CPC Plant Profile: Laramie False Sagebrush
Search / Plant Profile / Sphaeromeria simplex
Plant Profile

Laramie False Sagebrush (Sphaeromeria simplex)

This small herb flowers from May to August, producing large, yellow flowers heads. Photo Credit: J. Locklear
Description
  • Global Rank: G2 - Imperiled
  • Legal Status: N/A
  • Family: Asteraceae
  • State: WY
  • Nature Serve ID: 135228
  • Date Inducted in National Collection: 02/09/1992

The arid basins and plains of Wyoming are a tough place to live. Desert dryness couples with punishing winds and extremes of heat and cold to create an environment not unlike that found high in the mountains. It should not be surprising, then, to find similar plants in both places - dwarf plants that hunker down out of the elements. These diminutive, compact plants occur in Wyoming's basins and plains with an abundance matched in few other places in the world. Among them is the Laramie false sagebrush.

Participating Institutions
Updates
Nature Serve Biotics
  • 05/02/2017

Known only from south-central Wyoming where it is restricted to windswept ridges, rims, buttes, and barren slopes of rocky or gravelly limestone-sandstone. Approximately 22 occurrences are known. Threats include wind energy development and mining.

Jim Locklear
  • 01/01/2010

One population near Laramie is located on the edge of an active limestone quarry. Some BLM populations are along roadsides that are potentially impacted by compaction from vehicles, new road and trail development, and competition from exotic plants (Fert

Jim Locklear
  • 01/01/2010

Long thought to be limited to one population near Laramie. Now known from 11 occurrences in Wyoming, all of which have been observed or discovered since 1996. Probably close to 1 million individuals within these populations (Fertig 2000).

Jim Locklear
  • 01/01/2010

None known.

MORE

Be the first to post an update!

Photos
Nomenclature
Taxon Sphaeromeria simplex
Authority (A. Nels.) Heller
Family Asteraceae
CPC Number 4071
ITIS 38436
USDA SPSI3
Common Names Laramie false sagebrush | Laramie chickensage
Associated Scientific Names Sphaeromeria simplex | Tanacetum simplex
Distribution Limited to southeastern Wyoming in the western foothills of the Laramie Range and Shirley Mountains, and the western edge of the Shirley Basin (Albany, Carbon, Converse, and Natrona counties).
State Rank
State State Rank
Wyoming S2
Habitat

Gentle slopes or rims of dry, rocky limestone-sandstone """"pebble plains"""" in wind-scoured openings. Occurs in cushion plant communities within more densely vegetated stands of juniper (Juniperus osteosperma), limber pine (Pinus flexilis), big sagebrush (Artemisia tridentata), or mountain mahogany (Cercocarpus montanus). Elevation 7200-8760 ft.

Ecological Relationships

Unknown.

Pollinators
Common Name Name in Text Association Type Source InteractionID
Flies
small flies Suspected Pollinator Floral Link
Other
Ants Suspected Pollinator Floral Link

Donate to CPC to Save this Species

Fall fundraising drive has begun! We're looking for 2,500 people to protect our planet. With you by our side, we will build a future where people live in harmony with nature. Come help and become a CPC donor today.

Donate Today