Texas Gardening: Gardening with Texas Native Plants & Wildflowers, part 11., 1 by frostweed

frostweed wrote:
Hello Idiopath, that was a good question about the Sunflowers.
As a matter of fact I found this list of the Genus helianthus at USDA that listed 170 varieties of them, here is the link.

http://plants.usda.gov/java/nameSearch

The one type osf Sunflower I have that I know for sure, is the common Texas Sunflower, Helianthus annus, this sunflower is rather small and the plant will bear many blooms, instead of just one big flower.
Here is the picture of Common Sunflower, Helianthus annus. Notice that it has a brown center, and the center is rather small.