Taxon profile
Subordinated taxa
Number of records: 25species Ambrosia acanthicarpa Hook.
- Hooker's Bur-ragweed
species Ambrosia ambrosioides (Cav.) Payne
- Ambrosia Leaf Burr Ragweed
species Ambrosia aptera DC.
species Ambrosia bidentata Michx.
- Lanceleaf Ragweed
species Ambrosia canescens Gray
- Hairy Ragweed
species Ambrosia cheiranthifolia Gray
- Rio Grande Ragweed
species Ambrosia chenopodiifolia (Benth.) Payne
- San Diego Burr Ragweed
species Ambrosia confertiflora DC.
- Weakleaf Burr Ragweed
species Ambrosia cordifolia (Gray) Payne
- Tucson Burr Ragweed
species Ambrosia deltoidea (Torr.) Payne
- Triangle Burr Ragweed
species Ambrosia dumosa (Gray) Payne
- Burrobush
species Ambrosia eriocentra (Gray) Payne
- Woolly Fruit Burr Ragweed
species Ambrosia grayi (A. Nels.) Shinners
- Woollyleaf Burr Ragweed
species Ambrosia hispida Pursh
- Coastal Ragweed
species Ambrosia ilicifolia (Gray) Payne
- Hollyleaf Burr Ragweed
species Ambrosia linearis (Rydb.) Payne
- Streaked Burr Ragweed
species Ambrosia peruviana Willd.
- Peruvian Ragweed
species Ambrosia psilostachya DC.
- Perennial Ragweed
species Ambrosia pumila (Nutt.) Gray
- Dwarf Burr Ragweed
species Ambrosia tenuifolia Spreng.
- Lacy Ambrosia
species Ambrosia tomentosa Nutt.
- Skeletonleaf Burr Ragweed
species Ambrosia trifida L.
- Giant Ragweed
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