by the seeds on the tip of the grass that is out of the ground all ready
Yes.
you do know that most trees produce seeds without flowers right, and grass.
Congress grass
They reproduce by spores instead of seeds. Ferns also reproduce by spores, not seeds.
If you let it grow and do not cut it, it will sprout stemmy seed heads (called inflorescences) that will produce seeds.
It grows seed heads which contain seeds that drop off and produce new grass seedlings.
The seeds to apple trees are inside of the apple fruit. You just dry the apple seeds and plant them. In order to get grass seed, you need to let the grass grow. Do not cut it and allow it to get tall enough so that it will eventually produce seeds. This can be done with just a small patch of grass. Maybe a 5' x 5' section. Hope this helps.
sometimes
rice is a monocotyledonous flowering plant.
Grass + Grass= Seeds
by the seeds on the tip of the grass that is out of the ground all ready
I'll say no. There are flowers that are called "perfect" which produce both pollen and ovules (seeds). There are flowers that only produce pollen. There are flowers that only produce ovules. There are sometimes flowers that don't produce pollen or ovules, but help attract pollinators to the flowers next to them (like asters). There are even some flowers that produce both pollen and ovules, but the seeds that they produce are produced without sex (it's called apomixis and is pretty rare).
Grass seeds