They call it this because most of the sunflower is flower sperm. The sac holding the sunflower seed is full of the sperm.
a vascular plant---------------They are called spermatophytes.
Angiosperm
An angiosperm that has one seed leaf in its embryo called a monocot. The type of angiosperm that lives for more than two years are perennial.
It is called an Angiosperm.
ovary
It's an Angiosperm
ovary
angiosperm
An angiosperm egg develops in a protective structure called an ovule. The ovule is contained within the ovary of the flower and houses the female gametophyte that will eventually develop into the egg cell.
Angiosperm
Japanese Maple (Acer Palmatum) is an angiosperm.
angiosperm, monocot