Layia platyglossa, commonly called coastal tidytips, is an annual wildflower of the family Asteraceae, native to western North America.
Calycadenia is a genus of flowering plants in the family Asteraceae, known commonly as the western rosinweeds. They are native to California, especially around the Central Valley. The ranges of two species (C. fremontii + C. truncata) do extend north into Oregon.
Malacothrix is a genus of plants in the tribe Cichorieae within the family Asteraceae. They are known generally as desert dandelions or desertdandelions. Most are native to western North America although a few have been introduced to South America. Several are found only on offshore islands in the Pacific.
Chaenactis is a genus of plants in the family Asteraceae which are known generally as pincushions and dustymaidens.
Pyrrocoma is a genus of North American plants in the family Asteraceae. These wildflowers are sometimes known as goldenweeds.
Townsendia is a genus of North American plants in the tribe Astereae within the family Asteraceae.
Chaetopappa is a genus of plants in the family Asteraceae which are known generally as leastdaisies.
Holozonia is a North American genus of flowering plants in the family Asteraceae. It contains only one known species Holozonia filipes, which is known by the common name whitecrown. It is endemic to California.
Layia chrysanthemoides is a species of flowering plant in the family Asteraceae known by the common name smooth tidytips, or smooth layia.
Layia discoidea is a rare species of flowering plant in the family Asteraceae known by the common name rayless tidytips, or rayless layia.
Layia fremontii is a species of flowering plant in the family Asteraceae known by the common name Frémont's tidytips. Both its common name, and its specific epithet are derived from John C. Frémont.
Layia glandulosa is a species of flowering plant in the family Asteraceae known by the common names whitedaisy tidytips and white layia. It is native to western North America south from central Washington (state) to Baja California and east to Utah and Arizona, where it is common in a number of habitat types.
Layia heterotricha is a species of flowering plant in the family Asteraceae known by the common name pale yellow tidytips, or pale yellow layia.
Layia pentachaeta is a species of flowering plant in the family Asteraceae known by the common name Sierra tidytips, or Sierra layia.
Layia septentrionalis is an uncommon species of flowering plant in the family Asteraceae known by the common name Colusa tidytips, or Colusa layia.
Chloracantha is a monotypic genus of flowering plants in the aster family, containing the single species Chloracantha spinosa. It is distributed in the southwestern and south-central United States, most of Mexico, and much of Central America. Its English language common names include spiny chloracantha, spiny aster, devilweed aster, and Mexican devilweed. In Spanish it is known as espina de agua, espinaza, and espinosilla.
Stenotus is a genus of flowering plants in the family Asteraceae. There are four species, all native to western North America. They are known commonly as mock goldenweeds.
Xanthisma, common name sleepy-daisy, is a genus of flowering plants in the family Asteraceae.
Corethrogyne filaginifolia is a species of flowering plant in the daisy family known by the common names common sandaster and California aster.
Tetradymia is a genus of North American shrubs in the groundsel tribe within the sunflower family. Horsebrush is a common name for plants in this genus.
