General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Annual
Sun Requirements: Full Sun to Partial Shade
Plant Height: 6 - 16 inches
Plant Spread: 6 - 12 inches
Flowers: Inconspicuous
Flower Color: White
Bloom Size: Under 1"
Flower Time: Late spring or early summer
Summer
Late summer or early fall
Fall
Underground structures: Taproot
Uses: Will Naturalize

Image
Common names
  • Slender Threeseed Mercury

Comments:
  • Posted by wildflowers (North East Texas - Zone 7b) on Mar 3, 2013 10:02 AM concerning plant:
    Native to US. Found in full to partial sun; moist to dry; open woods, meadows and fields. The fruit capsule holds three seeds, probably giving the plant its common name. I first noticed the plant last year when I began to have signs of allergies and looked around for the culprit. Turns out, it is known to have mild allergens when pollination occurs during summer to fall, depending on location.

« Add a new plant to the database

« The Plants Database Front Page