Pinus sabiniana Woodland Alliance
Foothill pine woodland

USDA Ecological Section Map

Summary Information

  • Primary Life FormTree
  • Elevation300-2100 m
  • State RarityS4
  • Global RarityG4
  • DistributionUSA: CA (NatureServe) (FEIS)
  • Endemic to CaliforniaYes
  • Endemic to California Floristic Province and DesertsYes
  • Date Added1995/11/01

Characteristic Species

Pinus sabiniana is dominant or co-dominant in the tree canopy with Aesculus californica, Juniperus californica, Juniperus occidentalis, Pinus coulteri, Quercus chrysolepis and Quercus wislizeni.

Vegetation Layers

Trees < 20 m; canopy open to intermittent and one or two tiered. Shrubs are common or infrequent. Herbaceous layer is sparse or grassy.

Membership Rules

  • Pinus sabiniana > 10% absolute cover and dominant in the tree canopy (Klein et al. 2007).
  • Pinus sabiniana > 50% relative cover in the tree canopy (Sikes et al. 2023).


Streamside terraces, valleys, slopes, and ridges. Soils are shallow, often stony, infertile, and moderately to excessively drained.

Other Habitat, Alliance and Community Groupings

MCV (1995) Foothill pine series, Stands on San Benito Mountain
NVCS (2009) Pinus sabiniana woodland alliance
Calveg Gray pine
Holland Serpentine digger pine-chaparral woodland, Non-serpentine digger pine-chaparral woodland
Munz Foothill woodland
WHR Blue oak-foothill pine
CDFW CA Code 87.130.00

National Vegetation Classification Hierarchy

Formation Class Mesomorphic Tree Vegetation (Forest and Woodland)
Formation Subclass Temperate Forest
Formation Warm Temperate Forest
Division Madrean Forest and Woodland
Macro Group California Forest and Woodland
Group Californian evergreen coniferous forest and woodland