Flora of New York

Platanthera pallida, commonly known as pale fringed orchid, is a rare orchid of North America with the only known occurrences on Long Island. Locally, some enthusiasts prefer the alternative common name Long Island orchid.

Amelanchier × lamarckii, also called juneberry, serviceberry or shadbush, is a large deciduous flowering shrub or small tree in the family Rosaceae.

Aconitum noveboracense, also known as northern blue monkshood or northern wild monkshood, is a flowering plant belonging to the buttercup family (Ranunculaceae). Members of its genus (Aconitum) are also known as wolfsbane. A. noveboracense is listed as a threatened species by the United States Fish and Wildlife Service. The species can only be found in Iowa, Wisconsin, Ohio, and New York, and populations have been in decline since the 1980s. A narrow set of environmental conditions for growth limit the plant to these areas, so a species recovery plan has been set in place to preserve the

Crocanthemum dumosum, common known as bushy frostweed and bushy rockrose, is a perennial plant that is native to the United States.

Solidago houghtonii is a rare North American species of flowering plant in the family Asteraceae known as Houghton's goldenrod. It is native to southern Ontario, Canada and the northern United States (Michigan and New York). It is threatened by the loss and degradation of its habitat. It is a federally listed threatened species of the United States and it is designated a species of special concern by Canada's Committee on the Status of Endangered Wildlife in Canada.

Nabalus boottii, commonly known as alpine rattlesnake root or Boott's rattlesnake root, is a species of alpine perennial plant in the family Asteraceae endemic to the northeastern United States. The specific epithet boottii is named after the Bostonian botanist John Wright Boott, who first collected the plant in the White Mountains of New Hampshire in 1829.

Helianthus ambiguus is a North American species of sunflower known by the common name ambiguous sunflower. It is found only in the Great Lakes region of the United States, the states of New York, Michigan, Ohio, and Wisconsin.

Amelanchier sanguinea, known as red-twigged shadbush or roundleaf serviceberry, is a shrub native to eastern and central North America. Its native range stretches from New Brunswick to Saskatchewan south as far as northern Georgia. It is most common in eastern Canada, the northeastern United States, and the Great Lakes region. Amelanchier sanguinea is a shrub that can grow up to 3 metres (9.8 ft) tall, and has edible sweet-flavored fruits that are red when young and become purple or dark-blue when they ripen. Like all Amelanchier fruit, these resemble berries, but are technically pomes.

Acer × freemanii, Freeman's maple or Freeman maple, is a naturally occurring hybrid maple that is the result of a cross between Acer rubrum (red maple) and Acer saccharinum (silver maple). Wild specimens are found in eastern North America where the parent species overlap. The species is named after Oliver M. Freeman of the U.S. National Arboretum who hybridized A. rubrum with A. saccharinum in 1933. The fall foliage is a striking orange-red. It has many commercially available cultivars and is frequently used as a street tree.

Sagittaria teres, the quill-leaved arrowhead or slender arrowhead, is an aquatic plant species in the genus Sagittaria. It is a perennial herb up to 80 centimetres (31 inches) tall. The leaves can grow both under and above the water. The flowers are white, up to 1.5 cm (1⁄2 in) in diameter, borne in one or more whorls on a stalk rising above the leaves. It is native to the northeastern United States: Rhode Island (Providence and Washington Counties), Massachusetts, New Hampshire (Hillsborough County), New York (Suffolk County) and New Jersey. It grows along the shores of lakes, marshes, and

Pyxidanthera barbulata, the flowering pixiemoss, is a species of flowering plant in the family Diapensiaceae. It is native to the eastern United States, occurring on the coast from Long Island to New Jersey and Virginia to South Carolina. Pyxidanthera barbulata is not a moss. It is a low subshrub producing a mat on the ground. It grows from a rhizome and the stems root at intervals where they meet the ground. The crowded leaves are lance-shaped and no more than a centimeter long. The flowers have pink sepals and white petals up to about half a centimeter long. This plant grows in dry, sandy

Pyxidanthera is a genus of flowering plant in the family Diapensiaceae. Though often recognized as two species, Pyxidanthera barbulata and Pyxidanthera brevifolia, these designations are not genetically or morphologically distinct. Furthermore, these two designated species were found to not be reciprocally monophyletic. Despite these findings, some flora still recognize these two species based on their range, habitat, and leaf morphology (size and pubescence). However, these leaf morphology differences are directly related to habitat and moisture. Despite the species designations being based

Bidens bidentoides (formerly Diodonta bidentoides), commonly called swamp beggar's-ticks and delmarva beggarticks, is an annual, herbaceous, flowering plant in the Asteraceae family. It is native to the northeastern and east-central parts of the United States, the coastal plain of the States of Maryland, Delaware, Pennsylvania, and New Jersey plus the region around the Hudson River estuary in New York.

Solidago leiocarpa, common name Cutler's alpine goldenrod, is a plant species native to mountainous portions of Québec, northern New England, and northern New York State. It is generally found at elevations over 800 m (2400 feet). Solidago leiocarpa is closely related to the more widespread S. multiradiata, distinguished by the shape of the phyllaries surrounding the flower heads. Solidago leiocarpais a perennial herb up to 35 cm (14 inches) tall. One plant can have as many as 160 small yellow flower heads in a flat-topped or conical array.

Pityopsis falcata, commonly known as sickleleaf silkgrass, sickle-leaved golden aster, and New England Golden aster, is perennial plant in the family Asteraceae native to the northeastern Atlantic Coastal Plain of the United States.

Spiranthes bightensis, the Atlantic ladies tresses, is a terrestrial orchid native to coasts of the north-eastern United States.

Trollius laxus is a rare flowering plant species in the buttercup family, Ranunculaceae. It is native to North America and is considered to have two subspecies, one with a distribution is the east and one in the west. Common names for Trollius laxus include American globeflower and American spreading globeflower. The American Globeflower, Trollius laxus is an endangered species of flowering plants Native to Northeastern United States. This species of plants is limited in range by their ability to exclusively survive in wetlands and marshes. Thus, clusters of the species are constantly

Artemisia serrata is a North American species in the sunflower family, with the common name serrate-leaved sage or saw-tooth wormwood. It is native to the north-central part of the United States (Iowa, Illinois, Michigan, Wisconsin, Minnesota, North Dakota, with isolated populations in New York State).

Potamogeton ogdenii, common name Ogden's pondweed, is a perennial plant native to North America.

Asarum shuttleworthii, commonly known as Shuttleworth's ginger or the largeflower heartleaf, is a perennial wildflower in the family Aristolochiaceae. It is native to the southeastern United States, primarily found in the Appalachian foothills of Alabama, Georgia, Tennessee, South Carolina, and North Carolina. It is notable for its large, urceolate (urn-shaped) flowers, which emerge under the leaves directly from the rhizome.

Spiranthes × kapnosperia, the smoky ladies' tresses, is a species of orchid growing in the Eastern United States. This species is documented in New York (state), Ohio, Illinois, Tennessee, North Carolina, and South Carolina.

Crataegus persimilis is a species of hawthorn, known by the common names plumleaf hawthorn and broad-leaved cockspur thorn, native to southern Ontario, Canada, and the US states of New York, Pennsylvania, Ohio, Kentucky, West Virginia, and Virginia. It is widely cultivated, particularly in Europe, as an ornamental. Its sporadic distribution in its natural range and certain of its morphological characters leads authorities to consider it a probable naturally occurring hybrid, with its most likely parents being Crataegus succulenta (fleshy hawthorn) and Crataegus crus-galli (cockspur hawthorn).

Crataegus pennsylvanica, known as the Pennsylvania thorn, is a species of hawthorn native to Delaware, New York, North Carolina, Ontario, Ohio, and Pennsylvania, that grows to about 8 m in height. The mature trees have few thorns. This species has often been confounded with C. mollis, but the two species have separate native ranges except for an area of overlap in northeastern Ohio.

Micranthemum micranthemoides (syn. Hemianthus micranthemoides), commonly known as Nuttall's mudflower is an extinct species of subaquatic Micranthemum that previously inhabited wet areas from Virginia to New York. It is commonly misidentified as a similar species, Micranthemum glomeratum, in aquascaping.

Muhlenbergia torreyana is a species of grass known by the common names New Jersey muhly, Torrey's muhly, pinebarren smokegrass, and Torrey's dropseed. It is native to the eastern United States, where today it occurs in Maryland, New Jersey, North Carolina, and Tennessee. It has been extirpated from Delaware, Georgia, and New York. This rhizomatous perennial grass produces compressed, blue-green stems up to 75 centimeters tall. The stiff, sharp-pointed leaves are up to 20 centimeters in length. The inflorescence is a cylindrical panicle of tiny purple flowers. Flowering occurs in August

Solidago ohioensis is a North American plant species in the family Asteraceae, called the Ohio goldenrod. It is found primarily in the Great Lakes region of Canada and the United States, in Ontario, New York, Ohio, Michigan, Wisconsin, Indiana, and Illinois. Solidago ohioensis is a perennial herb up to 100 cm (39 inches) tall. The leaves are narrow, up to 25 cm (10 inches) long. One plant can produce as many as 500 small yellow flower heads in a compact branching array at the top of the plant. The plant grows in marshes, on sand dunes, and along the banks of rivers.

Lysimachia × commixta is a hybrid of flowering plant in the primrose family Primulaceae. It is native to eastern North America, from eastern Canada across the Great Lakes region west to Minnesota. The hybrid specific epithet commixta means "mixed together, mixed up", which presumably refers to the genetic mixing of two species. Indeed, the hybrid is sometimes referred to as the mixed loosestrife or the commingling loosestrife.

Sanguisorba annua is a species of flowering plant in the rose family known by the common names annual burnet and prairie burnet. It is native to North America, including many areas in western and central Canada and the United States. It can be found in several types of habitat, including grassland, sagebrush, and disturbed areas. It is an annual or biennial herb producing a leafy, mostly erect stem up to about 90 centimeters in maximum height. The leaves are composed of several pairs of leaflets, each leaflet oval in shape and usually divided into lobes, sometimes deeply, the lobes becoming

Kalmia buxifolia is a species of flowering plant in the family Ericaceae known by the common name sandmyrtle, or sand-myrtle. It is native to the mid-Atlantic and southeastern United States, where it has a disjunct distribution, occurring in three separate areas. It is known from the Pine Barrens of New Jersey, the Coastal Plain of the Carolinas, and the southeastern Blue Ridge Mountains. This species is sometimes called Leiophyllum buxifolium, the only member of the monotypic genus Leiophyllum. Genetic analysis supports its inclusion in genus Kalmia. This species is quite variable in

Scirpus longii is a species of flowering plant in the sedge family known by the common name Long's bulrush. It is native to eastern North America, where it is limited to the Atlantic coastal plain. This perennial plant grows from a large rhizome and forms clumps of stems up to 1.5 meters tall. It flowers rarely, any time between May and August. The inflorescence is an open cyme of spikelets up to about a centimeter long. This species grows in wetlands such as river banks and bogs.