Map Color Key:
|STATE COLOR KEY||COUNTY COLOR KEY|
Species present in state and native
|Species present and not rare||Species extinct||Species native, but adventive in state||Species waif|
Species present in state and exotic
Species present and rare
| Species noxious (includes noxious-weed seeds)||Species eradicated|
|Species not present in state||Species extirpated (historic)||Species exotic and present||Questionable Presence (cross-hatched)|
In some cases, individual species maps will have multiple colors regarding nativity [e.g., Chenopodium album, dark olive green (native), orange (native historic), teal (adventive), and also dark navy blue (exotic)]. This map suggests that in various U.S. states, at least one infraspecific taxon of the species complex is native, another is exotic, a third is adventive and the fourth rare. Once published, the Floristic Synthesis will show state-level nativity and rarity for each infraspecific taxon, however, for this website, we have provided only full species-level maps.
Last updated February 18, 2011.