Vegetation Classification and Mapping Project Report - USGS

B4 Cliff-rose - Crispleaf Buckwheat Shrubland
Location: Cliff-rose - Crispleaf Buckwheat Shrubland was restricted to Headquarters Mesa on the basaltcapped
terraces.
Photosignature: This map class was distinguished by the dark color of the underlying basaltic soils.
Purshia stansburiana appeared on the photos as a large, dark green, scraggly shrub, and it occurred in low
abundance with a patchy distribution. The understory, including Eriogonum corymbosum, was not easy to
distinguish and typically looked like a mixture of dark green shrubs between the basaltic rocks.
G7
Figure.G7..Ground.photo.for.map.class.B4,.Cliffrose.-.Crispleaf.Buckwheat.Shrubland.
Figure.G8..Photosignature.for.map.class.B4,.
Cliff-rose.-.Crispleaf.Buckwheat.Shrubland.
Plant communities
Purshia stansburiana - Eriogonum corymbosum Shrubland
Group map class Colorado Plateau Mixed Bedrock and Tableland (1 of 3)
Management map class Cliff-rose - Crispleaf Buckwheat Shrubland (1 of 1)
Macrogroup map class Colorado Plateau Mixed Bedrock and Tableland (1 of 3)
Number of map units in park 11
Number of map units in park & environs 11
Number of map units less than 0.5 ha 0 (0.0% of total map class area)
Area of map class in park
57.1 ha / 141.1 ac
Total area of map class
57.1 ha / 141.1 ac
Proportion of land cover in park 0.2%
Proportion of map class in project environs 0.0%
Base map class accuracy user 66.7 (43.1 - 84.1), producer 88.9 (62.3 - 97.5)
Group map class accuracy user 52.9 (41.6 - 64.0), producer 73.0 (59.7 - 83.1)
Management map class accuracy user 66.7 (43.1 - 84.1), producer 88.9 (62.3 - 97.5)
Macrogroup map class accuracy user 52.9 (41.6 - 64.0), producer 77.1 (63.8 - 86.6)
Documentation for base map class
5 2003 relevés, 0 1996 relevés, 7 AA observation sites
Appendix G: Map Class summaries