Flora of Eastern Canada

Carex × abitibiana is a hybrid species of sedge that was first described by Lepage in 1959. It is native to Quebec.

Braya longii, common name Long's Braya or Long's northern rockcress, is a small, herbaceous, arctic-alpine flowering plant that grows only in the cool, wet and windy climate of the coastal limestone barrens of northern Newfoundland. It is a narrow endemic, found in only five populations within a range of 6 km, and in one isolated population 14 km to the south, all in the Strait of Belle Isle ecoregion on the extreme northwest portion of the Great Northern Peninsula of Newfoundland.

Salix jejuna, also scientifically referred to a Salix jejuna Fernald, and commonly known as the Barrens Willow, Calcerous Mat Willow, and Saule des landes (FR) is a dwarf shrub belonging to the willow family (Salix).

Boechera quebecensis, commonly known as the Quebec rockcress, is a critically imperiled herbaceous biennial or short-lived perennial flowering plant in the Brassicaceae family. It is endemic to limestone cliffs and escarpments of the Gaspé Peninsula in eastern Quebec, Canada.

Salix chlorolepis, also known as the green-scaled willow, is a species of willow. It is endemic to Mount Albert and its surroundings in Quebec, Canada. It is listed as critically imperiled by NatureServe.

Rubus flavinanus is a rare North American species of flowering plant in the rose family. It has been found only in the eastern United States primarily in the Appalachian Mountains of eastern West Virginia and western Maryland, but with a few populations in southern Vermont. The genetics of Rubus is extremely complex, so that it is difficult to decide on which groups should be recognized as species. There are many rare species with limited ranges such as this. Further study is suggested to clarify the taxonomy. Some studies have suggested that R. flavinanus may have originated as a hybrid

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

Pedicularis furbishiae, or Furbish's lousewort, is a perennial herb found only on the shores of the upper Saint John River in Maine and New Brunswick. Furbish's lousewort was first recognized as a new species by Maine naturalist and botanical artist Kate Furbish (who named it Furbish's wood betony) in 1880. It is considered an endangered species in the United States and Canada, and is threatened by habitat destruction, as well as riverside development, forestry, littering and recreational use of the riverbank. It was formerly in the family Scrophulariaceae, but is now placed in the family

Iris × robusta, called the Windermere iris, is a hybrid species of flowering plant in the family Iridaceae. Its parents are Iris versicolor and Iris virginica, both of which are native to North America. Wild populations have been found in Michigan and Ontario, and it has been introduced into Great Britain. It is a rhizomatous perennial, characterised by its violet-blue flowers and purple-flushed foliage. It has a number of cultivars, including 'Gerald Darby', 'Mountain Brook', 'Purple Fan' and 'Nutfield Blue'. Its cultivar 'Dark Aura' has gained the Royal Horticultural Society's Award of

Geum peckii, commonly known as mountain avens, Eastern mountain avens, Peck's avens, or Benoîte de Peck in French, is a species of herbaceous, perennial flowering plant in the rose family. It is native to eastern North America, where it is known from only two locations, the White Mountains of New Hampshire and three sites in Nova Scotia. It is named after the American naturalist William Dandridge Peck, who first collected the plant on Mount Washington in 1804.

Carex waponahkikensis, commonly known as the Dawn-land sedge, is a species of sedge first described by M. Lovit and A. Haines in 2012. It is native to a small range in the state of Maine as well as in adjacent parts of coastal New Brunswick.

Adiantum viridimontanum, commonly known as Green Mountain maidenhair fern, is a fern found only in outcrops of serpentine rock in New England and Eastern Canada. The leaf blade is cut into finger-like segments, themselves once-divided, which are borne on the outer side of a curved, dark, glossy rachis. These finger-like segments are not individual leaves, but parts of a single compound leaf. The "fingers" may be drooping or erect, depending on whether the individual fern grows in shade or sunlight. Spores are borne under false indusia at the edge of the subdivisions of the leaf, a

Crataegus jonesiae is a species of hawthorn native to New England and Canada. It is named in honor of landscape architect Beatrix Jones Farrand, who first noticed it and brought it to Charles Sprague Sargent's attention.

Iris lacustris, the dwarf lake iris, is a plant species in the genus Iris, subgenus Limniris and in the section Lophiris (crested irises). It is a rhizomatous, beardless perennial plant, native to the Great Lakes region of eastern North America. It has lavender blue or violet-blue flowers, a very short stem and long fan-like green leaves. It is cultivated as an ornamental plant in temperate regions. It is closely related to Iris cristata (another North American crested iris).

Ranunculus allenii, commonly known as Allen's buttercup, is a flowering plant in the crowfoot or buttercup family, Ranunculaceae. Generally found in wetlands in northern latitudes, it bears yellow flowers in summer, which are pollinated by insects.

Symphyotrichum laurentianum (formerly Aster laurentianus) is a critically imperiled species of flowering plant in the family Asteraceae endemic to the southern shores of the Gulf of St. Lawrence in Canada. Commonly known as Gulf of St. Lawrence aster, it is an annual, herbaceous plant with one stem and no ray florets that grows up to about 13 centimetres (5 inches) tall.

Symphyotrichum anticostense (formerly Aster anticostensis) is a species of flowering plant in the family Asteraceae with the common name of Anticosti aster. It is endemic to Quebec, New Brunswick, and Maine. S. anticostense is a perennial, herbaceous plant that may reach 10 to 90 centimeters (4 to 35 inches) in height. Its flowers have pale purple or lilac, sometimes white, ray florets and yellow, then reddish purple, disk florets.

Agalinis neoscotica, commonly known as Nova Scotia false foxglove, is a species of false foxglove. It is found in southwestern Nova Scotia along the coastal plain and neighbouring islands and in the southeastern portion of Maine.

Tetraneuris herbacea is a rare species of flowering plant in the aster family known by the common names eastern fournerved daisy, lakeside daisy, fournerved starflower, and Manitoulin gold. It is native to and endemic to the Great Lakes region in North America, where it is present in Ontario, Ohio, Michigan, and Illinois. It is threatened by habitat destruction and degradation by several forces, including limestone quarrying, recreational activity, fire suppression, and construction. It is a federally listed threatened species of the United States and of Canada.

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.

Taraxacum latilobum, also known as the large-lobed dandelion, is a species of dandelion found in eastern North America native to Maine, Newfoundland, and Quebec. The roots and leaves were part of the traditional plant foods of Canadian indigenous peoples. Along with the St. Lawrence dandelion (Taraxacum laurentianum), Taraxacum latilobum has been found in the Mingan Archipelago, a biodiversity hotspot in Quebec.

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.

Carex juniperorum, the juniper sedge, is a perennial flowering plant native to North America, first described by botanist William J. Crins in 1993. C. juniperorum is in the Cyperaceae (sedge) family, and is closely related to C. jamesii and C. willdenowii. It is commonly called juniper sedge as it is often seen growing in areas with red cedar (Juniperus virginiana), though the presence of cedar is not necessarily a requirement for it to grow.

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.

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.

Bidens heterodoxa, the Connecticut beggarticks, is a North American species of flowering plant in the family Asteraceae. It is native to eastern Canada (Québec, New Brunswick, Prince Edward Island) and the northeastern United States (Connecticut). Bidens heterodoxa is an annual herb up to 50 cm (20 inches) tall. It produces as many as 3 flower heads containing yellow disc florets but usually no ray florets (occasionally 1, 2, or 3). The species grows mostly along the banks of estuaries and coastal salt marshes.

× Sorbaronia is a hybrid genus of flowering plants belonging to the family Rosaceae. The hybrids are between species of Sorbus and Aronia. It is native to Eastern Canada. In addition, × Sorbaronia fallax has been created artificially.

Festuca frederikseniae, also known as North Atlantic fescue or Frederksen's fescue, is a species of grass native to Greenland, Newfoundland, Labrador, and to a few islands in eastern Québec (Mingan Archipelago and Anticosti Island). In Iceland and southern Greenland, a few populations have been found that may be hybrids between F. rubra and either F. frederikseniae or F. vivipara. The purported hybrids have been named F. x villosa-vivipara. All these species grow on cliffs and on rocky or sandy soils in alpine tundra. It was first described in 1985.

Betula michauxii, the Newfoundland dwarf birch, is a species of birch which is native to Newfoundland, Nova Scotia and Quebec as well as Saint Pierre and Miquelon. It is a perennial herb.

Cirsium pitcheri, sometimes called Pitcher's thistle or dune thistle, is a species of thistle native to sand dune shorelines along the upper Great Lakes. It is native to Indiana, Illinois, Michigan, Wisconsin, and Ontario. It is listed by the U.S. Fish and Wildlife Service as a threatened species.