Participant Info

Species

Polygonum kelloggii [Polygonum polygaloides subsp. kelloggii] [Polygonum confertiflorum] [Polygonum watsonii]

Family

Polygonaceae

CommonName

Kellogg’s knotweed

Presence

maybe

Status

native

EarliestDate

1986

LatestDate

1986

Ecosystem

montane

Geobotanical

SSanjuans

Counties

Conejos

Passes

WildlifePreserves

Other Localities

PhotoRecords

Comments

NEED IN SITU PHOTOS. From the Watershed there is only one herbarium voucher, a plant found near Fox Creek, 12 miles SW of Conejos, on a slope of sandy soil, collected in 1986. This may under-represent the presence of Polygonum kelloggii in the Watershed since, as Ackerfield says, it is "easily overlooked." It is reported from Rio Arriba Co in New Mexico, but no farther south in the Rio Grande drainage. It is present in all USA states west of the Great Plains. Note that Ackerfield (2022) and POWO treat this taxon as a subspecies of Polygonum polygaloides.

Annotation