Hesperevax caulescens is a small flowering plant in the family Asteraceae. One common name for the plant is hogwallow starfish, as it is a somewhat flat, star-shaped plant which grows in mud. Another common name is dwarf dwarf-cudweed, as the three members of genus Hesperevax are known as dwarf-cudweeds and this species is smaller than the others. It may also be called involucrate evax, since its former Latin name was Evax involucrata. This annual plant is a member of the vernal pool plant community in California, where it is possibly an endemic species, although its range might extend into Baja California. The hogwallow starfish radiates pale green spoon-shaped leaves in a basal rosette and extends a short erect stem. The flowers are less than two millimeters wide. This species grows along the outskirts of vernal pools in areas which have dried.
Erigeron bloomeri is a North American species of flowering plants in the family Asteraceae known by the common name scabland fleabane.
Erigeron clokeyi is a North American species of flowering plant in the family Asteraceae known by the common name Clokey's fleabane, or Clokey's daisy.
Erigeron compactus is a species of flowering plant in the family Asteraceae known by the common names cushion daisy, fernleaf fleabane, and compact daisy.
Erigeron elegantulus is a North American species of flowering plants in the family Asteraceae known by the common names blue dwarf fleabane and volcanic daisy.
Eriophyllum confertiflorum, commonly called golden yarrow or yellow yarrow, is a North American species of plant in the family Asteraceae, native to California and Baja California. It has wooly leaves when young, and yellow flower heads. "Eriophyllum" means "wooly leaved."
Hesperevax is a small genus of flowering plants in the tribe Gnaphalieae of the family Asteraceae.
Hulsea brevifolia is a species of flowering plant in the family Asteraceae known by the common name shortleaf alpinegold, or shortleaf hulsea. It is endemic to California, where it is an uncommon resident of the High Sierra. It is found between 6,000–8,000 feet (1,800–2,400 m) in elevation.
Chaetopappa ericoides is a species of flowering plant in the family Asteraceae known by the common names rose heath and heath-leaved chaetopappa. It is native to the southwestern and western Great Plains regions of the United States, plus northern Mexico. It is found in California, Nevada, Arizona, Utah, New Mexico, Colorado, Wyoming, Texas, Oklahoma, Kansas, Nebraska, Chihuahua, Coahuila, Sonora, Durango, Zacatecas, San Luis Potosí, and Nuevo León.
Agoseris glauca is a species of flowering plant in the family Asteraceae known by the common names false dandelion, pale agoseris, prairie agoseris, and short-beaked agoseris. It is native to western North America.
Symphyotrichum frondosum is a species of flowering plant in the family Asteraceae native to western North America. Commonly known as short-rayed alkali aster, it is an annual or perennial herbaceous plant that may reach 140 centimeters tall.
Balsamorhiza sericea is a species of flowering plant in the tribe Heliantheae of the family Asteraceae known by the common name silky balsamroot. It is native to the Klamath Mountains of northwestern California and southwestern Oregon, with additional populations in the Blue and Steens Mountains in eastern Oregon. It grows in rocky areas, sometimes on serpentine soils.
Calycadenia villosa is an uncommon species of flowering plant in the family Asteraceae known by the common name dwarf western rosinweed. It is endemic to central California, where it is known from a limited distribution in the Central Coast Ranges in Monterey County and San Luis Obispo County, with a few populations in Santa Barbara and western Fresno Counties. There are perhaps 16 occurrences.
Cirsium scariosum is a species of thistle known by the common names meadow thistle, elk thistle and dwarf thistle. It is native to much of western North America from Alberta and British Columbia, south to Baja California. There are also isolated populations on the Canadian Atlantic Coast, on the Mingan Archipelago in Québec, where it is called the Mingan thistle.
Erigeron aequifolius is a rare species of flowering plant in the family Asteraceae known by the common names Hall's daisy and Hall's fleabane.
Erigeron reductus is a species of flowering plant in the family Asteraceae known by the common name lesser California rayless fleabane. It is endemic to California, from Trinity County south as far as Alameda County and El Dorado County.
Hesperevax acaulis is a species of flowering plant in the family Asteraceae known by the common name stemless dwarf cudweed. It is native to California and Oregon where it grows in many types of mountain, valley, and coastal habitats, including areas recently affected by wildfire. This petite woolly annual forms a small bunch on the ground. Despite its common name it sometimes has a stem a few centimeters long. The wool-coated leaves appear in pairs or clusters, each leaf measuring a few millimeters to three centimeters long. In the center of the leaf array is the inflorescence, which is a single flower head or tightly packed cluster of several heads, each just a few millimeters wide. The flower head contains several tiny disc florets.
Osmadenia is a genus of flowering plants in the family Asteraceae. It contains the single species Osmadenia tenella, which is known by the common name false rosinweed.
Rudbeckia californica is a species of flowering plant in the family Asteraceae, known by the common name California coneflower.
Ericameria paniculata is a species of flowering plant in the sunflower family Asteraceae, native to the southwestern United States. It is an evergreen yellow-flowered desert shrub.
