Petiole rounded or slightly flattened adaxially in distal portion; rachis glabrous or with a few widely scattered hairs; pinnae completely glabrous; largest ultimate segments (excluding terminal pinnae) usually more than 18 mm; spores averaging 46–53 µm diam. 2n = 116.

Habitat: Cliffs and rocky slopes, on a variety of acidic substrates including quartzite and granite
Elevation: 1700–2400 m

Distribution

• Generated Map
• Legacy Map

Ariz., Tex., n Mexico.

Discussion

Pellaea ternifolia subsp. arizonica and P. wrightiana hybridize; the hybrids are morphologically intermediate tetraploids and have malformed spores.

Selected References

None.

Lower Taxa

None.