Juncus mertensianus

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Juncus mertensianus
Juncusmertensianus.jpg
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Juncaceae
Genus: Juncus
Species:
J. mertensianus
Binomial name
Juncus mertensianus
Synonyms

Juncus slwookoorum

Juncus mertensianus is a species of rush known by the common name Mertens' rush or Alaska rush. It is native to much of western North America from Alaska to Saskatchewan to New Mexico, where it grows in wet mountainous areas such as riverbanks and alpine meadows. This is a clumping perennial herb growing from a vertical rhizome. Its smooth, flat stems grow to a maximum height near 40 centimeters. Its few leaves are located at the base and also along the stem. The inflorescence is made up of usually one cluster of many flowers. Each flower has shiny dark brown to black tepals 3 to 4 millimeters long, six stamens with yellowish anthers, and long reddish stigmas, as in image at left. The fruit is a dark, oblong capsule, as in image at right.

Juncus mertensianus plants in full flower at 10,400 ft (3,200 m) Alaska rush Juncus mertensianus swarm flowering.jpg
Juncus mertensianus plants in full flower at 10,400 ft (3,200 m)


Related Research Articles

Juncaceae family of flowering plants commonly known as rushes

Juncaceae is a family of flowering plants, commonly known as the rush family. It consists of 8 genera and about 464 known species of slow-growing, rhizomatous, herbaceous monocotyledonous plants that may superficially resemble grasses and sedges. They often grow on infertile soils in a wide range of moisture conditions. The best-known and largest genus is Juncus. Most of the Juncus species grow exclusively in wetland habitats. A few rushes, such as Juncus bufonius are annuals, but most are perennials.

<i>Dodecatheon jeffreyi</i>

Dodecatheon jeffreyi is a species of flowering plant in the primrose family known by the common names Sierra shooting star, Jeffrey's shooting star, and tall mountain shooting star. This wildflower is native to western North America from California to Alaska to Montana, where it grows in mountain meadows and streambanks. This is a thick-rooted perennial with long, slightly wrinkled leaves around the base. It erects slim, tall, hairy stems which are dark in color and are topped with inflorescences of 3 to 18 showy flowers. Each flower nods, with its pointed center aimed at the ground when fresh, and becomes more erect with age. It has four or five reflexed sepals in shades of pink, lavender, or white which lie back against the body of the flower. Each sepal base has a blotch of bright yellow. From the corolla mouth protrude large dark anthers surrounding a threadlike stigma. The flowers of this species were considered good luck by the Nlaka'pamux people, who used them as amulets and love charms. Dodecatheon jeffreyi is named in honor of John Jeffrey.

<i>Gentianopsis holopetala</i>

Gentianopsis holopetala is a species of flowering plant in the gentian family known by the common names Sierra fringed gentian or just "Sierra gentian"'. It is native to the Sierra Nevada and adjacent mountains in California and Nevada, in wet meadows from 6000 to 11,000 ft in elevation. This is an annual or perennial herb, growing stems which may be anywhere from a few centimeters long to nearly half a meter, and may lay along the ground or grow erect. Its small oval or spoon-shaped leaves are mostly basal but may grow sparsely further along the stem.

<i>Juncus articulatus</i> Species of grass

Juncus articulatus is a flowering plant species in the rush family Juncaceae. It is known by the common name jointleaf rush or jointed rush, which can also refer to J. kraussii from Australia. It is native to Eurasia, Canada, Greenland, and much of the United States. It grows in moist areas, such as wet sand, and thrives in calcareous soils. J. articulatus was found to be more sensitive to drought and salt stress than its congeners J. acutus and J. maritimus. It is a perennial herb producing mainly erect stems from a short rhizome. The stem may root at nodes, and it generally has one or more flattened hollow cylindrical leaves up to 10 centimeters long. Transverse internal partitions or joints may be seen or felt in the leaf of the plant.

<i>Juncus confusus</i> Species of grass

Juncus confusus is a species of rush known by the common name Colorado rush. It is native to western North America from British Columbia to northern California to Colorado, where it grows in coniferous forests and wet, grassy areas such as mountain meadows. It is a bunching rhizomatous perennial herb which grows to a maximum height between 30 and 50 centimeters. Its thready leaves grow from the base of the light green stems to about 15 centimeters long. The inflorescence atop the stem is an array of individual flowers and there is a long bract at the base which may be up to 8 centimeters in length. Each flower has long, pointed tepals with dark and light longitudinal stripes and membranous, translucent borders. There are six stamens. The fruit is a light to dark brown oval-shaped or rounded capsule.

<i>Juncus drummondii</i> Species of grass

Juncus drummondii is a species of rush known by the common name Drummond's rush. It is native to western North America from northern Canada and Alaska to New Mexico, where it grows in wet coniferous forest and alpine meadows and slopes. This is a perennial herb forming narrow, erect tufts to about 40 centimeters in maximum height. The leaves are basal and most have no real blades; instead they form a sheath around the stem a few centimeters long. The inflorescence is borne on the side of the stem toward the top. There is a long, cylindrical bract at the base which extends out past the flowers. Each flower is on a thin pedicel. The thick tepals are dark brown, sometimes with green striping and thin, transparent edges. There are six stamens with yellowish anthers, and red stigmas. The fruit is a capsule.

<i>Juncus ensifolius</i> Species of grass

Juncus ensifolius is a species of rush known by the common names swordleaf rush, sword-leaved rush, and three-stamened rush. It is native to much of western North America from Alaska to central Mexico, and into eastern Canada. It is present in Japan and far eastern Russia, and it has been introduced to many other regions of the world, including Europe, New Zealand, and Australia. It is a plant of wet areas in many types of habitat. This is a rhizomatous perennial herb forming clumps of stems 20 to 60 centimeters tall. The flat but curving leaves are mostly located at the base of the stems and are variable in length. The inflorescence is an array of many rounded clusters of many flowers each. Each flower has a number of dark brown to black tepals a few millimeters long and usually three small stamens enclosed between them. The fruit is an oblong capsule with a small beak on the tip.

<i>Juncus mexicanus</i>

Juncus mexicanus is a species of rush known by the common name Mexican rush. It is native to the southwestern quadrant of the United States and parts of Mexico and Central and South America. It is a plant of moist areas in a great number of habitats, from coast to desert to mountain and low to high elevation.

<i>Juncus nevadensis</i> Species of grass

Juncus nevadensis is a species of rush known by the common name Sierra rush. It is native to much of western North America from British Columbia to New Mexico, where it grows in wet areas in many habitat types. This is a rhizomatous perennial herb which varies in appearance. Its thin, smooth stems reach a maximum height between 10 and 70 centimeters. The thin green leaves may be up to 30 centimeters long. The inflorescences generally contain a number of flowers, with each flower bearing dark to very light brown tepals, six stamens with large anthers, and very long stigmas. The fruit is a shiny chestnut brown capsule.

<i>Juncus textilis</i> Species of grass

Juncus textilis is a species of rush known by the common name basket rush. It is endemic to California, where it grows along the coast and in the coastal mountain ranges of the southern half of the state.

<i>Carex mertensii</i> Species of grass

Carex mertensii is a species of sedge known by the common name Mertens' sedge. It is native to western North America from Alaska to California to Montana, where it grows in moist and wet habitat in mountain forests and meadows. This sedge produces clumps of stems reaching maximum heights between 80 and 120 centimeters. The leaves are small; those toward the bases of the stems are reduced to sheaths only. The inflorescence is a densely packed, bullet shaped cluster of overlapping flowers, mainly hanging on long peduncles. Each inflorescence is generally 2 to 4 centimeters long. Each of the flowers has a dark-colored bract.

<i>Juncus breweri</i> Species of grass

Juncus breweri is a species of rush known by the common name Brewer's rush. It is native to western North America from British Columbia to northern California, where it grows in coastal habitat such as beaches and marshes. It is a perennial herb growing from a tough rhizome which anchors it in sand and other unstable substrate. It produces slender stems up to 1.3 metres long. The leaves are bladeless and are reduced to dark brown sheaths around the stem bases. The inflorescence is a cluster of flowers emerging from the stem and accompanied by a single long, cylindrical bract which looks much like an extension of the stem. The flowers have purplish brown and greenish segments a few millimeters long.

<i>Juncus saximontanus</i> Species of grass

Juncus saximontanus is a species of rush known by the common name Rocky Mountain rush. It is native to much of western North America from Alaska to central Mexico, where it grows in wet habitat, often in mountainous areas, such as bogs and moist meadows.

<i>Equisetum scirpoides</i> Species of vascular plant in the horsetail family Equisetaceae

Equisetum scirpoides Michx., Fl. Bor.-Amer. 2: 281 (1803). 2 n = 216.The smallest of the currently occurring representatives of the genus Equisetum (horsetail).

Juncus scheuchzerioides is a species of rush variously called short rush or greater rush. It has an Antarctic circumpolar distribution and is native to many subantarctic islands in, and on the regions bordering, the Southern Ocean.

<i>Crepis tectorum</i>

Crepis tectorum, the narrowleaf hawksbeard or narrow-leaved hawk's-beard, is an annual or winter annual plant that grows to 30–100 centimetres (12–39 in) high. It is an invasive species and during maturity it has one main stem, which is branched, hairless, and leafy. The leaves are arranged in an alternate manner and are less than 0.5 inches (13 mm) wide. The Greek word krepis means sandal or slipper which resembles the shape of the seed. Narrowleaf hawksbeard originated in Siberia and was introduced to Canada around 1890.

<i>Juncus castaneus</i> Species of grass

Juncus castaneus is a species of rush known by the common name chestnut rush. It has a circumboreal or circumpolar distribution, occurring throughout the northern latitudes of the Northern Hemisphere. It occurs in Europe, Asia, and North America. In North America it occurs from Alaska to Greenland, its distribution spanning Canada and extending south through the Rocky Mountains in the contiguous United States. It is widespread and common in the Canadian Arctic Archipelago.

<i>Pyrola grandiflora</i>

Pyrola grandiflora (pronunciation  , the largeflowered wintergreen, is a hardy perennial evergreen subshrub in the family Ericaceae. It is widely distributed in the Northern Hemisphere from temperate to tundra-like climates.

<i>Pedicularis lanata</i>

Pedicularis lanata is a species of flowering plant in the family Orobanchaceae. It is native to Canada and Alaska. Its common names include woolly lousewort and bumble-bee flower.

Luzula wahlenbergii, commonly known as Wahlenberg's woodrush or reindeer wood-rush, is a perennial species of plant in the genus Luzula of the (rush) family Juncaceae.