| 词汇 | ragweed |
| 释义 | ragweed noun[ C or U ] uk /ˈræɡ.wiːd/ us /ˈræɡ.wiːd/pluralragweed or ragweeds a plant that has narrow stems with groups of yellow flowers, known as an allergen(= a substance that can cause people to have a bad physical reaction): Ragweed is a common cause of hay fever. He's allergic to ragweed pollen. Chamomile is part of the family that includes ragweed and chrysanthemum. He advised people to avoid echinacea if they have allergies to ragweed, daisy, or sunflower. Researchers found that ragweed was a commonly cited source of seasonal allergies. A single ragweed plant can release one million pollen grains in a day. Flowers & flowering plants aconite adam-and-eve aeonium African daisy agapanthus edelweiss eglantine elderflower elephant ear erythronium locoweed loosestrife lords-and-ladies lotus love-in-a-mist sedum sego lily self-heal senecio sensitive plant You can also find related words, phrases, and synonyms in the topics: Common plants |
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