Dendromecon rigida, also called bush poppy or tree poppy, is a shrub or small tree of the Papaveraceae native to California and Baja California.
Calycanthus occidentalis, commonly called spice bush or western sweetshrub, is a species of flowering shrub in the family Calycanthaceae that is native to California and, according to some sources, Washington state. It grows along streams and moist canyons in the foothills of mountains.
Dryopteris arguta, with the common name coastal woodfern, is a species of wood fern. It is native to the west coast and western interior mountain ranges of North America, from British Columbia, throughout California, and into Arizona.
Asclepias fascicularis is a species of milkweed known by the common names narrowleaf milkweed and Mexican whorled milkweed. It is a perennial herb that grows in a variety of habitats.
Polycarpon tetraphyllum, commonly known as four-leaved allseed, is a plant of the family Caryophyllaceae. An annual herb growing to 15 cm in height, it is found on sandy soils, in coastal areas and on wasteland. Native to Europe, it is also naturalised in parts of North America, Australia and elsewhere. It is rare in Britain, except in the Scilly Isles.
Arctostaphylos viscida, with the common names whiteleaf manzanita and sticky manzanita, is a species of manzanita.
Horkelia parryi is a species of flowering plant in the rose family known by the common name Parry's horkelia. It is endemic to California, where it grows in the chaparral of the Sierra Nevada foothills. This is a low, mat-forming perennial herb growing in unobtrusive green patches on the ground. The leaves are 5 to 10 centimeters long and are each made up of small, toothed, oval-shaped leaflets. The somewhat hairy green to reddish-green stems are 10 to 30 centimeters long and bear inflorescences of a few flowers each. The flower has minute bractlets under larger, pointed sepals and five white petals. The center of the flower contains a ring of stamens around a patch of up to 50 thready pistils.
Abronia pogonantha is a species of flowering plant in the four o'clock family (Nyctaginaceae) known by the common name Mojave sand-verbena. It is native to California and Nevada, where it grows in the Mojave Desert, adjacent hills and mountains, and parts of the San Joaquin Valley in the Central Valley.
Agastache parvifolia is a species of flowering plant in the mint family known by the common name small-leaf giant hyssop. It is endemic to far northern California, where it grows in woodlands. It is an uncommon species and is sometimes considered a local subspecies of Agastache urticifolia.
Alyssum alyssoides is a species of flowering plant in the mustard family known by several common names, including pale madwort and yellow alyssum. It is native to Eurasia, but it can be found throughout much of the temperate world as an introduced species and sometimes a common weed. For example, it has been noted as a weed in the western United States. It often appears in arable fields, sandy tracks, pits, and docks.
Alyssum desertorum is a species of flowering plant in the family Brassicaceae known by the common name desert madwort. It is native to Europe, North Africa and Asia, and it is found in parts of western North America as an introduced species and sometimes a weed. This is a hairy annual herb producing upright stems up to about 20 centimeters tall. The leaves are linear to oblanceolate-linear in shape, 0.5-4 millimeters long and 0.3-3 millimeters wide. The entire plant is covered by 8-20 rayed stellate trichomes, giving the plant a grayish appearance. It produces small yellowish flowers with petals that are 2-2.5 millimeters long and round, notched fruits 2.5-4.5 millimeters long. The brown seeds are winged, arranged two to a locule, and are about 1.5 millimeters long.
Arctostaphylos luciana is a species of manzanita known by the common name Santa Lucia manzanita, is endemic to California.
Calandrinia breweri is a species of flowering plant in the family Montiaceae known by the common name Brewer's redmaids.
Caulanthus amplexicaulis is a species of flowering plant in the family Brassicaceae known by the common name claspingleaf wild cabbage.
Caulanthus glaucus is a species of flowering plant in the family Brassicaceae known by the common names glaucous wild cabbage, bigleaf wildcabbage, and limestone jewelflower.
Chenopodium desiccatum is a species of flowering plant in the family Amaranthaceae known by the common names aridland goosefoot and slimleaf goosefoot.
Clarkia tembloriensis is a rare species of flowering plant in the evening primrose family, known by the common name Temblor Range clarkia and belonging to the Onagraceae family.
Potentilla norvegica is a species of cinquefoil known by the common names rough cinquefoil, ternate-leaved cinquefoil, and Norwegian cinquefoil. It is native to Europe, Asia, and parts of North America, and it can be found elsewhere as an introduced species.
Potentilla rimicola is a species of cinquefoil-Potentilla, known by the common name cliff cinquefoil.
Sagittaria sanfordii is an uncommon species of flowering plant in the water plantain family known by the common names valley arrowhead and Sanford's arrowhead that is endemic to California.
