Herb or Spice
Brazilian cress, toothache plant, Para cress
AcheneAchene:
A dry, hard, one-chambered, one-seeded indehiscent fruit, as in buckwheat (Fagopyrum) or sunflower (Helianthus). The fruit wall is not united with the seed coat.
Oblong
Black
White spines on margins, white hairy islands.
ApexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
is indented.
White hairs along margins. Spines on apexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar. near pappusPappus:
Modified calyx in Asteraceae, composed of hairs, bristles, awns, or scales. The pappus-like structure attached to milkweed seeds is termed a coma. 
margin.
Not listed
Not included
Asteraceae
Acmella oleracea (L.) R.K. Jansen
Spilanthes oleracea L.
