Flower, Weed
pinnate prairie coneflower, grayhead prairieconeflower
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.
Truncate
Black
Striate with stipplesStipples:
Numerous small dots or specks.
The margins are slightly curved in at the 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.
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. laterally compressed, producing a sharp margin on either side. Base is slightly lateral to the center.
Not listed
Not included
Asteraceae
Ratibida pinnata (Vent.) Barnhart
Lepachys pinnata (Vent.) Torr. & A. Gray
Rudbeckia pinnata Vent.
