Page "Seed" Paragraph 10

Many structures commonly referred to as " seeds " are actually dry fruits.

Sunflower seeds are sold commercially while still enclosed within the hard wall of the fruit, which must be split open to reach the seed.

Different groups of plants have other modifications, the so-called stone fruits ( such as the peach ) have a hardened fruit layer ( the endocarp ) fused to and surrounding the actual seed.

Nuts are the one-seeded, hard-shelled fruit of some plants with an indehiscent seed, such as an acorn or hazelnut.