Least Tarweed, Miniature Tarweed, Opposite-leaved Tarweed, Smallhead Tarweed, Small-head Tarweed, Small-headed Tarweed: Hemizonella minima (Synonyms: Hemizonia minima, Madia minima) -
Lemon-scented Tarweed, Lemon-scented Tarplant, Lemon Tarweed: Madia citriodora -
Autumn Showy Tarweed, Common Madia, Showy Tarweed: Madia elegans (Synonyms: Madia elegans ssp. densiflora, Madia elegans ssp. elegans, Madia elegans ssp. vernalis, Madia elegans var. densifolia, Madia elegans var. elegans) -
Little Tarplant, Little Tarweed, Small Tarweed, Threadstem Madia: Madia exigua -
Cluster Tarweed, Mountain Tarplant, Mountain Tarweed, Stinking Tarweed: Madia glomerata -
Common Tarweed, Grassy Tarplant, Grassy Tarweed, Gumweed, Slender Tarweed: Madia gracilis (Synonym: Madia gracilis ssp. gracilis) -
Coast Tarweed, Chilean Tarplant: Madia sativa (Synonyms: Madia capitata, Madia sativa ssp. capitata, Madia sativa ssp. sativa, Madia sativa var. congesta, Madia sativa var. sativa) -