Thomas Nuttall was an English botanist and zoologist who lived and worked in America from 1808 until 1841.
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.
Asa Gray is considered the most important American botanist of the 19th century. His Darwiniana was considered an important explanation of how religion and science were not necessarily mutually exclusive. Gray was adamant that a genetic connection must exist between all members of a species. He was also strongly opposed to the ideas of hybridization within one generation and special creation in the sense of its not allowing for evolution. He was a strong supporter of Darwin, although Gray's theistic evolution was guided by a Creator.
Anisocoma acaulis is a wildflower found in the Mojave, Colorado Deserts, and California's Owens Valley above 2,000 feet (610 m), up to about 7000 ft.
Croomia is a genus of primitive angiosperm herbs in the Stemonaceae family, first described as a genus in 1840.
Psathyrotes is a genus of North American plants in the sneezeweed tribe within the sunflower family. It contains annual and perennial forbs and low subshrubs native to dry areas of southwestern North America. Common names include turtleback, brittlestem, and fanleaf.
Astereae is a tribe of plants in the family Asteraceae that includes annuals, biennials, perennials, subshrubs, shrubs, and trees. Plants within the tribe are present nearly worldwide divided into 170 genera and more than 2,800 species, making it the second-largest tribe in the family behind Senecioneae. They are found primarily in temperate regions of the world.
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.
Wyethia is a genus of North American flowering plants in the sunflower family.
Geraea is a genus of the sunflower family from southwestern United States and northwestern Mexico, commonly called the Desert Sunflower.
Bradburia is a North American genus of flowering plants in the family Asteraceae, native to the southern United States.
Monoptilon bellidiforme is a species of flowering plant in the family Asteraceae known by the common names daisy desertstar and small desert star. It is native to the desert southwest of the United States, where it grows in typical desert habitat such as sandy flats and washes. It is similar to the other Monoptilon, M. bellioides, but it is usually smaller. Its stem is just a few centimeters long, sometimes small enough so that the inflorescence sits at ground level. The leaves are no more than a centimeter long. The flower head has many ray florets which are usually white, sometimes purple-tinged. They are 5 to 7 millimeters long. The fruit is an achene about half a centimeter long including the pappus, which is an elongated bristle surrounded by fused scales.
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.
Diaperia candida, common names silver pygmycudweed and silver rabbit-tobacco, is a plant species in the sunflower family, native to the south-central part of the United States: Texas, western Louisiana, southwestern Arkansas, southeastern Oklahoma.
Gaylussacia ursina, the bear huckleberry, is a plant species native to the coastal plains of the southeastern United States, in the southern Appalachians of.
Charles Lewis Anderson was an American medical doctor who, in addition to the practice of medicine, made important contributions to fields of natural history, especially botany. Educated in Indiana, he spent most of his professional life in the upper Midwest and West. Many plants collected by him were subsequently named in his honor. He wrote about local natural history, and actively engaged in public service in places where he resided.
