Pyrola is a genus of evergreen herbaceous plants in the family Ericaceae. Under the old Cronquist system it was placed in its own family Pyrolaceae, but genetic research showed it belonged in the family Ericaceae. The species are commonly known as wintergreen, a name shared with several other related and unrelated plants. They are native to northern temperate and Arctic regions.
Maianthemum canadense is an understory perennial flowering plant, native to Canada and the north-eastern United States, from Yukon and British Columbia east to Newfoundland, into St. Pierre and Miquelon. It can be found growing in both coniferous and deciduous forests. The plant appears in two forms, either as a single leaf rising from the ground with no fruiting structures or as a flowering/fruiting stem with 2-3 leaves. Flowering shoots have clusters of 12–25 starry-shaped, white flowers held above the leaves.
Anemonoides quinquefolia, a flowering plant in the buttercup family Ranunculaceae, is native to North America. It is commonly called wood anemone or windflower, not to be confused with Anemonoides nemorosa, a closely related European species also known by these common names. The specific epithet quinquefolia means "five-leaved", which is a misnomer since each leaf has just three leaflets. A plant typically has a single, small white flower with 5 sepals.
Arnoglossum atriplicifolium, the pale Indian plantain, is a perennial herbaceous wildflower in the sunflower family (Asteraceae). native to the central and eastern United States. It can reach heights of up to 3 metres (10 ft), with dramatic clusters of white flowers at the top of a central, unbranching stalk.
Cephalanthera longifolia, the narrow-leaved helleborine, sword-leaved helleborine or long-leaved helleborine, is a rhizomatous herbaceous perennial plant in the family Orchidaceae. It is native to light woodland, and widespread across Europe, Asia and North Africa from Ireland and Morocco to China. This includes the United Kingdom, Iran, Russia, Kazakhstan, Turkey, Algeria, India, Pakistan, Germany, Italy, France, Spain, Portugal and many other countries.
Packera obovata, commonly known as roundleaf ragwort, spoon-leaved ragwort, roundleaf groundsel, or squaw-weed, is an erect perennial herb in the Asteraceae (aster) family native to eastern North America. It was previously called Senecio obovatus. Basal and lower leaves are obovate with toothed margins, while upper leaves are pinnately divided. The ray flowers are yellow and the disk flowers orange-yellow, the inflorescences being held well above the foliage.
Eurybia macrophylla, commonly known as the bigleaf aster, large-leaved aster, largeleaf aster or bigleaf wood aster, is an herbaceous perennial in the family Asteraceae that was formerly treated in the genus Aster. It is native to eastern North America, with a range extending from eastern and central Canada through the northeastern deciduous and mixed forests of New England and the Great Lakes region and south along the Appalachians as far as the northeastern corner of Georgia, and west as far as Minnesota, Missouri and Arkansas. The flowers appear in the late summer to early fall and show ray florets that are usually either a deep lavender or violet, but sometimes white, and disc florets that are cream-coloured or light yellow, becoming purple as they mature. It is one of the parent species of the hybrid Eurybia × herveyi.
Houstonia caerulea, commonly known as azure bluet, Quaker ladies, or bluets, is a perennial species in the family Rubiaceae. It is native to eastern Canada and the eastern United States. It is found in a variety of habitats such as cliffs, alpine zones, forests, meadows and shores of rivers or lakes.
Houstonia (bluet) is a genus of plants in the family Rubiaceae. Many species were formerly classified, along with other genera since segregated elsewhere, in a more inclusive genus Hedyotis.
Echinacea simulata, commonly called wavy leaf purple coneflower, glade coneflower, or prairie purple coneflower, is a species of perennial flowering plant in the family Asteraceae. It is native to the east-central states of the United States. Its natural habitat is dry, calcareous, open areas such as barrens and woodlands.
Symphyotrichum laeve is a flowering plant native to Canada, the United States, and Coahuila (Mexico). It has the common names of smooth blue aster, smooth aster, smooth-leaved aster, glaucous Michaelmas-daisy and glaucous aster.
Eurybia divaricata, the white wood aster, is an herbaceous plant native to eastern North America. It occurs in the eastern United States, primarily in the Appalachian Mountains, though it is also present in southeastern Canada, but only in about 25 populations in the provinces of Ontario and Quebec. In the U.S. it is abundant and common, but in Canada it is considered threatened due to its restricted distribution. It has been introduced to a number of countries in Europe. It can be found in dry open woods as well as along wood-edges and clearings. The species is distinguished by its flower heads that have yellow centers and white rays that are arranged in flat-topped corymbiform arrays, emerging in the late summer through fall. Other distinguishing characteristics include its serpentine stems and sharply serrated narrow heart-shaped leaves. The white wood aster is sometimes used in cultivation in both North America and Europe due to it being quite tough and for its showy flowers.
Agave is a genus of monocots native to the hot and arid regions of the Americas and the Caribbean, although some Agave species are also native to tropical areas of North America, such as Mexico. The genus is primarily known for its succulent and xerophytic species that typically form large rosettes of strong, fleshy leaves. Agave now includes species formerly placed in a number of other genera, such as Manfreda, ×Mangave, Polianthes and Prochnyanthes.
Houstonia pusilla is a plant in the family Rubiaceae native to the United States and common in the southeastern and central parts of the country, from Texas to Florida north to Delaware and South Dakota, plus an isolated population in Pima County, Arizona.
Antennaria plantaginifolia is a perennial forb native to the eastern North America, that produces cream colored composite flowers in spring.
Yucca angustissima, the narrowleaf yucca, is a plant in the family Agavaceae, known as the "narrow-leaved yucca." It is native to Arizona, New Mexico, Colorado and Utah, but grown elsewhere as an ornamental.
Houstonia acerosa, the New Mexico bluet or needleleaf bluet, is a plant species native to Chihuahua, Coahuila, Nuevo León, Tamaulipas, San Luis Potosí, Texas and New Mexico.
Houstonia micrantha, the southern bluet, is a plant species in the coffee family.
Brickellia longifolia, the longleaf brickellbush, is a shrub in the family Asteraceae. It is found in the Colorado Plateau and Canyonlands region of the southwestern United States, in Arizona, Utah, Nevada, and western Colorado.
Boechera retrofracta is a species of flowering plant in family Brassicaceae. The common names include reflexed rockcress.
