Flower, Weed
Chamisso arnica
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.
Conical
Black
Longitudinal ribs; white granularGranular:
Resembling or consisting of small grains or particles.
surface.
White pappusPappus:
Modified calyx in Asteraceae, composed of hairs, bristles, awns, or scales. The pappus-like structure attached to milkweed seeds is termed a coma. 
usually fragmented.
Strong white apicalApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
crown.
Not listed
Not included
Asteraceae
Arnica chamissonis Less.
Arnica chamissonis subsp. foliosa var. andina (Nutt.) Ediger & T.M. Barkley
.jpg)
.jpg){kind=link}