌草被偶然引入新西兰，像许多入侵的外来物种一样，它很快就变成了一种有害生物。

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3. The severity of the impact was increased because cattle, which were displacing sheep, are much more sensitive than sheep to the toxins contained in ragwort.

由于正在取代绵羊的牛对千里光草中含有的毒素比绵羊敏感得多，影响的严重程度有所增加。

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4. There is a suggestion that ragwort honey might not be safe for humans, but there is no indication that this made the timing of the proliferation particularly unfortunate.

有一种说法是，泽菊蜜可能对人体不安全，但目前没有迹象表明，这使得繁殖的时机把握得特别不幸。

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5. American ragwort with yellow flowers.

美洲产的开黄花的千里光。

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6. In 2006, the golden ragwort first bloomed on May 26, Dr. Primack observed; this year it flowered three days earlier.

据普利马克的观察，金色的刘寄奴在2006年开花于五月26日；今年比它早了三天。

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7. In 2006, the golden ragwort first bloomed on May 26, Dr. Primack observed; this year it flowered three days earlier.

据普利马克的观察，金色的刘寄奴在2006年开花于五月26日；今年比它早了三天。

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