1	"Sepals 5–9, elongating to c. 9 mm long and becoming unequal, hardened and twisted in fruit, with apices spreading or recurved; mericarps usually 2, closely surrounded by the sepals"	"Plagiobothrys plurisepaleus"
1	"Sepals 5, herbaceous or tough, elongating to c. 6 mm but not hardened in fruit, apices remaining erect; mericarps usually 4, loosely sheathed by the sepals"	2
2	"Sepals fused for about one-third of their length; mericarps regularly rectangular- reticulate; stem-hairs spreading"	"Plagiobothrys canescens"
2	"Sepals almost entirely free, fused only at very base; mericarps coarsely and irregu- larly reticulate; stem-hairs appressed"	"Plagiobothrys elachanthus"