Aristolochia californica, the California pipevine, California Dutchman's-pipe, or California snakeroot is a perennial woody vine of western North America.
Battus philenor, the pipevine swallowtail or blue swallowtail, is a swallowtail butterfly found in North America and Central America. This butterfly is black with iridescent-blue hindwings. They are found in many different habitats, but are most commonly found in forests. Caterpillars are often black or red, and feed on compatible plants of the genus Aristolochia. They are known for sequestering acids from the plants they feed on in order to defend themselves from predators by being poisonous when consumed. The adults feed on the nectar of a variety of flowers. Some species of Aristolochia are toxic to the larvae, typically tropical varieties. While enthusiasts have led citizen efforts to conserve pipevine swallowtails in their neighborhoods on the West coast, the butterfly has not been the subject of a formal program in conservation or protected in legislation. The butterfly is however of "Special Concern" in Michigan, which is on the Northern limit of its range.
Senna hebecarpa, with the common names American senna and wild senna, is a species of legume native to eastern North America.
Amaranthus pumilus, the seaside amaranth or seabeach amaranth, is a species of amaranth. This annual plant is now a threatened species, although it was formerly scattered along the eastern coast of the United States, its native range.
Symphyotrichum prenanthoides is a species of flowering plant in the family Asteraceae known by the common name crookedstem aster. It is native to northcentral and northeastern North America.
Verbena simplex, commonly known as narrowleaf vervain, is a perennial herbaceous plant plant in the Verbenaceae (vervain) family. It is native to central and eastern North America where it is found in open, dry, habitats on calcareous soil. It produces lavender flowers in the summer.
Asclepias viridiflora, is commonly known as green comet milkweed, green-flower milkweed, and green milkweed. It is a widely distributed species of milkweed (Asclepias), known from much of the eastern and central United States from Connecticut to Georgia to Arizona to Montana, as well as southern Canada and northern Mexico. The Latin specific epithet viridiflora means green-flowered.
Orbexilum pedunculatum, commonly known as Sampson's snakeroot, is a species of flowering plant in the legume family. It is native primarily to the Southeastern United States where it is found in prairies and savannas, often in acidic soil. It is a perennial that produces racemes of flowers in early summer.
Aristolochia watsonii is a perennial plant in the birthwort family (Aristolochiaceae), found growing among plants of the Arizona Uplands in the Sonoran Desert. The plant is inconspicuous, small and hard to spot, but can be found by following the pipevine swallowtail which lays eggs on it.
Smilax tamnoides, common name bristly greenbrier, is a North American species of plants native to the United States and Canada. It is widespread from Ontario and New York State south to Texas and Florida.
Gamochaeta purpurea, the purple cudweed, purple everlasting, or spoonleaf purple everlasting, is a plant native to North America.
Draba reptans, common names Carolina draba, Carolina whitlow-grass, Creeping whitlow-grass, and Whitlow-grass, is an annual plant in the family Brassicaceae that is native to North America.
Carex oligocarpa, common name richwoods sedge, eastern few-fruited sedge, few-fruit sedge, and few-fruited sedge is a Carex species that is native to North America. It is a perennial.
Carex schweinitzii, common name Schweinitz's sedge, is a Carex species native to North America. It is a perennial.
Onosmodium virginianum, common names gravel-weed, wild Job's tears, false gromwell, and Virginia false-gromwell is perennial plant native to the eastern United States.
Carex typhina, common name cattail sedge, is a species of Carex native to North America.
Rhynchospora scirpoides, also referred to as Psilocarya scirpoides; common names long-beaked beaksedge and long-beaked bald rush; is a plant in the Rhynchospora genus found in North America.
Scleria verticillata, known as low nutrush or whorled nutrush, is a plant in the sedge family Cyperaceae. It is native to Ontario, Canada, the eastern United States, The Bahamas, and Cuba.
Panicum verrucosum, common name warty panicgrass, is a plant in North America. It is listed as a special concern and believed extirpated in Connecticut. It is listed as threatened in Indiana and Michigan, and as endangered in Ohio.
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).
