P. anceps Michx. Inflorescence

P. anceps Michx. Bloom detail

P. anceps Michx. Bloom detail

P. anceps Michx. Ligule/sheath

P. capillare Whole plant

P. capillare Bloom

P. capillare Inflorescence

P. capillare Bloom

P. capillare Inflorescence detail

P. capillare Pulvini

P. capillare Spikelets

P. capillare Ligule/sheath

P. coloratum Bloom

P. coloratum Bloom detail

P. coloratum Bloom detail

P. dichotomiflorum Bloom

P. dichotomiflorum Bloom detail

P. dichotomiflorum Spikelet detail

P. dichotomiflorum Ligule/sheath

P. diffusum Inflorescence

P. diffusum Inflorescence detail

P. diffusum Ligule/sheath

P. hallii Whole plant in habitat

P. hallii Whole plant in habitat

P. hallii Whole plant

P. hallii Whole plant

P. hallii Bloom

P. hallii Bloom detail

P. hallii Bloom detail

P. hallii Spikelet detail

P. hallii Ligule/sheath

P. hillmanii Inflorescence

P. hillmanii Inflorescence detail

P. hillmanii Inflorescence detail

P. hillmanii Spikelets

P. hillmanii Culm detail

P. obtusum Bloom

P. obtusum Bloom detail

P. obtusum Culm detail

P. obtusum Ligule/sheath

P. rigidulum Whole plant

P. rigidulum Bloom

P. rigidulum Inflorescence

P. rigidulum Bloom detail

P. rigidulum Inflorescence detail

P. rigidulum Inflorescence detail

P. rigidulum Bloom detail

P. rigidulum Spikelet detail

P. rigidulum Rhizome

P. rigidulum Ligule/sheath

P. virgatum Whole plant in habitat

P. virgatum Whole plant in habitat

P. virgatum Bloom

P. virgatum Bloom detail

P. virgatum Bloom detail

P. virgatum Bloom detail

P. virgatum Rhizomes

P. virgatum Spikelet detail

P. virgatum Culm detail

P. virgatum Ligule/sheath