Comptonia peregrina is a species of flowering plant in the family Myricaceae native to eastern North America. It is the only extant (living) species in the genus Comptonia, although a number of extinct species are placed in the genus.
Platanthera leucophaea, commonly known as the prairie white fringed orchid or eastern prairie fringed orchid, is a rare species of orchid native to North America. It is a federally threatened species, protected since October 30, 1989 under the Endangered Species Act of 1973. In Canada, it has been listed endangered under Schedule 1 of the Species at Risk Act since 2005. In 2014, the International Union for Conservation of Nature assessed it as "least concern."
Astragalus canadensis is a common and widespread member of the milkvetch genus in the legume family, known commonly as Canadian milkvetch. The plant is found throughout Canada and the United States in many habitats including wetlands, woodlands, and prairies.
Cerastium glomeratum is a species of flowering plant in the family Caryophyllaceae known by the common names sticky mouse-ear chickweed and clammy chickweed. It is native to Europe, Macaronesia to Assam but is known on most continents as an introduced species. It grows in many types of habitat. The blooming period is February, March, April, and May.
Platanthera blephariglottis, commonly known as the white fringed orchid or white-fringed orchis, is a species of orchid of the genus Platanthera. It is considered to be an endangered species in Connecticut and Ohio, a threatened species in Florida, Maryland and Rhode Island, exploitably vulnerable in New York, and susceptible to be threatened in Québec.
Symphyotrichum lateriflorum is a species of flowering plant in the aster family (Asteraceae). Commonly known as calico aster, starved aster, and white woodland aster, it is native to eastern and central North America. It is a perennial and herbaceous plant that may reach heights up to 120 centimeters and widths up to 30 centimeters.
Callitriche stagnalis is a perennial aquatic vascular plant species. Also known as pond water-starwort, C. stagnalis, may thrive in a variety of aquatic and subaquatic habitats, specially those exhibiting slowly moving to non-moving water. Although C. stagnalis does not pose a threat to humans, its reproductive rate may pose a threat to native vegetation in areas where it has been introduced, as the resulting dense vegetative mats frequently out-compete native species.
Gaylussacia brachycera, commonly known as box huckleberry or box-leaved whortleberry, is a low North American shrub related to the blueberry and the other huckleberries. It is native to the east-central United States.
Xylococcus is a monotypic genus of flowering plants in the heather family which contains the single species Xylococcus bicolor, commonly known as the mission manzanita. It is a burl-forming, evergreen shrub with leathery leaves and smooth dark reddish bark. From December to February, white to pink urn-shaped flowers adorn the foliage, often attracting hummingbird pollinators. It is native to southern California and the Baja California Peninsula, south to the Sierra de la Giganta. There is growing concern over the future of this plant, referred to as the "queen of the elfin forest, " as it may possibly lose up to 88% of its habitat and its wild seedlings are failing to survive more than a full year.
Symphyotrichum pilosum is a perennial, herbaceous, flowering plant in the Asteraceae family native to central and eastern North America. It is commonly called hairy white oldfield aster, frost aster, white heath aster, heath aster, hairy aster, common old field aster, old field aster, awl aster, nailrod, and steelweed. There are two varieties: Symphyotrichumpilosum var.pilosum, known by the common names previously listed, and Symphyotrichumpilosum var.pringlei, known as Pringle's aster. Both varieties are conservationally secure globally and in most provinces and states where they are native.
Hypericum mutilum is a species of St. John's wort known by the common name dwarf St. John's wort. It is native to parts of North America and is present in other parts as an introduced species. It is an annual or perennial herb taking a multibranched erect form up to about 60 centimeters tall. The oval green leaves are one or two centimeters long and are covered in tiny glands. The inflorescence is a compound cyme of tiny flowers. H. mutilum subsp. mutilum and subsp. boreale have a diploid number of 16, and H. mutilum subsp. boreale can have a diploid number of 18.
Wahlenbergia gracilis, commonly known as Australian bluebell or sprawling bluebell is a perennial tufted herb from the family Campanulaceae. The species is widespread throughout eastern Australia, with a range from Cape York to southern Tasmania. The species is not considered at risk.
Enemion biternatum, commonly known as the false rue-anemone, is a spring ephemeral native to moist deciduous woodland in the eastern United States and extreme southern Ontario.
Toxicoscordion paniculatum is a species of flowering plant known by the common names foothill deathcamas, panicled death-camas, and sand-corn. It is widely distributed across much of the western United States, especially in the mountains and deserts of the Great Basin region west of the Rocky Mountains. It grows in many types of habitats, including sagebrush plateau, grasslands, forests, and woodlands.
Hemianthus callitrichoides is a semi-aquatic plant in the family Linderniaceae. The plant is endemic to West Indies, where it is native to the islands of The Bahamas, Cuba, Hispaniola, Jamaica, and Puerto Rico. In The Bahamas, this species known as "water-starwort".
Camassia howellii, commonly known as Howell's camas, is a species of perennial flowering plant in the family Asparagaceae endemic to western Oregon.
Balduina uniflora, commonly called oneflower honeycombhead, savannah honeycombhead or oneflower balduina, is a North American species of plants in the sunflower family. It is native to the southeastern United States. It is the type species of the genus Balduina.
Asclepias hirtella, commonly called the tall green milkweed, is a species of flowering plant in the milkweed genus and dogbane family (Apocynaceae). It is native to Canada and the United States, where its range is concentrated in the Midwest and Upper South.
Borodinia dentata, commonly called Short's rockcress, is a species of flowering plant in the mustard family (Brassicaceae). It is native to the eastern North America, where it is found in Canada and the United States. In the United States, its range is primarily centered in the Midwest, and in Canada it is only known from Ontario. Its natural habitat is in nutrient-rich alluvial forests and loamy bluffs, often on calcareous substrate.
Townsendia grandiflora, commonly called largeflower ground-daisy, largeflower townsendia, or showy townsendia is an inconspcious plant of the foothills of the Rocky Mountains and nearby shortgrass prairies. They are usually found in somewhat eroded or rocky areas such as the sides of hills, banks, and mesas. They are part of the Townsendia genus, which can be difficult for both amateur and expert botanists to correctly identify. A short-lived plant, they are nonetheless grown by rock garden enthusiasts for their relatively large daisy-like flowers.
