1	"Fertile flowers subtended by modified sterile flowers formed of antler-like scales or hooked spines"	2
1	"Fertile flowers never subtended by modified sterile flowers formed of antler-like scales or hooked spines"	3
2	"Leaves alternate; modified sterile flowers represented by antler-like scales"	"Digera {Digera muricata}"
2	"Leaves opposite; modifed sterile flowers represented by hooked spines"	"Pupalia {Pupalia lappacea}"
3	"Filaments fused almost to their tips, the tubes 5-toothed, teeth deeply bilobed with anthers set between the lobes; bracteoles with a verical crest along the dorsal surfae of the midribs"	Gomphrena
3	"Filaments fused only at their bases; bracteoles not dorsally cristate"	4
4	"Ovaries with few to many ovules"	5
4	"Ovaries with only 1 ovule each"	6
5	"Fruits berries; flowers in racemes or on  racemose branches, the uppermost branches forming a broad terminal panicle; terminals 1.5-2.25 mm long"	"Deeringia {Deeringia maranthoides}"
5	"Fruits circumscissile capsules; flowers in dense silvery to pinkish spikes; tepals 6-10 mm long"	"Celosia {Celosia argentea}"
6	"Pseudostaminodes absent"	7
6	"Pseudostaminodes present"	9
7	"Plants straggling shrubs; fruits globose berries"	"Bosea {Bosea amherstiana}"
7	"Plants herbsl fruits circumscissile or irregularly dehiscing capsules"	8
8	"Plants bisexual; stigmas capitate, undivided"	"Nothosaerva {Notosaerva brachiata}"
8	"Plants unisexual; stigmas 2-3, linear"	Amaranthus
9	"Flowers in lax panicles, unisexual"	"Iresine {Iresine herstii}"
9	"Flowers in spikes, with spikelike branches, or in axillary heads, bisexual"	10
10	"Bracteoles strongly spinescent with long-excurrent midribs; flowers in pedunculate spikes, the lower flowers increasingly distant in fruit"	Achyranthes
10	"Bracteoles ucronate or aristate but not strongly spinescent; flowers in dense, axillary, sessile or pedunculate heads, spikes, or panicles of spikelike branches"	11
11	"Stigmas captiate; tepals glabrous or almost so or with tufts of glochidiate hairs"	Alternanthera
11	"Stigmas 2, disinct, divergent; tepals more or less densely lanate"	Aerva