Participant Info

Species

Helianthus nuttallii [Helianthus fascicularis] [Helianthus laetiflorus] etc.

Family

Asteraceae

CommonName

Nuttall’s sunflower

Presence

YES

Status

native

EarliestDate

1916

LatestDate

2019

Ecosystem

basin, foothill, ruderal

Geobotanical

Garitas, NCristos, UBasin, LBasin

Counties

Alamosa, Conejos, Costilla, Rio Grande, Saguache

Passes

WildlifePreserves

Great Sand Dunes

Other Localities

PhotoRecords

YES Rich Haswell: Saguache Co, 12.7 miles W of Saguache by Hwy 114, 2 Sept 2019

Comments

Nuttall's sunflower has not been frequently recorded from the Watershed, but locally it persists in wet places such as ditches, barrow pits, and mesic meadows. It was collected at the seep 12.7 miles W of Saguache on Hwy 114 (“Ball Arroyo”) in 1916, 1984 and 2019. In the USA its distribution is centered in the Rockies but extends in scattered pockets into the Great Plains and east to the Mississippi River. It followss the Rio Grande drainage through New Mexico to the border with Mexico, but no farther.

Annotation