The species in the broad sense is the most abundant fern on the planet, though more
properly it probably consists of several more limited species, currently treated as
varieties. My pictures are of Pteridium aquilinum var. pubescens from
Plant habit at Barfoot Park in the Chiricahua Mts., AZ, 9/5/04.
Immature marginal sori at Barfoot Park, 9/5/04.
Expanding leaf at Barfoot Park, 9/5/04.
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