Insects and wind.
grasses
Because they are pollinated by wind.
Grasses and grains are wind-pollinated, and plants are seed pollinated. There is a difference.
Common examples of anemophilous (wind-pollinated) plants are ragweed, grass, and conifers.(Generally, any pollen that is considered an allergen, comes from an anemophilous plant)
That is a matter of taste. Grasses (the prime example) can be very attractive. It is the flower not the plants being attractive in case of insect pollinated and not so attractive in case of wind pollinated.
No. Corn is really a variety of grass, and grasses are wind pollinated.
Because they are wind pollinated so they have no need to attract insects.
Grasses are primarily wind-pollinated, meaning their pollen is carried by the wind from one plant to another. Grasses do not rely on insects or animals for pollination, as their flowers are typically small, inconspicuous, and lack attractive features like nectar or bright colors. This wind-driven pollination method allows grasses to easily spread their pollen over long distances to increase genetic diversity.
Grasses belong to the family of Poacaea (formerly Graminae) and are plants with sheathing leaves, and generally bear their seeds on a particular stalk. Mostly wind pollinated. Bamboo and sugar cane are among the larger grasses.
Wind-pollinated plants are primarily responsible for causing more hay fever than insect-pollinated plants. This is because wind-pollinated species, such as grasses, trees, and some weeds, release large quantities of lightweight pollen into the air, which can easily be inhaled by people. In contrast, insect-pollinated plants tend to produce heavier, stickier pollen that is less likely to become airborne and cause allergic reactions. Therefore, individuals with hay fever are more affected by pollen from wind-pollinated plants.
They don't need to be. Color is one method used by insect pollinated plants to attract the insects. Wind pollinated plants such as Grasses and Pine trees don't need to attract pollinators. The male flowers simply release the pollen on to the breeze on a "hit or miss" basis.
because, they are mainly wind pollinated and don't require bright flowers to attract insects