| Lepidium pinnatifidum | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Brassicales |
| Family: | Brassicaceae |
| Genus: | Lepidium |
| Species: | L. pinnatifidum |
| Binomial name | |
| Lepidium pinnatifidum | |
Lepidium pinnatifidum is a species of flowering plant in the mustard family known in English by the common name featherleaf pepperweed.
The plant is native to Europe, Central Asia, and the Middle East. [1]
It is known elsewhere as an introduced species, particularly as an invasive species in California.
Lepidium pinnatifidum is an annual or perennial herb growing a single erect stem up to 0.5 metres (1.6 ft) tall. The inflorescence is a raceme of tiny flowers made up mostly of millimeter-long sepals. There are usually no petals, but there occasionally appears a vestigial white petal. The fruit is a rounded, notched capsule only about 2 millimetres (0.08 in) long.
Lepidium is a genus of plants in the mustard/cabbage family, Brassicaceae. The genus is widely distributed in the Americas, Africa, Asia, Europe, and Australia. It includes familiar species such as garden cress, maca, and dittander. General common names include peppercress, peppergrass, pepperweed, and pepperwort. Some species form tumbleweeds. The genus name Lepidium is a Greek word meaning 'small scale', which is thought to be derived from a folk medicine usage of the plant to treat leprosy, which cause small scales on the skin. Another meaning is related to the small scale-like fruit.
Lepidium draba, the whitetop or hoary cress, or Thanet cress, is a rhizomatous perennial flowering plant in the family Brassicaceae. It is native to western Asia and southeastern Europe and widely introduced elsewhere.
Lepidium densiflorum is a species of flowering plant in the mustard family known by the common names common pepperweed and prairie peppergrass.
Lepidium flavum is a species of flowering plant in the mustard family known by the common name yellow pepperweed. It is native to California, Nevada, and Baja California, where it grows in the Sonoran and Mojave Deserts. The species epithet flavum is Latin for yellow and indicates its flower colour.
Lepidium fremontii, the desert pepperweed, is a species of flowering plant in the mustard family which is native to the southwestern United States, where it grows on sandy desert flats and the rocky slopes of nearby hills and mountains. It takes its scientific name from John C. Frémont.
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.
Lepidium latipes is a species of flowering plant in the mustard family known by the common name San Diego pepperweed. It is native to California and Baja California, where it grows in alkaline soils in a number of habitat types.
Lepidium montanum is a species of flowering plant in the mustard family known by the common names mountain pepperweed, mountain peppergrass, mountain pepperwort, and mountain pepperplant. It is native to western North America from Oregon to Montana to northern Mexico, where it can be found in a number of habitats, often on salty or gravelly soils. There are several varieties, many of which are difficult to distinguish.
Lepidium nitidum, known by the common name shining pepperweed, is a species of flowering plant in the mustard family.
Lepidium oxycarpum is a species of flowering plant in the mustard family known by the common names forked pepperweed and sharp-fruited pepperweed.
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.
Lepidium didymum, synonym Coronopus didymus, the lesser swine-cress, is a species of flowering plant in the family Brassicaceae.
Lepidium dictyotum is a species of flowering plant in the mustard family known by the common names alkali pepperweed and alkali pepperwort.
Lepidium oblongum is a widespread North American species of flowering plant in the mustard family known by the common name veiny pepperweed. It is native to Mexico, Guatemala, El Salvador, and the western and south-central United States. It is present as an introduced species in Hawaii. It can grow in many types of habitat.
Asplenium pinnatifidum, commonly known as the lobed spleenwort or pinnatifid spleenwort, is a small fern found principally in the Appalachian Mountains and the Shawnee Hills, growing in rock crevices in moderately acid to subacid strata. Originally identified as a variety of walking fern, it was classified as a separate species by Thomas Nuttall in 1818. It is believed to have originated by chromosome doubling in a hybrid between walking fern and mountain spleenwort, producing a fertile tetraploid, a phenomenon known as alloploidy; however, the hypothesized parental hybrid has never been located. It is intermediate in morphology between the parent species: while its leaf blades are long and tapering like that of walking fern, the influence of mountain spleenwort means that the blades are lobed, rather than whole. A. pinnatifidum can itself form sterile hybrids with several other spleenworts.
Schiedea attenuata is a rare species of flowering plant in the family Caryophyllaceae known by the common name Kalalau schiedea. It is endemic to Hawaii, where it is known only from the Kalalau Valley on the island of Kauai. It is threatened by the degradation of its habitat. It was federally listed as an endangered species of the United States in 2010.
Potentilla basaltica is a species of flowering plant in the rose family known by the common names Soldier Meadows cinquefoil and basalt cinquefoil. It is endemic to a small area of the Modoc Plateau and Warner Mountains in northeastern California and northwestern Nevada.
Thelypodium eucosmum is a species of flowering plant in the mustard family known by the common names arrow-leaf thelypody and world thelypody. It is endemic to Oregon in the United States, where it is known from Grant and Wheeler Counties. There are also historical records of the plant from Baker County.
Lepidium nesophilum is a flowering plant in the mustard and cabbage family. The specific epithet is derived from the Greek nesos (“island”) and -philus (“loving”), alluding to its island home.
Lepidium heterophyllum,, is a species of flowering plant in the mustard family which is native to parts of western Europe, growing in shingle banks, wasteland or cultivated fields.
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