Parogonum ciliinode (Michaux) Desjardins & J.P. Bailey

Locations ofParogonum ciliinode (Michaux) Desjardins & J.P. Bailey in Virginia

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Detail

Family
Polygonaceae
Botanical Name
Parogonum ciliinode (Michaux) Desjardins & J.P. Bailey
Common Name
Fringed Bindweed, Fringed Black Bindweed
Synonym(s)
Fallopia cilinodis (Michx.) Holub; Polygonum cilinode Michaux
Flora of Virginia Name/Status
Fallopia cilinodis (Michaux) Holub
Comments
The treatment here follows a recent transfer of this species and another Asian one to the genus Parogonum. According to Flora of the Southeastern U.S., "the two species of Parogonum (e. Asian and e. North American) have usually been considered to be congeneric with the species of Fallopia; Desjardins et al. (2023, PhytoKeys 220: 83-108) found that Parogonum is sister to Fallopia + Muehlenbeckia, and elevated section Parogonum Haraldson to genus rank to maintain a taxonomy of monophyletic genera." It should be noted, however, that support for the cladogram branch separating out sect. Paragonum is quite weak (55% bootstrap support).
Habitat
Open forests, clearings, and rock outcrops at middle to high elevations. Infrequent in the mountains.
Native Status
Native

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