Pentagramma triangularis subsp. maxonii
Amer. Fern J. 80: 16. 1990.
Petiole glabrous, not viscid-glandular, rarely white-farinose proximally. Blades thin and herbaceous (but not leathery), not viscid-glandular, abaxially densely white-farinose, adaxially with scattered yellow capitate glands. Distal pinnae mostly regularly lobed. Proximal basiscopic lobes of basal pinnae pinnatifid, often deeply so. 2n = 60, 120.
Habitat: Desert scrub and in pine and oak woodlands
Elevation: 100–2500 m
Ariz., Calif., N.Mex., Mexico in Baja California, Sonora.