This is the first year I've noticed it. One is growing out of a pot that has aloe in it. One is out in the garden. The other is in the rock mulch bed in front of our porch. So it is growing in well drained potting soil, garden soil, and soil that has a decent amount of clay.
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This is what it looked like at first
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Here you can see it is growing up the stem of a dead sunflower. Also, these are the flowers when closed up