Ageratina

locally common sub-shrub in moist rocky soils along open, heavily grazed, creek bank. Elev. 5610' Det. R. Spellenberg

locally common sub-shrub in moist rocky soils along open, heavily grazed, creek bank. Elev. 5610' Det. R. Spellenberg

locally common sub-shrub in moist rocky soils along open, heavily grazed, creek bank. Elev. 5610' Det. R. Spellenberg

locally common sub-shrub in moist rocky soils along open, heavily grazed, creek bank. Elev. 5610' Det. R. Spellenberg

locally common sub-shrub in moist rocky soils along open, heavily grazed, creek bank. Elev. 5610' Det. R. Spellenberg

locally common sub-shrub in moist rocky soils along open, heavily grazed, creek bank. Elev. 5610' Det. R. Spellenberg

locally common sub-shrub in moist rocky soils along open, heavily grazed, creek bank. Elev. 5610' Det. R. Spellenberg

locally common sub-shrub in moist rocky soils along open, heavily grazed, creek bank. Elev. 5610' Det. R. Spellenberg

moist soil of roadside seeps along low road cut in pale volcanic rhyolitic tuff. Unfortunately this botanically rich habitat was recently destroyed by construction of a new paved highway to Batopilas

moist soil of roadside seeps along low road cut in pale volcanic rhyolitic tuff. Unfortunately this botanically rich habitat was recently destroyed by construction of a new paved highway to Batopilas

roadside in grassy, open clearing above arroyo on volcanic tuff substrate.

roadside in grassy, open clearing above arroyo on volcanic tuff substrate.

roadside in grassy, open clearing above arroyo on volcanic tuff substrate.

roadside in grassy, open clearing above arroyo on volcanic tuff substrate.

roadside in grassy, open clearing above arroyo on volcanic tuff substrate.

partially shaded, mesic roadside bank on rhyolitic tuff substrate

partially shaded, mesic road bank on rhyolitic tuff substrate

partially shaded mesic road side bank on rhyolitic tuff

mesic west face of vertical road cut in rhyolitic tuff