Oenothera speciosa is a species in the evening primrose family known by several common names, including pinkladies, pink evening primrose, showy evening primrose, Mexican primrose, and buttercups.
Eryngium pinnatisectum is an uncommon species of flowering plant in the family Apiaceae, known by the common names Tuolumne eryngo and Tuolumne button celery.
Oenothera primiveris is a species of flowering plant in the evening primrose family known by the common names yellow desert evening primrose, bottle evening-primrose, and desert evening-primrose.
Ranunculus canus is a species of buttercup known by the common name Sacramento Valley buttercup. It is endemic to California, where it grows in the Central Valley and adjacent mountain foothills, and the Transverse Ranges just south. It grows in grassland and meadows in woodland and forest habitat. This plant can be very similar in appearance to the California buttercup, and may be difficult to distinguish from it. It is variable in form. In general the plant is a perennial herb producing erect, usually hairy stems up to 65 centimeters tall. The hairy leaves are each made up of three leaflets, leaves occurring lower on the plant with wider leaflets which may be notched to lobed, and upper leaves with narrow, toothed leaflets. The flower has up to 23 shiny yellow petals and many yellow stamens and pistils at the center. The fruit is an achene, borne in a spherical cluster of 11 or more.
Ranunculus eschscholtzii is a species of buttercup flower known by the common name Eschscholtz's buttercup.
Ranunculus flabellaris is a species of flowering plant in the buttercup genus, Ranunculus, known by the common name yellow water buttercup. It is native to much of North America, including the southern half of Canada and most of the United States.
Ranunculus hebecarpus is a species of buttercup known by the common name delicate buttercup. It is native to western North America, including several of the western United States and Baja California, where it grows in grassland, woodland, and chaparral habitat. It is an annual herb producing a slender, hairy stem a few centimeters high or up to 30 centimeters tall. The hairy leaves are borne on long petioles. Their blades are deeply lobed or divided into three leaflets, often with toothed or lobed edges. Flowers have 3 to 5 tiny yellow petals just 1 or 2 millimeters long studded on the bulbous nectary; some flowers lack petals. The plant is most easily identified in its fruiting stage, when the infructescence is a spherical cluster of several tiny disc-shaped achenes with compressed, bristly sides.
Ranunculus lobbii is a species of buttercup known by the common name Lobb's buttercup, or Lobb's aquatic buttercup. It is native to a few areas in western North America, where it is reported from British Columbia, Oregon, and northern California. It is an aquatic plant, growing in various types of shallow-water habitat, including forest ponds and vernal pools. It is an annual herb producing submerged stems 20 to 80 centimeters long which may float at the surface. The blades of the leaves are tiny and divided into threadlike segments. If any leaves develop on stem parts which are exposed to air they are much different in morphology, developing larger, more robust leaves. Flowers have generally 5 petals which are white in color and about half a centimeter long. Many stamens and pistils fill the center of the flower. The fruit is an achene borne in a spherical cluster.
Ranunculus macounii is a species of buttercup known by the common name Macoun's buttercup. It is native to much of North America, from Alaska and northwestern Canada to Newfoundland and Labrador, and the contiguous United States except for the northeast and southeastern areas. It grows in many types of moist habitat, including marshes and wet areas woodlands and scrub. It is generally semi-aquatic, growing in or next to shallow water, or in muddy places. It is a perennial herb producing prostrate, spreading stems that root at nodes that come in contact with moist substrate, or growing erect and branching. The stems are generally hairy, but populations of hairless specimens are known. The leaves are mostly divided into three lobed, toothed leaflets which are borne on long, hairy petioles. The flowers each have five shiny yellow petals under a centimeter long around a center of many stamens and pistils. The fruit is an achene borne in a spherical cluster of 20 or more.
Ranunculus muricatus is a species of buttercup known by the common names rough-fruited buttercup and spinyfruit buttercup. It is native to Europe, but it can be found in many other places in the world, including parts of Africa, Australia, and the western and eastern United States, as an introduced species and agricultural and roadside weed. It grows in wet habitats, such as irrigation ditches. It is an annual or sometimes biennial herb producing a mostly hairless stem up to half a meter long which may grow erect or decumbent along the ground. The leaves have blades a few centimetres in length which are deeply divided into three lobes or split into three leaflets. They are hairless to hairy in texture, and are borne at the tips of long petioles. The flower has five shiny yellow petals under 1 centimetre (0.4 in) long around a lobed central receptacle studded with many stamens and pistils. The fruit is a spiny achene borne in a spherical cluster of 10 to 20.
Ranunculus orthorhynchus is a species of buttercup known by the common name straightbeak buttercup. It is native to western North America from Alaska to California to Utah, where it grows in moist areas in many types of habitat, including meadows and marshes.
Ranunculus parviflorus is a species of buttercup known by the common name smallflower buttercup. It is native to Europe, but it is known on other areas of the world as an introduced species and sometimes a roadside weed, for example, in parts of Australia and the United States.
Ranunculus sardous is a species of buttercup known by the common name hairy buttercup. It is native to Europe and it can be found in many other areas of the world, including parts of the United States and Australia, as an introduced species and a roadside and lawn weed. It grows in many types of disturbed habitat, especially in moist areas. It is an annual or biennial herb producing a mostly erect, hairy stem up to half a meter tall. The hairy leaves are usually divided into three leaflets which are borne on petioles a few centimeters in length. The flower has usually five yellow petals each up to a centimeter long and five reflexed sepals. The fruit is an achene borne in a spherical cluster of up to 35.
Ribes velutinum is a species of currant known by the common name desert gooseberry.
Packera bolanderi is a species of flowering plant in the aster family known by the common names Bolander's ragwort and seacoast ragwort. It is native to the west coast of the United States from Washington to northern California, where it grows in wet coastal forests and woodlands. There are two varieties of the species which differ slightly in morphology and habitat occupied; these varieties have been considered separate species by some authors. The var. bolanderi has thicker leaves, occurs farther south, and occupies more open types of habitat, than does var. harfordii. This plant in general is a perennial herb producing one to three stems up to half a meter tall. The basal leaves have blades up to 12 centimeters long which are divided into several lobes and borne on long, thin petioles. Leaves growing farther up the stem are smaller and have more lobes on their blades. The inflorescence contains several flower heads, each lined with dark green phyllaries. The head contains many golden yellow disc florets and generally either 8 or 13 yellow ray florets each over a centimeter long. The fruit is an achene tipped with a pappus of bristles.
Sidalcea glaucescens is a species of flowering plant in the mallow family known by the common name waxy checkerbloom.
Ranunculus auricomus, known as goldilocks buttercup or Greenland buttercup, is a perennial species of buttercup native to Eurasia. It is a calcicole typically found in moist woods and at the margins of woods. It is apomictic, and several hundred agamospecies have been recognised.
Ranunculus abortivus is a species of flowering plant in the buttercup family, Ranunculaceae. Its common names include littleleaf buttercup, small-flower crowfoot, small-flowered buttercup, and kidneyleaf buttercup. It is widespread across much of North America, found in all ten Canadian provinces as well as Yukon and the Northwest Territories, and most of the United States, except Hawaii, Oregon, California, and parts of the Southwest.
Ranunculus hispidus is a species of perennial flowering plant in the buttercup family, Ranunculaceae. It is commonly known as bristly buttercup or hispid buttercup. It is a small plant native to central and eastern North America that grows to a height up to 30 cm (1 ft) and has 5-petaled yellow flowers.
Ranunculus fascicularis, commonly called early buttercup, is a species of flowering plant in the buttercup family (Ranunculaceae). It is native to the eastern North America, where it is found in Canada and the United States. It is generally widespread in eastern North America, although its populations become sporadic in areas east of the Appalachian Mountains and south of New England. Its natural habitat is in dry areas with sparse vegetation, such as rocky or sandy bluffs, prairies, and savannas.
