Heteranthera limosa | |
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Heteranthera limosa | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Clade: | Commelinids |
Order: | Commelinales |
Family: | Pontederiaceae |
Genus: | Heteranthera |
Species: | H. limosa |
Binomial name | |
Heteranthera limosa | |
Synonyms [1] | |
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Heteranthera limosa is an annual flowering plant in the water hyacinth family known by the common names ducksalad and blue mudplantain. It grows in shallow water or on mud. It is considered a threatened species in parts of the central United States, and an invasive species weed in California, where it is a nuisance in rice paddies. It is also occasional in Florida waterways.
Heteranthera limosa is a polymorphic annual growing 2 to 6 inches tall. It looks different depending on the type of habitat it is growing in; plants in water look different than those growing on muddy ground. It is easily confused with other closely related species, so reliable identification is based on flowering plants. [2] It has thick, spade-shaped green leaves with parallel veins. When plants are grown in water the leaves may be above or below the water surface, with submerged leaves linear in shape. [3] The branching stems are creeping and maybe as long as 15 inches, rooting at the nodes. [4] Its blue, purple, or white, perfect flowers, are six-merouse with narrow petals and three stamens. The nearly 1 inch wide flowers are subtended by a spathe. [4] The flowering period is very brief subject to the correct environmental conditions, [5] and can occur from May to November. The flowers open early in the morning and wither by noon. [4]
Heteranthera limosa grows in shallow water with the best growth in water that is less than 5cm deep; it is also found immersed at pond edges and in roadside ditches. [6] It is found growing in Arizona, Arkansas, California, Colorado, Florida, Illinois, Iowa, Kansas, Kentucky, Louisiana, Mississippi, Missouri, Nebraska, New Mexico, Oklahoma, South Dakota, Tennessee, Texas, Mexico, West Indies, Central America, and South America (Argentina, Bolivia, Brazil, Colombia, Ecuador, Paraguay, Venezuela). [6]
In Minnesota this species is at the northern limit of its natural distribution where it is found in the southwestern corner of the state, it occurs in shallow vernal pools that form from water that seeps between rock layers that includes Sioux quartzite; it is found in association with other rare species in the state such as Isoetes melanopoda , Plantago elongata , and Cyperus acuminatus . [5] In Minnesota it is listed as a threatened species, where it is rare and limited to specific unusual microhabitats. [2]
Alisma plantago-aquatica, also known as European water-plantain, common water-plantain or mad-dog weed, is a perennial flowering aquatic plant widespread across most of Europe and Asia from Portugal and Morocco to Japan, Kamchatka and Vietnam. It is also regarded as native in northern and central Africa as far south as Tanzania, and in Australia. It is reportedly naturalized in southern Africa, New Zealand, Alaska, British Columbia, Washington state and Connecticut. Some sources maintain that the species is widespread across North America, but these reports appear to have been based on misidentified specimens. It is found on mud or in fresh waters.
Alisma gramineum is a small aquatic plant in the water-plantain family. It has several common names including narrowleaf water-plantain, ribbonleaf water-plantain or ribbon-leaved water-plantain, and grass-leaved water-plantain. It grows in mud or submerged in shallow fresh or brackish water in marshy areas.
Heteranthera is a genus of aquatic plants in the water hyacinth family, Pontederiaceae, known generally as mud plantains. Species of this genus are native to tropical and subtropical America and Africa. They live in the water or in wet soils. They produce leaves on long petioles and some are cultivated for their attractive flowers. Leaves are of two types - linear and submerged or orbicular and floating. Some species have cleistogamic flowers.
Arnoglossum plantagineum also known as tuberous Indian-plantain, groovestem Indian plantain or Prairie Indian plantain, is a North American species of Arnoglossum in the sunflower family. The Latin specific epithet plantagineum refers to the leaves of the plant which are similar to those of a plantain.
Alisma lanceolatum is a species of aquatic plant in the water plantain family known by the common names lanceleaf water plantain and narrow-leaved water plantain. It is widespread across Europe, North Africa and temperate Asia. It is naturalized in Australia, New Zealand, Oregon, California and British Columbia. It is considered a noxious weed in some places.
Sagittaria montevidensis is a species of flowering plant in the water-plantain family Alismataceae. Common names include giant arrowhead and California arrowhead.
Goodyera pubescens, the downy rattlesnake plantain, is one of the most common orchids native to eastern North America. It is found from Florida to Nova Scotia, west to eastern Oklahoma, Minnesota and Ontario.
Alisma triviale, the northern water plantain, is a perennial semi-aquatic or aquatic plant in the water-plantain family (Alismataceae).
Sagittaria longiloba is a species of flowering plant in the water plantain family known by the common name longbarb arrowhead and Gregg arrowhead. It is native to the south-central and southwestern United States plus Mexico, Venezuela and Nicaragua. It is also reportedly naturalized in the western Himalayas of India and Bhutan. It grows in slow-moving, stagnant, and ephemeral water bodies such as ponds and small streams, and sometimes disturbed and cultivated habitat such as rice fields and irrigation ditches.
Sagittaria sanfordii is an uncommon species of flowering plant in the water plantain family known by the common names valley arrowhead and Sanford's arrowhead. It is endemic to California, where it is known from a few scattered occurrences on the North Coast and in the Central Valley. Many occurrences previously noted in the Central Valley and in southern California have been extirpated as the plant's aquatic habitat has been lost to human activity.
Caltha natans is a species of flowering plant in the buttercup family. It goes by the common name floating marsh marigold.
Arnica lonchophylla is a species of flowering plant in family Asteraceae. The common names for this species includes longleaf arnica, northern arnica, and spear-leaved arnica. It has daisy-like yellow flowers that are 2.5 to 5 cm across with a yellow center disks.
Boechera retrofracta is a species of flowering plant in family Brassicaceae. The common names include reflexed rockcress.
Draba norvegica is a species of flowering plant in the mustard family (Brassicaceae) know by the common names Norwegian draba and Norwegian whitlow grass.
Eleocharis nitida is a species of flowering plant commonly called neat spikerush, it is a member of the sedge family Cyperaceae.
Isoetes melanopoda is a species of nonflowering vascular plant belonging to the quillworts in the family Isoetaceae. Its common names include: black-footed quillwort, midland quillwort, and prairie quillwort.
Juncus marginatus is a species of flowering plant, it is a type of rush with the common names of margined rush and grass-leaf rush.
Carex muehlenbergii is a species of flowering plant, it is a type of sedge. It is a grass-like plant in the family Cyperaceae. Its common names include sand sedge, Muhlenberg's sedge.
Nymphaea tetragona is a species of flowering plant commonly called pigmy waterlily and small white water lily, belonging to the family Nymphaeaceae. In North America and Europe it native range is restricted to the boreal regions above 50° N latitude.
Littorella americana Is a species of flowering plant commonly called American shore plantain. It is a small aquatic plant native to Newfoundland and Nova Scotia to Minnesota.