Ambrosia

豚草属（学名：Ambrosia）是一种原产于北美洲的杂草，适应力极强而且生长旺盛的植物，属于双子叶植物纲的菊目菊科。大多数的豚草属植物是一年生的，但也有多年生的，例如：A. dumosa。有十个品种在索诺兰沙漠生长。

== 品种 ==
Ambrosia acanthicarpa － Flatspine Burr Ragweed, Annual Bursage
Ambrosia ambrosioides － Ambrosia Burr Ragweed, Canyon Ragweed, chicura
Ambrosia ambrosioides ssp. septentrionale
豚草 Ambrosia artemisiifolia：亦作猪草。
Ambrosia aspera
Ambrosia bidentata － Camphor Weed, Lanceleaf Ragweed
Ambrosia canescens － Hairy Ragweed
Ambrosia carduacea － Baja California Ragweed
Ambrosia chamissonis － Silver Burr Ragweed, Silver Beachweed, Silver Beach Burr
Ambrosia cheirnathifolia － Rio Grande Ragweed
Ambrosia chenopodiifolia － San Diego Burr Ragweed, San Diego Burrsage
Ambrosia confertiflora － Weakleaf Burr Ragweed
Ambrosia cordifolia － Tucson Burr Ragweed
Ambrosia coronopifolia
Ambrosia deltoidea － Triangle Burr Ragweed, Triangleleaf Bursage, Rabbitbush
Ambrosia dumosa － Burrobush, Burroweed, White Bursage
Ambrosia grayi － Woollyleaf Burr Ragweed
Ambrosia helenae
Ambrosia hispida － Coastal Ragweed
Ambrosia ilicfolia － Hollyleaf Burr Ragweed, Hollyleaf Bursage
Ambrosia intergradiens
Ambrosia johnstoniorum
Ambrosia linearis － Streaked Burr Ragweed
Ambrosia maritima 模式种
Ambrosia palustris
Ambrosia…