Alisma plantago-aquatica

Alisma plantago-aquatica, also known as European water-plantain, common water-plantain or mad-dog weed, is a perennialflowering plant widespread across most of Europe and Asia from Portugal and Morocco to Japan, Kamchatka and Vietnam. It is also regarded as native in northern and central Africa as far south as Tanzania. It is reportedly naturalized in southern Africa, Australia, New Zealand, Alaska, British Columbia, Washington State and Connecticut.^[2][3][4] Some sources maintain that the species is widespread across North America, but these reports appear to have been based on misidentified specimens.^[5] It is found on mud or in fresh waters.

Sagittaria latifolia

Sagittaria latifolia is a plant found in shallow wetlands and is sometimes known as broadleaf arrowhead,^[2] duck-potato,^[3] Indian potato, or wapato. This plant produces edible tubers that were extensively used by the Indigenous peoples of the Americas

Description

Sagittaria latifolia is a variably sized (2 to 20 meters in length) perennial growing in colonies that can cover large amounts of ground. The roots are white and thin, producing white tubers covered with a purplish skin a good distance (0.3 to 1 m long, 0.15 to 0.6 meter deep) from the mother plant. It is green and white. The plant produces rosette of leaves 

Atriplex patula

Atriplex patula L. (Spear Saltbush; Common Orache; Spear Orach; Spreading Orach) is a ruderal, circumboreal species of annualherbaceous plants in the genus Atriplex naturalized in many temperate regions.

Although it is commonly asserted that Atriplex patula has been naturalized in North America only since the eighteenth century,^[1][2] seeds ascribed to this species occur on the west coast of North America in buried marsh deposits that predate European contact.,

Cercis canadensis

Cercis canadensis (eastern redbud) is a large deciduous shrub or small tree, native to eastern North America from southern Ontario, Canada south to northern Florida but which can thrive as far west as California. It is the state tree of Oklahoma.

Description

It typically grows to 6–9 m (20–30 ft) tall with an 8–10 m (26–33 ft) spread. It generally has a short, often twisted trunk and spreading branches. A 10-year-old tree will generally be around 5 m (16 ft) tall. The bark is dark in color, smooth, later scaly with ridges somewhat apparent, sometimes with maroon patches.

Toxicodendron radicans

Toxicodendron radicans, commonly known as eastern poison ivy^[1] or poison ivy, is a poisonous Asian and North American flowering plant that is well known for causing an itching, irritating, allergic and sometimes painful rash in most people who touch it, caused by urushiol, a clear liquid compound in the plant's sap.^[2] The species is variable in its appearance and habit, and despite its common name it is not a true ivy (Hedera), but rather a member of the cashew and almond family. Toxicodendron radicans is commonly eaten by many animals, and the seeds are consumed by birds,^[3] but poison ivy is most often thought of as an unwelcome weed.

Rhus typhina

Rhus typhina syn. R. hirta, the staghorn sumac^[1] is a species of flowering plant in the family Anacardiaceae, native to eastern North America. It is primarily found in southeastern Canada, the northeastern and midwestern United States and the Appalachian Mountains,^[2]but is widely cultivated as an ornamental throughout the temperate world.

Heracleum lanatum

Heracleum maximum, cow parsnip (also known as Indian celery, Indian rhubarb or pushki) is the only member of the genus Heracleum native to North America. Its classification has caused some difficulty, with recent authoritative sources referring to it variously as Heracleum maximum or Heracleum lanatum, or as either a subspecies, H. sphondylium subsp. montanum, or a variety, H. sphondylium var. lanatum, of the common hogweed (H. sphondylium). The classification given here follows ITIS.

Apocynum cannabinum

Apocynum cannabinum (dogbane, amy root, hemp dogbane, prairie dogbane, Indian hemp, rheumatism root, or wild cotton)^[2] is a perennialherbaceous plant that grows throughout much of North America - in the southern half of Canada and throughout the United States.^[1][3] It is a poisonous plant: Apocynum means "poisonous to dogs". All parts of the plant are poisonous and can cause cardiac arrest if ingested. The cannabinum in the scientific name and the common names hemp dogbane and Indian hemp refer to its similarity to Cannabis as a fiber plant (see Hemp), rather than as a source of a psychoactive drug (see Cannabis (drug)

Asclepias incarnata ssp. incarnata

Asclepias incarnata (swamp milkweed, rose milkweed, rose milkflower, swamp silkweed, and white Indian hemp) is a herbaceous perennial plant species native to North America.^[2] It grows in damp to wet soils and also is cultivated as a garden plant for its flowers, which attract butterflies and other pollinators with nectar. Like most other milkweeds, it has sap containing toxic chemicals,^[3] a characteristic that repels insects and other herbivorous animals.

Asclepias syriaca

Asclepias syriaca, commonly called common milkweed, butterfly flower, silkweed, silky swallow-wort, and Virginia silkweed, is a species of flowering plant. It is in the genus Asclepias, the milkweeds. This species is native to southern Canada and of much of the conterminous eastern U.S., east of the Rocky Mountains, excluding the drier parts of the prairies. It grows in sandy soils and other kinds of soils in sunny areas. It was one of the earliest North American species described in Cornut's 1635 work Canadensium Plantarum Historia. The specific name was reused by Linnaeus due to Cornut's confusion with a species from Asia Minor.