1	"Stipe dark brown to generally +- black; leaf blade adaxially with white exudate; SN, SCoRI"	"Pentagramma pallida"
1	"Stipe brown to red-brown; leaf blade adaxially generally without exudate; CA-FP, GB, DMtns"	2
2	"Leaf blade adaxially not sticky, generally glabrous"	"Pentagramma triangularis subsp. triangularis"
2	"Leaf blade adaxially sticky or +- not, +- densely or sparsely glandular"	3
3	"Leaf blade adaxially +- not sticky, generally sparsely glandular; pinnules on basal side of lowermost pinnae deeply pinnately lobed to +- 1-pinnate"	"Pentagramma triangularis subsp. maxonii"
3	"Leaf blade adaxially generally sticky, +- densely glandular; pinnules on basal side of lowermost pinnae +- entire to shallowly pinnately lobed"	"Pentagramma triangularis subsp. viscosa"