Flower, Weed
stiff tickseed
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
Margin: white
Center: black
Shiny with fine longitudinal lines
Narrow, marginal wings
PappusPappus:
Modified calyx in Asteraceae, composed of hairs, bristles, awns, or scales. The pappus-like structure attached to milkweed seeds is termed a coma. 
crown and basalBasal:
The base of the fruit or seed opposite the apical end.
attachment are similar.
Not listed
Not included
Asteraceae
Coreopsis palmata Nutt.
