豚草或豚草艾（Ambrosia artemisiifolia）开花并释放花粉。夏季和秋季过敏

豚草（Ambrosia artemisiifolia）花粉释放

年轻女子因对豚草过敏而打喷嚏

常见豚草（Ambrosia artemisiifolia）的花朵

豚草（Ambrosia artemisiifolia）生长在田野中

豚草 (Ambrosia artemisifolia)

ANNUAL RAGWEED, AMBROSIA 背景

ommon ragweed ambrosia artemisiifolia growing outdoors in sandy soil common ragweed ambrosia artemisiifolia growing in sandy soil

common ragweed ambrosia artemisiifolia is shown growing in sandy soil the plant features deeply lobed green leaves with a feathery

common ragweed ambrosia artemisiifolia growing outdoors in sandy soil with its finely divided feathery green leaves the plant s

common ragweed ambrosia artemisiifolia with its finely divided green lobed leaves grows in sandy soil outdoors this plant is known

common ragweed ambrosia artemisiifolia growing outdoors in sandy soil is shown the plant features deeply lobed leaves with a

手势停止指向豚草，隔离显示

common ragweed ambrosia artemisiifolia a potent allergen horizontal shot close up common ragweed ambrosia artemisiifolia features

common ragweed ambrosia artemisiifolia in sandy soil displaying its characteristic deeply lobed green leaves this plant is a

common ragweed ambrosia artemisiifolia growing outdoors in sandy soil a potent allergen common ragweed ambrosia artemisiifolia

豚草和药物在浅蓝色背景上，平铺展示

巨型豚草 (Ambrosia trifida)。菊科一年生杂草

巨型豚草 (Ambrosia trifida)。菊科一年生杂草

巨型豚草 (Ambrosia trifida)。菊科一年生杂草

巨型豚草 (Ambrosia trifida)。菊科一年生杂草

巨型豚草 (Ambrosia trifida)。菊科一年生杂草

巨型豚草 (Ambrosia trifida)。菊科一年生杂草

幼年豚草 (Ambrosia artemisiifolia)

豚草 (Ambrosia artemisiifolia)

豚草、口罩和抗过敏药物在灰色大理石背景上，平铺展示

户外盛开的豚草，特写。季节性

常见豚草的花，豚草属植物

E. E 免版税库存照片

豚草枝条和蓝色木桌上的药丸，平铺，留有文字空间。季节性过敏

蓝木桌上的芦苇安溴索、吸入器和药丸，平躺着，有文字空间 季节性过敏

豚草的树枝、吸入器和药丸放在木桌上，平躺着，有文字空间 季节性过敏

豚草豚草

豚草, Ambrosia artemisiifolia

猪毛菜 - 豚草 - Ambrosia artemisiifolia

豚草 - 委陵菜 - Ambrosia artemisiifolia

常见豚草的花，豚草属植物

常见豚草的花，豚草属植物

豚草 (Ambrosia artemisiifolia)

豚草 (Ambrosia artemisiifolia)

开花的豚草，特写。季节性过敏