John Torrey was an American botanist, chemist, and physician. Throughout much of his career, he was a teacher of chemistry, often at multiple universities, while he also pursued botanical work, focusing on the flora of North America. His most renowned works include studies of the New York flora, the Mexican Boundary, the Pacific railroad surveys, and the uncompleted Flora of North America.
Rubus leucodermis, also called whitebark raspberry or blackcap raspberry, is a species of Rubus native to western North America, from Alaska southward along the Pacific coast as far as California, Arizona, New Mexico, and Chihuahua.
Baileya is a genus of plants in the aster family Asteraceae. All are native to the southwestern United States and to Mexico.
Croomia is a genus of primitive angiosperm herbs in the Stemonaceae family, first described as a genus in 1840.
Helianthella, the little sunflower, is a genus of North American plants in the sunflower family.
Prunus fasciculata, also known as wild almond, desert almond, or desert peach is a spiny and woody shrub producing wild almonds, which is native to western deserts of North America.
Hulsea is a small genus of North American flowering plants in the family Asteraceae known commonly as alpinegold.
Geraea is a genus of the sunflower family from southwestern United States and northwestern Mexico, commonly called the Desert Sunflower.
Monoptilon (desertstar) is a small genus of annual plants in the tribe Astereae within the family Asteraceae.
Gutierrezia californica is a North American species of flowering plant in the family Asteraceae known by the common names San Joaquin snakeweed and California matchweed. It is native to California and Arizona in the United States and Baja California in Mexico. It grows in sunny sandy or rocky areas in grasslands, scrub, or open woodlands.
Schizachne is a genus of Eurasian and North American plants in the grass family. The only accepted species is Schizachne purpurascens, commonly called false melic. Three subspecies are recognized:
Munroa is a genus of New World plants in the grass family, native to North and South America.
Solidago houghtonii is a rare North American species of flowering plant in the aster family known as Houghton's goldenrod. It is native to southern Ontario, Canada and the northern United States. It is threatened by the loss and degradation of its habitat. It is a federally listed threatened species of the United States and it is designated a species of special concern by Canada's Committee on the Status of Endangered Wildlife in Canada.
Baccharis salicina is a species of North American plants in the family Asteraceae. Common names include willow baccharis, and Great Plains false willow. It is a shrub that grows in mildly saline areas.
Galium lanceolatum is a species of plant in the Rubiaceae.
Aphanostephus riddellii is a North American species of flowering plants in the family Asteraceae, with the common name Riddell's lazydaisy. It is native to the southwestern and south-central United States, as well as to the state of Coahuila in northern Mexico.
Bradburia hirtella is a North American species of flowering plants in the family Asteraceae, native to Texas and Louisiana in the south-central United States.
Bradburia pilosa, the soft goldenaster, is a North American species of flowering plants in the family Asteraceae, native to the south-central United States, primarily the southeastern Great Plains and lower Mississippi Valley, in the states of Texas, Oklahoma, Kansas, Missouri, Arkansas, Louisiana, Tennessee, Mississippi, and Alabama. Additional populations are reported farther east but these appear to be introductions.
Erigeron tenuis is a North American species of flowering plant in the daisy family known by the common name slender-leaf fleabane. It is native to the south-central part of the United States from central Texas to the Florida Panhandle, north as far as Missouri and Kansas.
Erigeron vernus is a North American species of flowering plant in the daisy family known by the common name early white-top fleabane. It is native to the southeastern United States from Virginia to Louisiana.
