Plagiobothrys acanthocarpus is a species of flowering plant in the borage family known by the common name adobe popcornflower. It is native to California and northwestern sections of Mexico, where it can be found in moist areas on clay soil, such as vernal pools. It is an annual herb with a spreading or erect stem 10 to 40 centimeters in length. The leaves are linear or lance-shaped to oblong and several centimeters in length. The plant is coated in rough hairs. The inflorescence is a series of tiny flowers, each with a yellow-throated, five-lobed white corolla less than 3 millimeters wide. The nutlets are covered in long prickles with some bristles between.
Plagiobothrys arizonicus is a species of flowering plant in the borage family known by the common name Arizona popcornflower.
Plagiobothrys bracteatus is a species of flowering plant in the borage family known by the common name bracted popcornflower.
Plagiobothrys canescens is a species of flowering plant in the borage family known by the common name valley popcornflower. It is endemic to California, where it is a common wildflower in valley, foothill, desert, coastline, and canyon habitat in the central and southern regions of the state.
Plagiobothrys collinus is a species of flowering plant in the borage family known by the common name Cooper's popcornflower.
Plagiobothrys distantiflorus is a species of flowering plant in the borage family known by the common name California popcornflower. It is endemic to California, where it is known only from the northern and central Sierra Nevada foothills.
Plagiobothrys glyptocarpus is a species of flowering plant in the borage family known by the common name sculptured popcornflower. It is native to Oregon and northern California, where it grows in moist woodland and grassland habitat. It is an annual herb growing mostly erect to a maximum height near half a meter. The leaves along the stem are 4 to 8 centimeters long and the herbage is coated in rough hairs. The inflorescence is a series of small white flowers with rounded five-lobed corollas 2 to 9 millimeters wide. The fruit is a nutlet about 2 millimeters wide with a rough, tubercled or ribbed surface visible on magnification.
Plagiobothrys greenei is a species of flowering plant in the borage family known by the common name Greene's popcornflower. It is native to Oregon and northern California, where it grows in moist woodland and grassland habitat. It is an annual herb with a spreading or erect stem growing 10 to 40 centimeters long. The leaves along the stem are 1 to 5 centimeters long and the herbage is coated in rough hairs. The inflorescence is a series of tiny flowers with white five-lobed corollas no more than 3 millimeters wide. The fruit is a minute nutlet with a surface covered in long prickles.
Plagiobothrys hispidus is a species of flowering plant in the borage family known by the common names Cascade popcornflower or bristly popcornflower. It is native to the mountains and plateaus around the intersection of Oregon, northeastern California, and northwestern Nevada, where it grows in dry, sandy habitat. It is an annual herb growing erect to a maximum height around 20 centimeters. It is very hairy, with rough and woolly hairs. The pointed leaves are up to 4 centimeters long. The inflorescence is a short, coiling series of tiny white flowers each only about a millimeter wide.
Plagiobothrys humistratus is a species of flowering plant in the borage family known by the common names dwarf popcornflower or low popcornflower. It is endemic to the Central Valley of California, where it grows in grassland habitats, including vernal pools and other wetland areas.
Plagiobothrys jonesii is a species of flowering plant in the borage family known by the common name Mojave popcornflower. It is native to the southwestern United States and northern Mexico, where it grows in desert mountains and flats in scrub and woodland habitat.
Plagiobothrys kingii is a species of flowering plant in the borage family known by the common name Great Basin popcornflower. It is native to the Great Basin and Mojave Desert of the United States, where it grows in desert and plateau scrub habitat, among saltbush and on rocky slopes and flats.
Plagiobothrys leptocladus is a species of flowering plant in the borage family known by the common names finebranched popcornflower and alkali plagiobothrys. It is native to western North America from Alaska to the Dakotas to northern Mexico, where it can be found in varied types of wet habitat, including inundated alkali flats and vernal pools.
Plagiobothrys nothofulvus is a species of flowering plant in the boraginaceae family known by the common names rusty popcornflower and foothill snowdrops. It is native to western North America from Washington, and California, to northern Mexico. It is a spring wildflower in grassy meadows, woodlands, coastal sage scrub, and wetland-riparian habitats.
Plagiobothrys parishii, known by the common name Parish's popcornflower, is an uncommon species of flowering plant in the borage family.
Plagiobothrys scouleri is a common species of flowering plant in the borage family known by the common name Scouler's popcornflower and white forget-me-not. It is native to North America, where it can be found from Alaska throughout southern Canada and the western and central United States. It is present in the United Kingdom as an occasional introduced species.
Plagiobothrys stipitatus is a species of flowering plant in the borage family known by the common name stalked popcornflower and stipitate forget-me-not. It is native to Oregon and most of California, where it grows in vernal pools and similar wet habitat types. It is an annual herb producing a narrow, hollow, erect stem up to half a meter tall. It is coated in rough hairs. The pointed, hairy leaves along the stem are up to 11 centimeters long. The inflorescence is a series of five-lobed white flowers 2 millimeters to over one centimeter wide. The fruit is a narrow, ribbed nutlet.
Plagiobothrys strictus is a rare species of flowering plant in the borage family known by the common name Calistoga popcornflower. It is endemic to Napa County, California, where it is known from only two small locations near Calistoga.
Plagiobothrys tenellus is a species of flowering plant in the borage family known by the common names Pacific popcornflower and slender popcornflower. It is native to western North America from British Columbia to Mexico, where it is a common member of the flora in several types of habitat.
Plagiobothrys uncinatus is a species of flowering plant in the borage family known by the common names Salinas Valley popcornflower and hooked popcornflower. It is endemic to the Central Coast Ranges of California, where it is known mainly from the Santa Lucia Mountains and Gabilan Range in Monterey County.
