1	"Bracteoles present at the base of the calyces; calyces not split dorsally and ventrally; valves of the capsule free at the top"	"Orobanche ramosa"
1	"Bracteoles absent; calyces split dorsally and ventrally into 2 free segments; valves of the capsules united at the top"	2
2	"Stamens inserted low in the corolla tubes; ovaries not conspicuously swollen after fertilization"	"Orobanche minor"
2	"Stamens inserted at  about midlength on the corolla tubes; ovaries conspicuously swollen after fertilization"	"Orobanche cernua"