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Key to Aphyllon

Orobanchaceae

Aphyllon

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1 Flowers (1-) 6-15 (-20) per stem; stem 1.5--15 (-22) cm tall; pedicels 1-7 (-15) cm long, similar in length to the stem axis; [peripheral to our region, s. IL, c. OK, and nc. TX northwards and westwards]
1 Flowers 1-2 (-4) per stem; stem 1-5 (-7) cm tall; pedicels (1-) 2-11 (-17) cm long, longer than the stem axis; [widespread in our region]