Townshend Stith Brandegee

Setchellanthus caeruleus is a species of pungent shrub with large blue flowers. It is placed alone in the genus Setchellanthus, which is in turn, is placed alone in the family Setchellanthaceae. It is endemic to Mexico. The genus and the species were circumscribed by Townshend Stith Brandegee in Univ. Calif. Publ. Bot. vol.3 on page 378 in 1909. The genus name of Setchellanthus is in honour of William Albert Setchell (1864–1943), who was an American botanist and marine phycologist who taught at the University of California, Berkeley, where he headed the Botany Department. The specific epithet

Astragalus coccineus is a species of milkvetch known by the common name scarlet locoweed or scarlet milkvetch. It is native to the deserts, scrub, and chaparral of the Southwestern United States in Arizona, California, and Nevada, and in northwestern Mexico.

Allium praecox is a species of wild onion known by the common name early onion.

Yucca valida is a plant species in the family Asparagaceae, native to the Mexican states of Baja California, Baja California Sur, Sonora, and Sinaloa. The common name is datilillo. Yucca valida is a large, branched species up to 7 m (23 feet) tall. Leaves are rigid and lance-like, up to 35 cm (14 inches) long. Dead leaves hang onto the plant below the living leaves, forming a skirt around the trunk. Flowers are white, forming juicy, edible black fruits up to 4.5 cm (1.8 inches) long.

Nolina beldingii is a species of perennial flowering plant in the family Asparagaceae known commonly as the Cape nolina or Belding's beargrass. It is an arborescent monocot growing up to 7 metres (23 ft) high, with fissured bark on a trunk topped with leaf rosettes. The narrow leaves are up to 1.15 m (3.8 ft) long, and are used as thatching by local peoples. This species is endemic to Baja California Sur in Mexico, where it grows only in the highest reaches of the Sierra de la Laguna. It is found primarily in oak forests at elevations over 1,000 m (3,300 ft) along rocky granite outcrops.

Hesperothamnus is a genus of flowering plants belonging to the family Fabaceae. It includes five species native to Mexico. Hesperothamnus brachycalyx Rydb. Hesperothamnus ehrenbergii (Harms) Harms Hesperothamnus littoralis (Brandegee) Brandegee Hesperothamnus pentaphyllus (Harms) Harms Hesperothamnus purpusii Harms

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Salvia greatae is a species of flowering plant in the mint family, Lamiaceae. Its common names include Orocopia sage and lavender sage.

Pinguicula gypsicola is an insectivorous plant of the genus Pinguicula native to the Mexican state of San Luis Potosi, a heterophyllous member of the section Orcheosanthus. It grows in gypsum soils and forms stemless rosettes of upright, narrow leaves.

Agave sobria, the Gulf agave, is a species of plant from the genus Agave. It has concave-like rosettes which holds stocky gray leaves that possesses burgeons. It is endemic to Mexico in mostly dry regions. The rosettes measure 1 to 1.8 m (3 ft 3 in to 5 ft 11 in) in breadth. The species was described in 1889.

Pinarophyllon is a genus of flowering plants belonging to the family Rubiaceae. Its native range is Southeastern Mexico to Guatemala. Species: Pinarophyllon bullatum Standl. Pinarophyllon flavum Brandegee

Amalophyllon is a genus of flowering plants belonging to the family Gesneriaceae. It includes 13 species native to the tropical Americas, ranging from southern Mexico through Central America to Venezuela and Peru.

Agave margaritae is a species of monocarpic succulent plant in the genus Agave commonly known as the Santa Margarita agave. It is endemic to the islands of Santa Margarita and Magdalena in the Magdalena Bay in Baja California Sur, Mexico.

Penstemon purpusii is an uncommon species of penstemon known by the common name Snow Mountain beardtongue. It is endemic to northern California, where it is known only from the Klamath Mountains and northern peaks of the North Coast Ranges. It grows in rocky open and forested mountain habitat. It is a perennial herb growing to a maximum height of 20 centimeters from a woody base. The leaves are 1 to 3 centimeters long, widely lance-shaped and sometimes folded lengthwise. The glandular inflorescence bears tubular flowers up to 3 centimeters long. They are generally purple-blue in color, often

Penstemon floridus is a species of flowering plant in the plantain family known by the common names Panamint penstemon and rose penstemon. It is native to the lower mountain and plateau areas of the Mojave Desert, within eastern California and southwestern Nevada. It grows in canyons, arroyos, and sagebrush scrub.

Penstemon calcareus is a species of penstemon known by the common name limestone penstemon. It is native to California, where it is known from the deserts of central San Bernardino County, as well as the Death Valley area, where its distribution extends just over the border into Nevada. It grows in scrub and woodland, often on limestone substrates.

Oxyrhynchus is a small genus of flowering plants in the legume family, Fabaceae. It includes four species, three native to the tropical Americas from northern Mexico to Colombia, and one native to New Guinea, Maluku, and the Bismarck Archipelago. It belongs to the subfamily Faboideae. A key for the species in this genus has been published.

Mentzelia leucophylla, known by the common name Ash Meadows blazingstar, is a rare species of flowering plant in the Loasaceae. It is endemic to southwestern Nevada, in the Western United States.

Delphinium purpusii is a rare species of larkspur known by the common names Kern County larkspur and rose-flowered larkspur. It is endemic to California where it is known only from Kern and Tulare Counties in the region where the Sierra Nevada meets the Mojave Desert. It grows on rocky cliffs and talus. This wildflower reaches between one half and one meter in height. The erect thin stem has deeply lobed leaves around the base and a small, narrow inflorescence of generally ten to 20 flowers at the top. The flowers of this species are bright pink, making it unusual among the mainly

Chrysophyllum mexicanum is a plant in the family Sapotaceae, native to Mexico and Central America.

Alvordia is a genus of flowering plants in the family Asteraceae. It includes 4 species of shrubs which occur in the states of Baja California and Sonora, Mexico. The genus is characterized by having a secondary clustering of heads into compound units, so that what appears to be a single head is actually a group of heads packed together. The genus is classified as a member of subtribe Helianthinae, the same subtribe that contains the common sunflower (Helianthus). Based on the reported chromosome counts, Alvordia includes both diploid and polyploid species, but the relationships among these

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Phacelia purpusii is a species of phacelia known by the common name Purpus' phacelia, that is endemic to California where it can be found in forests and other habitats within Sierra Nevada or further north in the southernmost portion of the Cascades and adjacent Modoc Plateau. It is a glandular and hairy-textured annual herb exhibiting a mostly erect habit to a maximum height of about 40 centimeters. Its oval leaves are up to 5 centimeters long and smooth or lobed along the edges, and its hairy inflorescences are one-sided, curving or coiling cymes of tiny, bell-shaped flowers. Each flower is

Penstemon stephensii is an uncommon species of penstemon known by the common name Stephens' beardtongue, or Stephens' penstemon. It is endemic to California, where it is known only from the mountains of the Mojave Desert region. It grows in scrub, woodland, and sandy clearings, often on limestone substrates. It is an erect shrub which may reach 1.5 meters in height, with many leafy flowering stems. The thin leaves are oval with wide triangular tips and serrated edges. The oppositely arranged pairs fuse about the stem at the bases, sometimes forming a disc. The inflorescence bears glandular,

Penstemon incertus is a species of penstemon known by the common name Mojave beardtongue. It is endemic to California, where it can be found in many of the southeastern mountain ranges, including the southern reaches of the Sierra Nevada, the Tehachapis, and the mountains of the Mojave Desert region. It is a member of the flora in scrub and woodland, among Joshua Trees and in sandy washes. It is a rounded, branching, erect shrub reaching one meter in maximum height. The thick leaves are linear to lance-shaped with rolled, untoothed edges and reaching up to 7 centimetres (2.8 in). The

Lysiloma candidum, most commonly known as the palo blanco, is a tree of the family Fabaceae near-endemic to the Baja California Peninsula in Mexico. It may grow to a height of 10 metres (33 ft) and is one of the few spineless woody legumes in the region. It has compound leaves with oval gray-green leaflets. The creamy-white, globose clusters of flowers bloom in March through May and perfume the air with a light, spicy fragrance. The flowers are followed by red-brown pods up to 15 centimetres (5.9 in) long that hang delicately on the thin branches. This species is distributed throughout the

Lepidium jaredii is a species of flowering plant in the mustard family known by the common name Jared's pepperweed. It is endemic to California, where it is known from the San Joaquin Valley to just within the central Coast Ranges.

Ipomoea tastensis is a species of plant in the bindweed family, Convolvulaceae. It is native to the Mexican state of Baja California Sur and are particularly abundant in the Sierra El Taste, where the white showy flowers make them a conspicuous part of the landscape. Ipomoea tastensis is a woody vine twining over other vegetation up to a height of 10 m (33 feet). Leaves are heart-shaped, pointed at the tip, up to 8 cm (3.2 inches) long. Flowers are large, white, the corollas up to 14 cm (5.6 inches) long.

Helianthus niveus is a species of sunflower known by the common names showy sunflower and snowy sunflower. It is native to northern Mexico (Sonora, Baja California, Baja California Sur) and the Southwestern United States (Southern California, Arizona, New Mexico, and West Texas). Helianthus niveus is a taprooted annual or perennial sunflower growing to a maximum height over 1 m (40 in). The leaves are oval or lance-shaped, often with irregular lobes or teeth, and are covered in soft, white hairs. The flower heads are fringed with 13-21 bright yellow ray florets up to 2.5 cm (1 in) long

Hechtia montana is a species of plant in the genus Hechtia. This species is endemic to Mexico. It is specifically native to the states of [[Sonora]] and [[Sinaloa]], where it typically grows in dry, rocky environments. The Latin specific epithet montana refers to mountains or coming from mountains. The plant is used as a traditional food source in Sonora, Mexico; the Guarijío call it hichiconi and roast the rosettes, eating them much like an artichoke, while the Tarahumara are said to give it the name chikani and eat the leaves raw year-round.