| Noccaea caerulescens | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Brassicales |
| Family: | Brassicaceae |
| Genus: | Noccaea |
| Species: | N. caerulescens |
| Binomial name | |
| Noccaea caerulescens (J.Presl & C.Presl) F.K.Mey. | |
| Synonyms | |
List
| |
Noccaea caerulescens (previously Thlaspi caerulescens), [1] the alpine penny-cress [2] or alpine pennygrass, is a flowering plant in the family Brassicaceae. It is found in Scandinavia and Europe.
Noccaea caerulescens is a low biennial or perennial plant that has small basal rosettes of stalked elliptic–lanceolate leaves with entire margins. The one or more flowering stems have small stalkless, alternate leaves clasping the stem. The inflorescence is a dense raceme which continues to lengthen after flowering. The individual flowers are regular, with white or pinkish petals and are about 5 mm (0.2 in) wide. Each has four sepals, four petals, six stamens (four long and two short) with violet anthers, and a single carpel. The fruit is many-seeded and narrowly spatulate and has a notched tip. This plant flowers in late spring. [3]
In Europe it is found in Finland and Sweden, in all but the most northerly regions. It is also found in the Alps, the Massif Central, the Pyrenees, eastern Norway, southern Germany, and northern England. [4] It is a plant of dry hillside meadows, forest margins, banks, gardens, lawns, pastures, field margins, yards and bare places. [3]
Alpine pennycress has been cited in phytoremediation to have special phytoextractional properties and is known to absorb cadmium with very good results and in certain instances is said to have absorbed zinc as well. [5] Leaves accumulate up to 380 mg/kg Cd. [6]
Dryas octopetala, the mountain avens, eightpetal mountain-avens, white dryas or white dryad, is an Arctic–alpine flowering plant in the family Rosaceae. It is a small prostrate evergreen subshrub forming large colonies. The specific epithet octopetala derives from Greek octo 'eight' and petalon 'petal', referring to the eight petals of the flower, an unusual number in the Rosaceae, where five is the normal number. However, flowers with up to 16 petals also occur naturally.
Kosteletzkya pentacarpos, the seashore mallow, also known as the saltmarsh mallow, sweat weed, Virginia saltmarsh mallow, or hibiscus à cinq carpelles, is an herb found in marshes along the eastern seashore of North America, parts of coastal Southern Europe, southwestern Russia, and Western Asia.
Hesperis matronalis is an herbaceous flowering plant species in the family Brassicaceae. It has numerous common names, including dame's rocket, damask-violet, dame's-violet, dames-wort, dame's gilliflower, night-scented gilliflower, queen's gilliflower, rogue's gilliflower, summer lilac, sweet rocket, mother-of-the-evening, Good & Plenties, and winter gilliflower.
Phytoremediation technologies use living plants to clean up soil, air and water contaminated with hazardous contaminants. It is defined as "the use of green plants and the associated microorganisms, along with proper soil amendments and agronomic techniques to either contain, remove or render toxic environmental contaminants harmless". The term is an amalgam of the Greek phyto (plant) and Latin remedium. Although attractive for its cost, phytoremediation has not been demonstrated to redress any significant environmental challenge to the extent that contaminated space has been reclaimed.
Thlaspi, or pennycress, is a genus of herbs of temperate regions of the Eurasian continent. They occur in Central and South Europe, South-West Asia and two species are endemic to China. The Thlaspi has been proven to be a hyperaccumulator of heavy metals such as zinc and cadmium and therefore may be used in phytoremediation initiatives.
Thlaspi arvense, known by the common name field pennycress, is a flowering plant in the cabbage family Brassicaceae. It is native to Eurasia, and is a common weed throughout much of North America and its home.
Lepidium draba, also known as whitetop, 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 has been widely introduced elsewhere.
Saxifraga paniculata is an alpine species of flowering plant in the saxifrage family, with native distribution in the temperate northern hemisphere. Common names include alpine saxifrage, encrusted saxifrage, lifelong saxifrage, lime-encrusted saxifrage, livelong saxifrage, white mountain saxifrage, and silver saxifrage.
Draba verna, common whitlowgrass, is a species of plant in the cabbage family. It is a small spring-flowering annual which is widely dispersed around the world, and which is found on walls, pavements and patches of bare ground. It has a complex taxonomy which is not yet fully elucidated.
Lobelia siphilitica, the great blue lobelia, great lobelia, or blue cardinal flower, is a plant species within the family Campanulaceae. It is an herbaceous perennial dicot native to eastern and central Canada and United States. There are two recognized varieties of Lobelia siphilitica, var. siphilitica and var. ludoviciana. Blooming from August to October, it is short-lived, lasting only for a few years.
Sagina saginoides is a species of flowering plant in the family Caryophyllaceae known by the common names arctic pearlwort or alpine pearlwort. It has a circumboreal distribution; it can be found throughout the northern latitudes of the Northern Hemisphere. It grows in subalpine and alpine climates and other mountainous habitat at lower elevations. This is a small perennial herb producing a slender to threadlike stem just a few centimetres long, growing decumbent or erect. It is sometimes clumpy in form. The leaves are linear in shape and about 1 to 2 centimetres in length. The inflorescence is a solitary flower with five sepals and five small white petals.
Thlaspi californicum is a rare species of flowering plant in the family Brassicaceae known by the common name Kneeland Prairie penny-cress. It is endemic to California, where it is known from only one stretch of grassland in Humboldt County. It is threatened by development. It is a federally listed endangered species of the United States.
Hypericum hirsutum is a species of flowering plant in the family Hypericaceae, commonly known as hairy St John's-wort. It is found in Western Europe.
Hypericum pulchrum is a flowering plant in the family Hypericaceae, commonly known as slender St John's-wort. It is native to Western Europe.
Saxifraga rotundifolia, common name round-leaved saxifrage, is a flowering herb and alpine plant of the genus Saxifraga.
Ranunculus trichophyllus, the threadleaf crowfoot, or thread-leaved water-crowfoot, is a plant species in the genus Ranunculus, native to Europe, Asia and North America.
Callitriche brutia, the pedunculate water-starwort, is a dwarf amphibious annual or perennial dicotyledon herb in the genus Callitriche. The common name of this species is water starwort. It colonizes aquatic environments, such as wetlands, lakes, rivers, streams, and pools, and it grows in oligotrophic conditions, meaning it grows in an environment that has little to sustain life. Pedunculate water-starwort was found in Ireland and England, but is now an invasive species due to its resistance to environmental stressors, and its ability to grow in still water.
Noccaea montana, the alpine pennycress, is a flowering plant in the family Brassicaceae. It is found in the Western United States. It has a basal rosette out of which grows "one or several short, unbranched stems that have small, arrow-shaped leaves and end in dense racemes of tiny white flowers."
Limoniastrum monopetalum, is a species of flowering plant in the family Plumbaginaceae that is native to between Europe, Northern Africa and Western Asia. It has been found in salt marshes, dunes and other coastal areas with high salinity levels. It has silver-grey or light green leaves on multi branching stems. At the ends of the stems are the summer blooming flowers, in shades of pink, purple, lavender and violet. It is known to be salt and drought tolerant, as well as having the ability to withstand some forms of soil pollution.
Boechera retrofracta is a species of flowering plant in family Brassicaceae. The common names include reflexed rockcress.