Ambrosia
Also known as ragweed, ragweeds
Ragweeds are flowering plants in the genus Ambrosia in the aster family, Asteraceae. They are distributed in the tropical and subtropical regions of the Americas, especially North America, where the origin and center of diversity of the genus are in the southwestern United States and northwestern Mexico. Several species have been introduced to the Old World and some have naturalized and have become invasive species. In Europe, this spread is expected to continue, due to ongoing climate change.
Species
SPECIES
- KingdomPlantae
- PhylumTracheophyta
- ClassMagnoliopsida
- OrderAsterales
- FamilyAsteraceae
Native toAlabama, Alaska, Albania, Alberta, Argentina Northeast, Argentina Northwest, Argentina South, Arizona, Arkansas, Bahamas, Baleares, Belize
Observations recorded597
種 超過40種，詳見內文。 豚草属（學名：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，屬於双子叶植物纲的菊目菊科。大多數的豚草屬植物是一年生的，但也有多年生的，例如：A. dumosa。有十個品種在索諾蘭沙漠生長。 目录 1 品種 2 註腳 3 參考 4 外部連結 品種 Ambrosia acanthicarpa － Flatspine Burr Ragweed, Annual Bursage Ambrosia ambrosioides － Ambrosia Burr Ragweed, Canyon Ragweed, chicura Ambrosia ambrosioides ssp. septentrionale 豚草 Ambrosia artemisiifolia：亦作豬草[1]。 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 Ambro
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Article
6 sectionsContents
- Description and ecology
- Allergy
- Control and eradication
- Species
- References
- External links
Ragweeds are flowering plants in the genus Ambrosia in the aster family, Asteraceae. They are distributed in the tropical and subtropical regions of the Americas, especially North America, where the origin and center of diversity of the genus are in the southwestern United States and northwestern Mexico. Several species have been introduced to the Old World and some have naturalized and have become invasive species. In Europe, this spread is expected to continue, due to ongoing climate change.
The name "ragweed" is derived from "ragged" + "weed," coming from the ragged appearance of the plant's leaves. Other common names include bursages and burrobrushes. The genus name is from the Greek ambrosia, meaning "food or drink of immortality".