Sunflowers

annuals on pale reddish quartz sands of an outlier of low semi-stabilized dunes, north of the active dune field in the Mdanos de Samalayuca Natural Protected Area.

annuals on pale reddish quartz sands of an outlier of low semi-stabilized dunes, north of the active dune field in the Mdanos de Samalayuca Natural Protected Area.

Photo shows chaff of mature head, cypselae matured and gone.

Flowering head with ray and disk flowers, and mature head with chaff and few cypselae

Flowering head with ray and disk flowers