Participant Info

Species

Leucosyris parviflora [Arida parviflora] [Machaeranthera parviflora] [Aster parvulus] etc.

Family

Asteraceae

CommonName

small desert tansy

Presence

YES

Status

native

EarliestDate

1896

LatestDate

2024

Ecosystem

basin

Geobotanical

UBasin

Counties

Alamosa, Saguache

Passes

WildlifePreserves

Baca

Other Localities

PhotoRecords

YES Rich Haswell: Alamosa Co, Mosca cpgd 23 Aug 2014

Comments

A Southwest asterid, small desert tansy has been infrequently collected from the Watershed, although it is recorded as early as 1896 ("Alamosa county") and as recently as 2024: Monte Vista NWR and just east of San Luis SWA). So far, locations are restricted to the Upper Basin. Collector Ronald Hartman found Leucosyris parviflora roadside near Alamosa and Moffat (2014). As early as 1931 Frances Ramalay noted that it is associated with greasewood. The Watershed locations are somewhat isolated at the northeastern corner of the USA distribution, which covers only Arizona, Utah, New Mexico, and west Texas. Its Rio Grande presence starts again in Torrance Co, New Mexico, and continues down into far west Texas.

Annotation