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1 Spathes absent; inflorescence open and repeatedly branched; [tribe Tradescantieae]
..2 Spathes paired, terminating the stem, resembling foliage leaves in size, shape, texture, and coloration; [tribe Tradescantieae]
......4 Leaves not glaucous; spathe folded; fertile stamens 3, their filaments glabrous; [collectively widespread in our region]
......4 Leaves glaucous; spathe open; fertile stamens 6 (though of 4 disparate forms), their filaments bearded with purple or purple-and-yellow hairs; [TX only in our region]
........5 Leaves linear, > 20× as long as wide; petals bright pink (rarely white); [tribe Tradescantieae]
..........6 Fertile stamens 3, alternating with 3 staminodia; petals pink to purplish or bluish; [tribe Commelineae]
..........6 Fertile stamens 0-6, all fertile (no staminodes); petals white to pink; [tribe Tradescantieae]