Polygonum
Guides
Anticlea multiferata
Many-lined Carpet Moth, many-lined carpet
Anticlea multiferata, commonly known as the many-lined carpet moth, is a small geometrid moth with a wingspan of 19–25 mm. It is one of the most widely distributed North American carpet moths, occurring from the Arctic through temperate regions. The species shows pronounced geographic variation in adult flight timing, with southern populations active in spring and northern populations active in early summer.
Boloria alaskensis
Alaskan Fritillary, Mountain Fritillary
Boloria alaskensis is a fritillary butterfly in the family Nymphalidae, described by William Jacob Holland in 1900. It occurs in North America and North European Russia. The species is very similar to Boloria pales, requiring careful identification. Two subspecies are recognized: B. a. alaskensis and B. a. halli. The larvae feed on specific host plants in the genus Polygonum.
Lycaena dorcas claytoni
Clayton's Copper
Lycaena dorcas claytoni is a subspecies of copper butterfly in the family Lycaenidae. It belongs to the dorcas copper complex, a group of closely related taxa distributed across North America. The subspecies was described by A.E. Brower in 1940. Like other members of the genus Epidemia (formerly placed in Lycaena), this taxon is associated with wetland habitats and larval host plants in the genus Polygonum.
Lycaena mariposa
Mariposa copper
Lycaena mariposa, the mariposa copper, is a small butterfly in the family Lycaenidae. It occurs in western North America, where adults are active in mid-summer. The species has a wingspan of 23–28 mm and exhibits the copper-orange coloration typical of its genus. Larvae feed on specific host plants including Vaccinium arbuscula and Polygonum douglasii. Two subspecies are recognized: L. m. penroseae and L. m. charlottensis.
Lycaena nivalis
lilac-bordered copper, nivalis copper
Lycaena nivalis is a small butterfly in the family Lycaenidae, known as the lilac-bordered copper or nivalis copper. It inhabits the western mountains of North America. Adults are active during mid-summer, with a flight period from July to mid-August. The species has a wingspan of 25–29 mm. Two subspecies are recognized: L. n. nivalis and L. n. browni.
Ostrinia marginalis
Ostrinia marginalis is a small crambid moth described by Francis Walker in 1866. It is found across northern North America from Newfoundland and Maine westward through the Canadian provinces to the Yukon and Northwest Territories. The species is associated with wetland habitats, specifically bogs and marshes. Its larvae feed on Rumex (dock) and Polygonum (knotweed) species.
Pyrrhia exprimens
Purple-lined Sallow
Pyrrhia exprimens, commonly known as the purple-lined sallow, is a moth in the family Noctuidae, subfamily Heliothinae. It has a transcontinental distribution spanning North America and northern Eurasia. The species was first described by Francis Walker in 1857 and is characterized by moderate size with distinctive wing patterning.
Scopula sentinaria
Scopula sentinaria is a geometrid moth with a transcontinental distribution spanning northern North America and northern Eurasia. The species occupies dry shrubby clearings and edge habitats across boreal and subarctic regions. Adults are active during early summer in a single annual generation, with larvae developing on Polygonum aviculare. The species is notable for its broad geographic range and adaptation to open, disturbed habitats at high latitudes.