Maryland: Bethesda; 5507 Charles Street. Cultivated. Native. Source: swamp lying between stony Run Creek and Pennsylvania Railroad, near friendship International Airport, Anne Arundel Co
Maryland: Bethesda; 5507 Charles Street. Cultivated. Native. Source: swamp lying between Stony Run Creek and Pennsylvania Railroad, near friendship International Airport, Anne Arundel Co
Maryland: Bethesda; 5507 Charles Street. Cultivated. Native. Source: swamp lying between stony Run Creek and Pennsylvania Railroad, near friendship International Airport, Anne Arundel Co
Maryland: Bethesda; 5507 Charles Street. Cultivated. Native. Source: swamp lying between Stony Run Creek and Pennsylvania Railroad, near friendship International Airport, Anne Arundel Co
Maryland: Bethesda; 5507 Charles Street. Cultivated. Native. Source: swamp lying between stony Run Creek and Pennsylvania Railroad, near friendship International Airport, Anne Arundel Co
Maryland: Bethesda; 5507 Charles Street. Cultivated. Native. Source: swamp lying between stony Run Creek and Pennsylvania Railroad, near friendship International Airport, Anne Arundel Co
Maryland: Bethesda; 5507 Charles Street. Cultivated. Native. Source: swamp lying between stony Run Creek and Pennsylvania Railroad, near friendship International Airport, Anne Arundel Co
Maryland: Bethesda; 5507 Charles Street. Cultivated. Native. Source: swamp lying between Stony Run Creek and Pennsylvania Railroad, near friendship International Airport, Anne Arundel Co
Maryland: Bethesda; 5507 Charles Street. Cultivated. Native. Source: swamp lying between stony Run Creek and Pennsylvania Railroad, near friendship International Airport, Anne Arundel Co
Maryland: Bethesda; 5507 Charles Street. Cultivated. Native. Source: swamp lying between stony Run Creek and Pennsylvania Railroad, near friendship International Airport, Anne Arundel Co
Franklin County: sand ridge, in a broad highway powerline right-of-way next to a dense slash pine plantation, the latter too dense to have herbaceous vegetation. By U.S. Rt 319, S of Sopchoppy and 4.8 miles S of the Ochlockonee ri
Gold Mountains, Camp Jaulkus, Nevada Espèce voisine de P. bridgesii gray, elle diffère par ses feuilles engainantes auriculés et par son par ses pédoncules floraux allongés. Dans les "wakes" sablonneuse. Alt. 200 pieds