| Littorella americana | |
|---|---|
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| Littorella americana line drawing | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Lamiales |
| Family: | Plantaginaceae |
| Genus: | Littorella |
| Species: | L. americana |
| Binomial name | |
| Littorella americana Fernald [1] | |
| Synonyms [2] | |
| |
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.
Littorella americana Is a monoecious (having separate male and female flowers on the same plant) perennial growing from thin annual stolons and rhizomes. The leaves are stiff with an arching habit, they are rounded in cross section. The flowers are wind pollinated (anemophilous). Plants have a single, staminate flower, produced on top of a bare pedicel (stems that hold flowers) up to 4.0 cm (1.6 in.) long. [3] The staminate flower has four sepals and four anthers which have long thin filaments. [4] The sessile, pistillate flowers are produced around the base of the plant, they have long stigmatic styles. Flowering occurs when the plants are exposed by low water levels. [3] The unilocular ovaries produce small nuts, but clonal plants rarely produce fruits, apparently being self incompatible. [3]
Littorella americana grows in shallow water along the margins of oligotrophic lakes with sandy or gravelly bottoms. [4] It can form dense mats by way of spreading rhizomes. Water depths of 20 to 60cm are preferred but it is also found above the water line on sandy beaches. It is found growing in clear and dark watered lakes and in permanent ponds. [3]
Littorella americana is native to the US states of Maine, Michigan, Minnesota, New Hampshire, New York, Vermont, and Wisconsin; it is also found in the Canadian provinces of Newfoundland, Nova Scotia, Ontario, Québec, and New Brunswick.
The Alismatales (alismatids) are an order of flowering plants including about 4,500 species. Plants assigned to this order are mostly tropical or aquatic. Some grow in fresh water, some in marine habitats. Perhaps the most important food crop in the order is the corm of the taro plant, Colocasia esculenta.
Cladium is a genus of large sedges, with a nearly worldwide distribution in tropical and temperate regions. These are plants characterized by long, narrow (grass-like) leaves having sharp, often serrated (sawtooth-like) margins, and flowering stems 1–3 m tall bearing a much-branched inflorescence. Like many plants found in wet habitats, it has deeply buried rhizomes that can produce tall shoots with dense canopies.
Clintonia is a genus of flowering plants in the lily family Liliaceae. Plants of the genus are distributed across the temperate regions of North America and eastern Asia, in the mesic understory of deciduous or coniferous forests. The genus, first described by Constantine Samuel Rafinesque in 1818, was named for DeWitt Clinton (1769–1828), a naturalist and politician from the U.S. state of New York. For this reason, plants of the genus are commonly known as Clinton's lily. The common name bluebead refer to the distinctive fruit of members of the genus. Since fruit color varies somewhat across species, the common name bead lily is used as well.
Comptonia peregrina is a species of flowering plant in the family Myricaceae native to eastern North America. It is the only extant (living) species in the genus Comptonia, although a number of extinct species are placed in the genus.
Maianthemum canadense is an understory perennial flowering plant, native to Canada and the northeastern United States, from Yukon and British Columbia east to Newfoundland, into St. Pierre and Miquelon. It can be found growing in both coniferous and deciduous forests. The plant appears in two forms, either as a single leaf rising from the ground with no fruiting structures or as a flowering/fruiting stem with two to three leaves. Flowering shoots have clusters of 12–25 starry-shaped, white flowers held above the leaves.
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.
Symphyotrichum pilosum is a perennial, herbaceous, flowering plant in the Asteraceae family native to central and eastern North America. It is commonly called hairy white oldfield aster, frost aster, white heath aster, heath aster, hairy aster, common old field aster, old field aster, awl aster, nailrod, and steelweed. There are two varieties: Symphyotrichumpilosum var.pilosum, known by the common names previously listed, and Symphyotrichumpilosum var.pringlei, known as Pringle's aster. Both varieties are conservationally secure globally and in most provinces and states where they are native.
Cypripedium reginae, known as the showy lady's slipper, pink-and-white lady's-slipper, or the queen's lady's-slipper, is a rare lady's-slipper orchid native to northern North America. Although never common, this plant has vanished from much of its historical range due to habitat loss. It is the state flower of Minnesota.
Hypericum mutilum is a species of St. John's wort known by the common name dwarf St. John's wort. It is native to parts of North America and is present in other parts as an introduced species. It is an annual or perennial herb taking a multibranched erect form up to about 60 centimeters tall. The oval green leaves are one or two centimeters long and are covered in tiny glands. The inflorescence is a compound cyme of tiny flowers. H. mutilum subsp. mutilum and subsp. boreale have a diploid number of 16, and H. mutilum subsp. boreale can have a diploid number of 18.
Alnus serrulata, the hazel alder or smooth alder, is a thicket-forming shrub in the family Betulaceae. It is native to eastern North America and can be found from western Nova Scotia and southern New Brunswick south to Florida and Texas.
Baldellia ranunculoides, the lesser water-plantain, is a species of flowering plant in the family Alismataceae.
Lophiola is a genus of monocotyledonous flowering plants native to eastern North America. It has variously been placed in the Liliaceae, the Haemodoraceae, the Tecophilaeaceae or the Nartheciaceae.
Najas gracillima, the slender waternymph, is a submerged species of aquatic plant in the Hydrocharitaceae family. found in lakes and streams. It is native to China, Russian Far East, Japan, Korea, Taiwan, Iran, Alberta, Ontario, Newfoundland, Nova Scotia, New Brunswick, the eastern United States. It is also considered introduced and naturalized in France, Spain, Italy and California.
Sagittaria graminea, the grassy arrowhead or grass-leaved arrowhead, is an aquatic plant species native to eastern North America.
Carex eburnea, known as ivory sedge, ebony sedge, and bristleleaf or bristle-leaved sedge, is a small and slender sedge native to North America, from Alaska and Newfoundland south to central Mexico.
Antennaria parlinii is a North American species of flowering plants in the family Asteraceae known by the common name Parlin's pussytoes. It is widespread across eastern and central Canada and eastern and central United States, from Manitoba to Nova Scotia south as far as Texas and Georgia.
Triadenum fraseri, commonly known as bog St. John's wort, Fraser's St. John's wort, and Fraser's marsh St. John's wort, is a perennial flowering plant in the family Hypericaceae that grows in wetlands of Canada and the northern United States. It is named after John Fraser (1750–1811), a Scottish botanist and widely travelled plant collector.
Hypericum canadense, known as Canadian St. Johns-wort, lesser St. John's wort, and lesser Canadian St. Johnswort, is a flowering plant in the genus Hypericum. It is a yellow-flowering annual or perennial herb native to North America and introduced to Ireland and The Netherlands. The specific epithet canadense means "Canadian".
Andersonglossum boreale, known as northern wild comfrey or just wild comfrey, is a species of flowering plant in the borage family, Boraginaceae. It is native to boreal coniferous and mixed forests in North America, from Nova Scotia to British Columbia and Yukon in Canada, south to New Jersey and Indiana in the United States. It is often found in rocky or sandy soils. It is extirpated from many of the southern parts of its range.
Eleocharis nitida is a species of flowering plant commonly called neat spikerush, it is a member of the sedge family Cyperaceae.
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