Aquilegia formosa, the crimson columbine, western columbine, or (ambiguously) "red columbine", is a common wildflower native to western North America, from Alaska to Baja California, and eastward to Montana and Wyoming.
Philadelphus lewisii, the Lewis' mock-orange, mock-orange, Gordon's mockorange, wild mockorange,Indian arrowwood, or syringa, is a deciduous shrub native to western North America, and is the state flower of Idaho.
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, called sweetshrub, is a genus of flowering plants in the family Calycanthaceae. The genus includes two to four species depending on taxonomic interpretation; three are accepted by most 21st century sources.
Holodiscus discolor, commonly known as ocean spray or oceanspray, creambush, or ironwood, is a shrub of western North America.
Aesculus californica, commonly known as the California buckeye or California horse-chestnut, is a species of buckeye native to California and southwestern Oregon.
Frangula californica is a species of flowering plant in the buckthorn family native to western North America. It produces edible fruits and seeds. It is commonly known as California coffeeberry and California buckthorn.
Cephalanthus occidentalis is a species of flowering plant in the family Rubiaceae, that is native to eastern and southern North America. Common names include buttonbush, common buttonbush, button-willow, buck brush, and honey-bells.
Calycanthus floridus, or commonly known as the eastern sweetshrub, Carolina all spice, or spice bush, is a species of flowering shrub in the family Calycanthaceae. It is identifiable by its dark red flowers and fragrant scent. It is non-invasive and is found in the Southeastern United States region. The Nature Conservancy considers its conservation status to be G5, indicating it is at low risk of extinction.
Cercis occidentalis, the western redbud or California redbud, is a small tree or shrub in the legume family, Fabaceae. It is found across the American Southwest, from California to Utah and Arizona.
Dudleya abramsiisubsp. setchellii, known by common name as the Santa Clara Valley dudleya or Santa Clara Valley liveforever, is a member of the Dudleya genus of succulent perennials, members of the family Crassulaceae. The Santa Clara Valley dudleya, endemic to the Santa Clara Valley region in the southern San Francisco Bay Area, was listed on 3 February 1995, as an endangered species. It is considered to be a subspecies of Dudleya abramsii, but its taxonomic status is still unclear. Its closest relative is Dudleya cymosa subsp. paniculata, which is a morphologically similar sister taxon.
Ribes bracteosum, the stink currant, is a species of currant native to western coastal North America from southeastern Alaska to Mendocino County in California.
Hamamelis vernalis, the Ozark witchhazel is a species of flowering plant in the witch-hazel family Hamamelidaceae, native to the Ozark Plateau in central North America, in Missouri, Oklahoma, and Arkansas. It is a large deciduous shrub growing to 4 m (13 ft) tall.
Sambucus racemosa is a species of elderberry known by the common names red elderberry and red-berried elder.
Clintonia andrewsiana is a species of flowering plant in the lily family Liliaceae. The species was discovered by John Milton Bigelow in 1854 and described by John Torrey in 1856. The specific epithet andrewsiana honors Timothy Langdon Andrews (1819–1908), a "gentleman who assiduously examined the botany" of California during the mid-19th century. The species is commonly known as Andrews clintonia or red clintonia, where the latter refers to the color of the flowers. In California, it is also known as bluebead lily or western bluebead lily, not to be confused with C. borealis, which is likewise known as bluebead lily. The Pomo people of northern California considered the plant to be poisonous.
Sidalcea ranunculacea is a species of flowering plant in the mallow family known by the common name marsh checkerbloom and marsh checker mallow.
Triteleia peduncularis is a monocot flowering plant in the genus Triteleia. Its common names include long-ray brodiaea and longray triteleia. It is endemic to California, where it occurs in the coastal and inland mountain ranges of the northern and central sections of the state. It grows in vernally moist habitat such as meadows, grassland, and vernal pools, often in areas with serpentine soils. It is a perennial wildflower growing from a corm. There are two or three basal leaves measuring up to 40 cm (16 in) long and 1.5 cm (0.6 in) wide. The inflorescence arises on a smooth, erect stem up to 80 cm (31 in) tall. It is an umbel-like cluster of several flowers which are borne on very long, straight pedicels measuring up to 18 cm (7.1 in) long. Each funnel-shaped flower is white, often tinged purple, with six tepals up to 1.6 cm (0.6 in) in length. There are six stamens with white anthers, and the ovary at the center is yellow when the flower is fresh.
Actaea arizonica is a species of flowering plant in the buttercup family known by the common name Arizona bugbane. It is endemic to Arizona in the United States, where it occurs in Coconino, Gila, and Yavapai Counties. Like some other species in genus Actaea, this plant was formerly included in the genus Cimicifuga.
Atriplex nuttallii, also known as Nuttall's saltbush, is native to central and western North America. It has been treated by some botanists as a synonym of Atriplex canescens.
Calycanthus chinensis, known as Chinese sweetshrub, is a species of flowering plant in the family Calycanthaceae, native to Southeast China. It was first given a valid scientific name in 1964. It is cultivated as an ornamental flowering shrub, and has been hybridized with two other species in the genus Calycanthus to combine its larger and broader tepalled flowers with their scented and more colourful ones.
