"Sunflower plant" refers to a type of flowering plant that produces sunflowers, which are bright yellow flowers with a circular shape and a brown center. Full definition
The agriculture ministry is also testing how well plants can clean the soil in highly contaminated areas, and several non-governmental organizations have followed suit with a campaign of sunflower planting. (scientificamerican.com)
Detectable quantities of imidacloprid have also been measured in the pollen of corn and sunflower plants whose seeds had been treated with the chemical. (sciencenews.org)
What is of interest is that while the Sunflower expansion permit was denied, Rod Bremby is expected to approve renewals of the permits of the existing plants in Kansas, all of which are more polluting than the proposed Sunflower plant was to be. (dotearth.blogs.nytimes.com)