Flora of Vermont

Potentilla robbinsiana, the dwarf mountain cinquefoil or Robbins' cinquefoil, is a small yellow-flowered perennial growing exclusively above the tree line in the White Mountains of New Hampshire. It is nearly stemless and measures two to four centimeters in diameter.

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.

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

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.

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.

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

Stachys clingmanii, or Clingman's hedgenettle, is a North American species of plant in the mint family. It is found at higher elevations in the Great Smoky Mountains of Tennessee and the Carolinas, with additional populations in Illinois, Indiana, and Vermont. It is a threatened species in Tennessee. Stachys clingmanii is an erect branching herb up to 90 cm (3 feet) tall. It blooms in summer, producing flowers up to 1.5 cm (0.6 inches) long.

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

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.

Gilia capitata is a species of flowering plant in the phlox family known by the common names blue-thimble-flower, bluehead gilia, blue field gilia, and globe gilia.

Napaea is a monotypic genus of flowering plants in the mallow family Malvaceae. The single species is Napaea dioica, a tall perennial herbaceous plant, native to central and eastern USA. Plants are occasionally grown as ornamentals in wildflower gardens. A common name is glade mallow.

Rubus permixtus is a North American species of dewberry in the genus Rubus, a member of the rose family. It grows in scattered locations in the north-central and northeastern United States, from Maine south as far as West Virginia plus Michigan and Wisconsin. Nowhere is it very common. Rubus permixtus is a nearly prostrate shrub that runs along the ground as much as 6 feet (180 cm), with vertical stems arising from those on the ground. Fruits are generally black, sweet, and edible.

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.

Rubus biformispinus, the pasture dewberry, is an uncommon North American species of flowering plant in the rose family. It is found in eastern and central Canada (from Ontario to Nova Scotia) and the northeastern United States (Maine, New York, Pennsylvania). The epithet biformispinus means "with spines of two shapes," referring to the two distinct sizes of prickles on the stems. 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

Scirpus ancistrochaetus is a rare species of flowering plant in the sedge family known by the common names barbedbristle bulrush and northeastern bulrush. It is native to the northeastern United States from New Hampshire south to Virginia. It used to be found in Quebec but it is now thought to be extirpated there. It was also believed extirpated from the state of New York, but at least one population has been rediscovered in Steuben County in 2010. It is threatened by the loss and degradation of its wetland habitat. It is a federally listed endangered species. This bulrush produces clumps of

Polemonium vanbruntiae is a species of flowering plant in the phlox family Polemoniaceae. It is known by the common names Appalachian Jacob's ladder, bog Jacob's-ladder, and Vanbrunt's polemonium. It is native to eastern Canada and the northeastern United States.

Crataegus brainerdii is a species of flowering plant in the rose family known by the common name Brainerd's hawthorn. It is named for Ezra Brainerd (1844–1924), a renowned botanist and former president of Middlebury College, in Vermont. It is native to eastern North America, including eastern Canada and the eastern United States. This species is a shrub or small tree growing up to 30 feet tall. The branches are lined with thorns up to 1.6 inches long. The serrated leaves are somewhat triangular in shape and sometimes slightly lobed. They are hairy when new. The flowers are borne in clusters.

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).

Paronychia argyrocoma, the silvery nailwort or silverling, is a plant species native to the eastern United States. It has a disjunct distribution, found in New England (Maine, New Hampshire, Vermont and Massachusetts) and the Appalachian Mountains of the Southeast (Georgia, Tennessee, Kentucky, North Carolina, Virginia, West Virginia and Maryland) but not from New York, New Jersey or Pennsylvania in between. The species grows on rocky sites at elevations of 200–1800 m. Paronychia argyrocoma is a perennial herb with a woody caudex, forming mats covering significant areas of ground. Stems are

Vaccinium boreale, common name northern blueberry, sweet hurts, or bleuet boréal (in French), is a plant species native to North America.

Polystichum × potteri, known as Potter's holly fern, is a hybrid between Polystichum braunii and Polystichum acrostichoides. It is named for Henry Potter, a Vermont farmer and botanist.

Chenopodium foggii, commonly known as Fogg's goosefoot, is a species of annual herb found throughout eastern North America and particularly New England.

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.

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

Spiranthes casei, or Case's lady's tresses, is a species of orchid native to the northeastern United States and Canada.

Betula minor, the dwarf white birch, is a species of birch which can be found in Eastern Canada and in such US states as Maine, New Hampshire, and New York.

Rubus trifrons is a rare North American species of flowering plant in the rose family. It has been found only in eastern Canada (Québec and Nova Scotia) and the northeastern United States (New York, New Hampshire, 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. trifrons may have originated as a hybrid between R. setosus and R. hispidus.