Alliaria petiolata, or garlic mustard, is a biennial flowering plant in the mustard family (Brassicaceae). It is native to Europe, western and central Asia, north-western Africa, Morocco, Iberia and the British Isles, north to northern Scandinavia, and east to northern Pakistan and Xinjiang in western China.
Rapistrum, the bastardcabbages, is a genus of the family Brassicaceae with a distinctive cross like arrangement of its petals. Species of Rapistrum are annual to perennials. The yellow petals are accompanied by sepals that stand vertically at near right angles (erecto-patent). Leaf shape and arrangement varies from rough toothed (dentate) to a configuration of opposingly lobed pairs along the plant stalk, pinnately lobed.
Brassica tournefortii is a species of plant known by the common names Asian mustard, pale cabbage, African mustard, and Sahara mustard, and is well known as an invasive species, especially in California.
Descurainia pinnata is a species of flowering plant in the family Brassicaceae known by the common name western tansymustard. It is native to North America, where it is widespread and found in varied habitats. It is especially successful in deserts. It is a hardy plant which easily becomes weedy, and can spring up in disturbed, barren sites with bad soil. This is a hairy, heavily branched, mustardlike annual which is quite variable in appearance. There are several subspecies which vary from each other and individuals within a subspecies may look different depending on the climate they endure. This may be a clumping thicket or a tall, erect mustard. It generally does not exceed 70 centimeters in height. It has highly lobed or divided leaves with pointed, toothed lobes or leaflets. At the tips of the stem branches are tiny yellow flowers. The fruit is a silique one half to two centimeters long upon a threadlike pedicel. This plant reproduces only from seed. This tansymustard is toxic to grazing animals in large quantities due to nitrates and thiocyanates; however, it is nutritious in smaller amounts. The flowers are attractive to butterflies. The seeds are said to taste somewhat like black mustard and were utilized as food by Native American peoples such as the Navajo.
Guillenia flavescens is a species of mustard plant known by the common name yellow mustard, but it is not the only species known by that name. Sinapis alba is probably the plant more widely known as yellow mustard. G. flavescens is a thin-stemmed annual herb growing large, lobed or toothed leaves up to 22 centimeters long around its base, and smaller, less toothed leaves along its gray-pink to brown stem. At intervals along the upper stem appear cream, yellowish, or very pale purple flowers, each somewhat cuboid in shape and about a centimeter long. The tips of the petals around the mouth are curled, flared, or clawlike. The fruit is a thin silique up to 9 centimeters long. This species is endemic to California, where it grows in the valleys and mountains surrounding the San Francisco Bay Area.
Guillenia lasiophylla is a species of mustard plant known by the common names California mustard and slenderpod jewelflower. It is native to western North America from British Columbia to northern Mexico. It can be found in a variety of habitats such as desert flats, gravelly areas, limestone rocks, talus slopes, sandy banks, and grassy fields. This is a thin-stemmed erect annual herb with long lobed, toothed leaves surrounding the base of the plant and smaller leaves lining the stem. The top of the plant is occupied by an inflorescence of flowers, each with widely spaced oval-shaped white or yellowish petals half a centimeter long. The fruit is a flat, narrow silique up to 7 centimeters long which hangs downward from the stem. Flowers bloom March to June.
Lepidium perfoliatum is a species of flowering plant in the mustard family known by the common names clasping pepperweed and perfoliate pepperwort. It is native to Europe and Asia and it can be found in other parts of the world as an introduced species.
Alyssum alyssoides is a species of flowering plant in the mustard family known by several common names, including pale madwort and yellow alyssum. It is native to Eurasia, but it can be found throughout much of the temperate world as an introduced species and sometimes a common weed. For example, it has been noted as a weed in the western United States. It often appears in arable fields, sandy tracks, pits, and docks.
Conringia orientalis is a species of flowering plant in the mustard family known by the common name hare's ear mustard. It is native to Eurasia but it is known elsewhere as an introduced species and sometimes a noxious weed. It is weedy in its native range and also in North America, where it is a widespread invasive species, especially in central Canada.
Erysimum repandum is a species of Erysimum known by several common names, including spreading wallflower, spreading treacle-mustard, and bushy wallflower.
Bastard cabbage is a common name for several plants and may refer to:
Sisymbrium loeselii is a species of flowering plant in the family Brassicaceae known by several common names, including small tumbleweed mustard, false London-rocket, throughe(ver:kashmiri) and tall hedge mustard. It is native to Eurasia, and it is known on other continents as an introduced species and in some areas a common roadside weed. It is an annual herb producing a hairy, erect stem which can exceed a meter in height. The leaf blades are divided into triangular, lance-shaped, and toothed linear lobes, and are borne on petioles. The top of the stem is occupied by a raceme of flowers with bright yellow petals each measuring just under a centimeter long. The fruit is a silique up to 3.5 centimeters in length containing tiny seeds.
Streptanthus albidus is a species of flowering plant in the mustard family known by the common name Metcalf Canyon jewelflower. It is endemic to California, where it is known only from the Central Coast Ranges and San Francisco Bay Area. It grows in open areas such as grasslands, often on serpentine soils.
Streptanthus barbiger is a species of flowering plant in the mustard family known by the common name bearded jewelflower. It is endemic to California, where it is limited to the North Coast Ranges. It grows in woodlands and chaparral habitat, often on serpentine soils. It is an annual herb producing a branching stem up to about 80 centimeters in maximum height. Leaves near the base of the stem are lance-shaped to oval and pointed, usually with toothed edges, the blades measuring up to 7 centimeters long. Leaves higher on the stem may be longer but are narrower and have smooth edges. Flowers occur at intervals along the upper stem. Each has a spherical to urn-shaped calyx of greenish yellow or purple sepals under a centimeter long. Whitish or purple-tinged petals up to a centimeter long emerge from the tip. The fruit is a long, flat, curving silique which may be 7 centimeters in length.
Streptanthus batrachopus is a rare species of flowering plant in the mustard family known by the common name Mt. Tamalpais jewelflower. It is endemic to Marin County, California, where it is known only from Mt. Tamalpais and surrounding terrain. There are fewer than ten known occurrences.
Streptanthus fenestratus is an uncommon species of flowering plant in the mustard family known by the common name Tehipite Valley jewelflower.
Streptanthus glandulosus is a species of flowering plant in the mustard family known by the common name bristly jewelflower. It is native to California and southwestern Oregon, where it grows in many types of habitat, including grassland, chaparral, and woodlands. Genetic and other analyses indicate that it is a species complex with ten subspecies which evolved as populations were isolated from each other. The complex includes subspecies previously considered separate species, such as the rare Tiburon jewelflower endemic to the San Francisco Bay Area. Plants in the complex are variable. In general they are annual herbs growing 10 centimeters to over a meter in height. They may be hairless to hairy to bristly. The ephemeral basal leaves have blades borne on winged petioles. Leaves higher on the stem are linear to lance-shaped and clasp the stem at their bases. Flowers occur at intervals along the upper stem. Each flower has an urn-shaped calyx of sepals one half to over one centimeter long which can be most any color from white to yellowish to pink or purple to nearly black. Purple, white, or purple-veined white petals emerge from the tip. The fruit is a straight or curving silique up to 11 centimeters long.
Caulanthus anceps is a species of flowering plant in the family Brassicaceae known by the common name Lemmon's mustard.
Thelypodium crispum is a species of flowering plant in the mustard family known by the common name crisped thelypody.
Streptanthus bracteatus is a species of flowering plant in the mustard family known by the common names bracted jewelflower and bracted twistflower. It is endemic to Texas in the United States.
