Flora of Connecticut

Rubus novanglicus is an uncommon North American species of flowering plant in the rose family. It grows in northeastern United States, having been found only in the State of Connecticut. The name "novanglicus" means "New England", referring to the six-state region of which Connecticut is a part. 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. novanglicus may have

Cardamine incisa is a species of flowering plant in the mustard family Brassicaceae.

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

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.

Osmunda × ruggii is a sterile hybrid between Claytosmunda claytoniana and Osmunda spectabilis.

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.

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

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

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.

Sceptridium rugulosum, also known as the ternate grapefern or the St. Lawrence grapefern, is a species of fern. It is an evergreen, perennial species found in the vicinity of the St. Lawrence Seaway.

Desmodium × humifusum is a species of flowering plant in the legume family known by the common names trailing tick-trefoil, eastern trailing tick-trefoil, and spreading tick-trefoil. It is native to the eastern United States, where it has been reduced to scattered populations in the states of Massachusetts, Connecticut, and Indiana. It once had a wider distribution but it has likely been extirpated from Delaware, Maryland, New Jersey, New York, Rhode Island, Virginia, West Virginia, and Missouri. This plant is prostrate, its hairy stems trailing up to 2 metres (7 ft) long. One plant may have

Scutellaria integrifolia, commonly called helmet flower or helmet skullcap, is a flowering plant in the mint family. It is native to the eastern United States where it is found in openings in mesic, acidic soil. It likely requires disturbance in the form of fire to maintain its appropriate habitat. Scutellaria integrifolia is identifiable by its narrow, usually entire leaves and densely pubescent stem. It produces a raceme of large blue-purple flowers in late spring through summer.

Sabatia dodecandra, common names large marsh pink or marsh rose gentian, is a plant in the Gentianaceae family.

Isoetes × eatonii, or Eaton's quillwort, is a hybrid between I. engelmannii and I. tenella. It can be found in ponds and slow moving rivers in Canada or in several New England states. In Canada, it has only been found in the Severn River in Ontario. In the United States, it has been found in Pennsylvania, New Jersey, and New York. It bears 12-100 long yellowish green leaves, each fine, soft, and 8 to 45 centimeters long. The unspotted tan colored sporangium are 12 millimeters long and 5 millimeters wide. The velum covers a sixth to a quarter of the sporangium. The elongated ligule is 3.5

Potamogeton hillii, common name Hill's pondweed, is a species of plant found in North America. It is listed as endangered in Connecticut, Ohio, and Pennsylvania. It is listed as a special concern in Massachusetts and as threatened in Michigan and New York (state). Commonly found in alkaline waters, Hill's pondweed has a narrow distribution from Wisconsin to western New England (Connecticut, Massachusetts and Vermont).

Bidens eatonii (Eaton's 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 (Maine, Massachusetts, Connecticut, New York, New Jersey). Bidens eatonii is an annual herb up to 150 cm (60 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.

Stellaria corei, commonly known as Tennessee chickweed, star chickweed, Tennessee starwort, and Tennessee stitchwort, is a species of flowering plant native to parts of the eastern United States.

Prunus maritima, the beach plum, is a species of plum native to the East Coast of the United States. It is a choice wild edible and its few pests and salt tolerance make it a resilient fruit crop for degraded lands and urban soils.

Crataegus flabellata is a species of hawthorn known by the common name fanleaf hawthorn. It is native to the northeastern United States and adjacent Canada. It is intermediate in appearance between C. macrosperma and C. chrysocarpa. C. macrosperma, which occurs throughout the range of C. flabellata and also in the southeastern U.S., is often misidentified as C. flabellata.

Amaranthus pumilus, the seaside amaranth or seabeach amaranth, is a species of amaranth. This annual plant is now a threatened species, although it was formerly scattered along the eastern coast of the United States, its native range.

Carex schweinitzii, common name Schweinitz's sedge, is a Carex species native to North America. It is a perennial.

Viola brittoniana, known as coast violet, northern coastal violet and Britton's violet, is a rare, acaulescent blue-flowered violet that is endemic to the eastern United States. It has distinctive leaves with narrow lobes and deep sinuses. It is a perennial.

Eriocaulon parkeri is a species of flowering plant in the pipewort family known by the common names Parker's pipewort and estuary pipewort. It is native to eastern North America, where its distribution spans the coast from Quebec to North Carolina. It is extirpated from New York and Pennsylvania, however. This small aquatic monocotyledonous perennial herb produces narrow, linear, grasslike leaves up to about 9 centimeters long and flowering stems up to 30 centimeters tall, but generally reaching 1 to 20 centimeters. The flowering stem, or scape, is about a millimeter wide or less. It is

Rubus recurvicaulis is an uncommon North American species of flowering plant in the rose family. It grows in eastern and central Canada (Ontario, Québec, New Brunswick, Nova Scotia, Newfoundland) and the north-central and northeastern United States (Minnesota, Ohio, Pennsylvania, New Jersey, New York, and the 6 New England states). 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

Euphorbia ipecacuanhae, known by the common names of Carolina ipecac, American ipecac, and ipecac spurge, is a member of the spurge family, Euphorbiaceae. It is a perennial herb, native to the seaboard of the eastern United States, from South Carolina to Long Island. Though it is not closely related to its namesake, Carapichea ipecacuanha, it was often used for the same purpose, with the deep taproot used to create a powerful emetic as a local substitute for imported syrup of ipecac.

Carex barrattii is a species of sedge known as Barratt's sedge. It is endemic to the United States, where it occurs on the Atlantic Coastal Plain from Connecticut south to Georgia and Alabama. It also occurs in the southern Appalachians. This sedge has stems growing 20 to 90 centimeters tall. The leaves are a few millimeters wide and pale blue-green in color. The plant produces dark purple flower spikes, but flowering occurs rarely. The plant reproduces vegetatively via rhizome. This plant grows on wet streambanks and savannas, and in pine barrens. It is not uncommon in the Pine Barrens of

Carex polymorpha common names variable sedge and many forms sedge, is a perennial species of Carex native to North America.

Crataegus scabrida is a species of hawthorn.

Amelanchier nantucketensis, also known as the Nantucket serviceberry or the Nantucket shadbush, produces edible fruit called pomes. Nantucket serviceberry is of conservation concern in the wild. Its distribution extends from Nantucket and Martha's Vineyard to Long Island and Staten Island. There are scattered occurrences in Maryland, Virginia, Maine, and Nova Scotia. This shrub grows 2 to 5 feet tall. It forms colonies by extending stolons. It produces cream-colored flowers and blue fruits. The plant grows in dry, sandy, sunny habitat, including pine barrens and grasslands. The plant is

Sagittaria filiformis, the threadleaf arrowhead, is a perennial aquatic plant growing up to 170 centimetres (67 inches) tall. Some leaves are thread-like, entirely underwater, but others are narrowly ovate or lanceolate and floating on the surface. The species is native to the eastern United States, from Maine south to Florida and Alabama. It occurs in flowing streams in the northern part of its range, but more stagnant waters such as marshes and swamps in the South.