| ASP | a spleenwort of eastern North America |
|---|---|
| ASP | tropical Old World or Australian epiphytic fern frequently forming tufts in tree crotches |
| ASP | a fern of the genus Schaffneria |
| ASP | a spleenwort of eastern and southern United States |
| ASP | common North American fern with polished black stripes |
| ASP | ferns having lanceolate fronds that root at the tip |
| ASP | small delicate spleenwort found on a steep slope (as a wall or cliff) of Eurasia and North America |
| ASP | Eurasian fern with simple lanceolate fronds |
| ASP | small rock-inhabiting fern of northern temperate zone and Hawaii with pinnate fronds |
| ASP | small often many-crowned fern with slim green fronds |