Rincon Mountain District, Saguaro National Park Vegetation Inventory, Mapping,andCharacterization Report,Saguaro National Park Rincon MountainDistrict nant layer gravel of and small rocks. surface cover ischaracterized by shallow and well-drained, gravelly to skeletal loamy soils underlying adomi - is restricted to south-trending varying hills grade of (10–30%)from 1,350to 1,600meters (4,429–5,250ft). The low slopes along the eastern the boundary of park, mainly between the Miller and Turkey Creek trailheads. It This herbaceous community covers the 0.1%(30ha/74 ac)of Rincon Mountain District and ispresent on the Schott’s plant century (Agaveschotti). niana). This species accounts for virtually all cover inthis stratum and only has one documented associate, The field stratum (<0.5m)is characterized by a dense (>40% cover) Lehmann matrix lovegrassof (E. lehman- desertbroom (Baccharis sarothroides), cactus appleOpuntia engelmannii),and ( beargrass ( Nolina microcarpa ). ( sociates. Documented subcanopy components include common sotol (Dasylirion wheeleri), catclaw acacia diverse but sparse (5%cover) shrubs mixof and succulents, with noconsistent dominants or common as tree species. The subcanopy stratum (0.5–2m)ischaracterized by a and velvet mesquite (Prosopis velutina) are the only other documented provide minimal (1–2%)cover. Alligator juniper(Juniperus deppeana) lehmanniana). The canopy oaks are present assmall (3–4ft)trees that perennialof grasses solely dominated by Lehmann lovegrass (Eragrostis can blue oak (Quercus oblongifolia), with adense (>40%cover) matrix cover) tree canopy Emory oak (Quercus (>2m)of emoryi)and/or Mexi- This herbaceous community ischaracterized by avery sparse (<<5% (Emory oak-Mexicanblueoak)/LehmannlovegrassHerbaceousAssociation(P) Association (P) 2. (Quercusemoryi-oblongifolia)/EragrostislehmannianaHerbaceous Mimosa aculeaticarpa manzanita), pointleaf (Arctostaphylos pungens),Palmer’s plant century (Agavepalmeri), • • • Common species

Eragrostis lehmanniana Quercus emoryi Quercus oblongifolia - Rincon Mountain District, Saguaro National Park