Stigmas 3; spikes spreading or drooping.
Perigynium prominently 3-angled 68–74
Perigynium large, thin, much inflated 9–16
Perigynium firmer, not inflated.
Beakless 42–45
Beaked or prominently pointed.—
Teeth long, stiff and sharp 17–19
Teeth short and thin, or none 30, 31, 39, 48–53
Stigmas 3; spikes erect or ascending.
Perigynium hairy.—