Sonoran Beardtongue

Palmer, E. 430, US National Herbarium Sheet 571456 Barcode 00896364

Pine shaded understory in fallow, weedy pasture on low hillside in tuffaceous rhyolite gravels

Pine shaded, fallow/overgrown pasture on low hillside in tuffaceous rhyolite gravels.

Plants in grasses on reddish volcanic rhyolite of grassy mid-slope hillside with Dahilia scherffii, Salvia emaciate, Verbena pinetorum, Heliomeris longifolia, Milla biflora

Plants in grasses on reddish volcanic rhyolite of grassy mid-slope hillside with Dahilia scherffii, Salvia emaciate, Verbena pinetorum, Heliomeris longifolia, Milla biflora

Plants in grasses on reddish volcanic rhyolite of grassy mid-slope hillside with Dahilia scherffii, Salvia emaciate, Verbena pinetorum, Heliomeris longifolia, Milla biflora

on open, grassy, undulating plain in basin below eastern Madrean escarpment, among diverse grasses and forbs on coarse volcanic alluvium.

on open, grassy, undulating plain in basin below eastern Madrean escarpment, among diverse grasses and forbs on coarse volcanic alluvium.

Foliage view. Plants on open, grassy, undulating plain in basin below eastern Madrean escarpment, among diverse grasses and forbs on coarse volcanic alluvium.

open grassy bottomland above Rio Papigochic tributary. Volcanic tuffaceous alluvium

open grassy bottomland above Rio Papigochic tributary. Volcanic tuffaceous alluvium. Note linear foliage