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| Acanthaceae |
Aphelandra, Dicliptera, Justicia |
| Aizoaceae |
Trianthema |
| Alliaceae |
Ipheion, Nothoscordum, Tristagma |
| Alstroemeriaceae |
Alstroemeria |
| Amaranthaceae |
Alternanthera, Amaranthus, Gomphrena |
| Amaryllidaceae |
Chlidanthus, Habranthus, Haylockia, Hieronymiella, Hippeastrum, Rhodophiala, Zephyranthes |
| Anacardiaceae |
Schinus |
| Anthericaceae |
Anthericum |
| Apiaceae |
Ammoselinum , Apium, Asteriscium, Austropeucedanum, Azorella, Bolax, Bowlesia, Diposis, Eryngium, Gymnophyton, Hydrocotyle, Mulinum, Notiosciadium, Oligocladus, Oreomyrrhis, Spermolepis |
| Apocynaceae |
Amblystigma, Aphanostelma, Cynanchum, Diplolepis, Forsteronia, Gonolobus, Grisebachiella, Hickenia, Ibatia, Jobinia, Macropharynx, Mandevilla, Marsdenia, Matelea , Melinia, Metastelma, Mitostigma, Morrenia, Oxypetalum, Petalostelma , Philibertia, Schistogyne, Tweedia |
| Arecaceae |
Butia |
| Aristolochiaceae |
Aristolochia |
| Aspleniaceae |
Asplenium |
| Asteraceae |
Abrotanella, Achyrocline, Ameghinoa, Angelphytum, Antennaria, Aphyllocladus, Artemisia, Aster, Ayapanopsis, Aylacophora , Baccharis, Belloa , Brachyclados, Burkartia, Chaetanthera, Chaptalia, Chersodoma, Chiliophyllum, Chiliotrichiopsis, Chrysolaena, Chuquiraga, Conyza, Dolichlasium, Doniophyton, Duseniella, Eriachaenium, Erigeron, Eupatorium, Flourensia, Gaillardia, Galinsoga, Gamochaeta, Gnaphalium , Gochnatia, Grindelia , Gutierrezia, Haplopappus, Helenium, Hieracium , Holocheilus, Huarpea, Hyalis, Hyaloseris, Hymenoxys, Hypochaeris, Hysterionica, Isostigma, Katinasia, Laennecia, Lepidophyllum, Leptostelma, Leucheria, Liabum, Luciliocline, Macrachaenium , Microgyne, Microgynella, Microliabum , Micropsis, Mikania, Mutisia, Nardophyllum, Nassauvia, Noticastrum, Ophryosporus, Paleaepappus , Perezia , Porophyllum, Psila, Senecio, Solidago, Soliva, Stevia, Stuckertiella, Symphyotrichum , Tagetes, Trichocline, Verbesina, Vernonia, Viguiera, Vittadinia, Werneria, Zexmenia |