Senna hebecarpa, with the common names American senna and wild senna, is a species of legume native to eastern North America.
Viburnum nudum is a deciduous shrub in the genus Viburnum within the muskroot family, Adoxaceae.
Cryptogramma is a genus of ferns known commonly as rockbrakes or parsley ferns. They are one of the three genera in the Cryptogrammoideae subfamily of the Pteridaceae. Cryptogramma ferns can be found in temperate regions on several continents worldwide. These ferns have two kinds of leaves which often look so different that at first glance they appear to belong to different plants. The fertile leaves have long, narrow, bumpy segments with undersides covered thickly in sporangia. The edges of the segments may curl back to cover the sporangia, forming a false indusium. The sterile leaves have thinner, wider segments which may be rounded and resemble the leaves of parsley. These ferns grow in rocky areas, often in crevices and cracks.
Minuartia groenlandica, the Greenland stitchwort or mountain stitchwort, Appalachian stitchwort, mountain sandwort, smooth mountain sandwort, and smooth sandwort is a rare perennial which grows low to the ground in clumps linked together at the bottom. It has three to five pairs of leaves in a linear opposite pattern along the length of the slender stem. The main stem breaks into one to thirty cymes which each flower separately. The flowers are white and arise five to ten centimeters above the thick foliage. The white flower petals are six to ten millimeters long. The petals are, in turn, surrounded by five green sepals.
Doellingeria infirma, the cornel-leaf whitetop or cornel-leaved aster, is a perennial forb native to the eastern United States, that produces white composite flowers in late summer.
Sagittaria teres, the quill-leaved arrowhead or slender arrowhead, is an aquatic plant species in the genus Sagittaria native to the northeastern United States: Rhode Island, Massachusetts, New Hampshire, New York and New Jersey.
Carex novae-angliae, the New England sedge, is a Carex species that is native to North America.
Carex polymorpha common names variable sedge and many forms sedge, is a perennial species of Carex native to North America.
Spiranthes tuberosa, commonly called little lady's tresses, little pearl-twist and slender ladies'-tresses is an orchid species. It is a perennial plant native to North America.
Carex schweinitzii, common name Schweinitz's sedge, is a Carex species native to North America. It is a perennial.
Carex sterilis, common names dioecious sedge, sterile sedge and Atlantic sedge, is a perennial plant native to North America.
Trichostema brachiatum, commonly known as fluxweed or false pennyroyal, is a plant endemic to North America.
Linum sulcatum, common names yellow flax, grooved yellow flax, grooved flax, and yellow wild flax is a plant native to the United States and Canada.
Dichanthelium xanthophysum, formerly known as Panicum xanthophysum, common names slender rosette grass, panic grass and slender panic-grass, is a plant found in North America. It is listed as a special concern and believed extirpated in Connecticut. It is listed as endangered in New Jersey and Pennsylvania.
Paspalum laeve common name field paspalum, is a plant found in North America.
Piptatherum pungens, also called Oryzopsis pungens, commonly called slender mountain-ricegrass, ricegrass, northern ricegrass, or slender mountain-rice, is a plant found in North America. It is listed as endangered in Connecticut, Iowa, New Jersey, and Pennsylvania. It is listed as extirpated in Indiana, as a special concern in Rhode Island, and as threatened in Vermont.
Potamogeton gemmiparus, is a species of plant found in North America. It is also known as Potamogeton pusillus var. gemmiparus, common names capillary pondweed, slender pondweed, and budding pondweed. It is listed as threatened in Connecticut and in New Hampshire, as rare in Indiana, and as a special concern in Rhode Island.
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).
Potamogeton vaseyi, common name Vasey's pondweed, is a species of plant found in North America. It is listed as an endangered species in Indiana, Massachusetts, and Pennsylvania, and is listed as threatened in Connecticut, Maine, Michigan, and New Hampshire, and as presumed extirpated in Ohio.
Sporobolus clandestinus, common names rough dropseed and rough rushgrass, is a species of grass found in North America. It is listed as endangered in Connecticut., Maryland, New York (state), and Pennsylvania. It is listed as threatened in Kentucky.
