Young Brunette Girl Travelling Around The World With Sunflowers

Sunflowers can be used to extract toxic ingredients from soil, such as lead, arsenic and uranium. They were used to remove cesium-137 and strontium-90 from a nearby pond after the Chernobyl disaster.
Sunflower genome
The sunflower, Helianthus annuus, genome is diploid with a base chromosome number 17 and an estimated genome size 2871–3189 Mbp. Some sources claim its true size is around 3.5 billion base pairs (slightly larger than the human genome).