Ceanothus is a genus of about 50–60 species of nitrogen-fixing shrubs and small trees in the buckthorn family (Rhamnaceae). Common names for members of this genus are buckbrush, California lilac, soap bush, or just ceanothus. "Ceanothus" comes from Ancient Greek: κεάνωθος (keanōthos), which was applied by Theophrastus to an Old World plant believed to be Cirsium arvense.
Cercocarpus, commonly known as mountain mahogany, is a small genus of at least nine species of nitrogen-fixing flowering plants in the rose family, Rosaceae. They are native to the western United States and northern Mexico, where they grow in chaparral and semidesert habitats and climates, often at high altitudes. Several are found in the California chaparral and woodlands ecoregion.
Chenopodium is a genus of numerous species of perennial or annual herbaceous flowering plants known as the goosefoot, which occur almost anywhere in the world. It is placed in the family Amaranthaceae in the APG II system; older classification systems, notably the widely used Cronquist system, separate it and its relatives as Chenopodiaceae, but this leaves the rest of the Amaranthaceae polyphyletic. However, among the Amaranthaceae, the genus Chenopodium is the namesake member of the subfamily Chenopodioideae.
Ericameria is a genus of North American shrubs in the family Asteraceae.
Packera is a genus of about 75 species of plants in the daisy family, Asteraceae. Most species are commonly called ragworts or grounsels. Its members were previously included in the genus Senecio, but were moved to a different genus based on chromosome numbers, a variety of morphological characters, and molecular phylogenetic evidence.
Thermopsis is a genus of legumes, native to temperate North America and east Asia. They are herbaceous perennials and are known as goldenbanners or false-lupines.
Cistanthe is a plant genus which includes most plants known as pussypaws. These are small, succulent flowering plants which often bear brightly colored flowers, though they vary quite a bit between species in appearance. Some species have flowers that are tightly packed into fluffy-looking inflorescences, the trait that gives them their common name. Many are adapted to arid environments, with some able to withstand climates that almost completely lack rainfall. Cistanthe was a genus created to segregate several species previously classified in Calandrinia. Several species from other closely related genera have been moved into Cistanthe as well.
Cirsium arizonicum, the Arizona thistle, is a North American species of thistle in the family Asteraceae, native to the southwestern United States and northwestern Mexico. It has been found in Arizona, southeastern California, New Mexico, Nevada, Colorado, Utah, Sonora, and northwestern Chihuahua.
Lycium californicum is a spreading shrub in the nightshade family known by the common names California boxthorn and California desert-thorn.
Erigeron foliosus, known by the common names leafy daisy and leafy fleabane, is a North American species of flowering plants in the family Asteraceae.
Calyptridium monandrum, synonym Cistanthe monandra, is a species of flowering plant in the family Montiaceae known by the common name common pussypaws.
Calyptridium parryi, synonym Cistanthe parryi, is a species of flowering plant in the family Montiaceae. It is known by the common name Parry's pussypaws. It is native to the southwestern United States and Baja California. It is a small annual herb producing spreading stems up to about 11 centimeters long. There is a basal rosette of small, thick, spoon-shaped leaves no more than about 3 centimeters long, with many along the stems as well. The inflorescence is a cluster a few centimeters wide, with each bearing three white petals surrounded by a few thin sepals. The fruit is a capsule less than a centimeter wide.
Greeneocharis circumscissa is a species of flowering plant in the borage family, known by the common name cushion cryptantha. It is native to western North America from Washington to Baja California to Colorado and it is also found in Argentina. It grows in sandy or gravelly types of habitat, from mountains to desert, below 9,500 m (31,200 ft) above sea level.
Nemacladus is a genus of flowering plants in the bellflower family known generally as threadplants. Species are native to the southwestern United States and northern Mexico. These are annual herbs with very slender, sometimes threadlike, branching stems bearing small five-lobed flowers.
Acmispon is a genus of flowering plant in the family Fabaceae (legumes), native to North America and the west coast of Chile in South America. It includes several species of American bird's-foot trefoils and deervetches formerly contained in the globally distributed genus Lotus. The former genus Syrmatium is included in Acmispon. The Jepson eFlora accepts only Acmispon.
Montiaceae are a family of flowering plants, comprising about 14 genera with about 230 known species, ranging from small herbaceous plants to shrubs. The family has a cosmopolitan distribution.
Ericameria parryi is a species of flowering plant in the family Asteraceae known by the common name Parry's rabbitbrush. It is native to much of the western United States.
Syrmatium was a formerly accepted genus of flowering plants in the family Fabaceae (legumes), native to the southwestern United States. As of February 2021, it was considered a synonym of Acmispon by Plants of the World Online, and only Acmispon was recognized by the Jepson eFlora.
Greeneocharis is a genus of flowering plants in the family Boraginaceae. There are about 63 species and its native range extends from western U.S. down to northwestern Mexico and to western Argentina. It is part of subtribe of Amsinckiinae.
