Wildflower and Native Grass Plantings all directly benefit Pollinators which are needed for Healthy Native Ecosystems Around the World And The Human Food Supply.
"Pollinators such as bees, butterflies, moths, wasps, flies, beetles and even hummingbirds are essential to roughly 70 percent of the world’s flowering plants. The U.S. alone grows more than 100 crop plants that need pollinators. Without pollinators we would not enjoy strawberries, apples, pumpkins, blueberries or many other fruits and vegetables. And we would not have forage crops like alfalfa and clover. Many plants have increased crop yield and are higher quality after insect pollination. Pollinators also help native plants reproduce, producing fruits and seeds that feed other wildlife.
Bees are the primary pollinator for most wildflowers and crops in the U.S. There are approximately 4000 native species of bees in North America. They range from large bumblebees that form colonies of a single queen and her daughter-workers, to tiny sweat bees that excavate nests in the ground and live solitary lives. Contrary to popular belief, most of our native bees are unlikely to sting unless grabbed or stepped on. Only honey bees, bumble bees and a few of the social wasps (such as yellow jackets – which are not significant pollinators) are likely to sting when their nests are disturbed.
Many people assume the honeybee is native to North America, but it was imported by Europeans in the 1600s. The honeybee is the most common domesticated pollinator in the U.S. The loss of honeybees has been widely reported, but many of our wild native bees are also in trouble. As pollinators disappear the results can be disastrous for plants that depend on them for pollination.
Whether you have a small city lot or a large country garden it is important to have a plan to preserve, protect and attract pollinators to your landscape. Pollinator conservation can be as easy as putting the lawn mower away and planting native wildflowers. Research suggests that native plants are four times more attractive to native bees than non-native flowers. By including a diversity of native flowering plants, you also support a diversity of different types of pollinators" - By Jan Begliner: Source Link
Here is a comprehensive page of pollinator information for the North Texas area etc via the Xerces Society: North Texas Pollinator Resource Center