indehiscent fruit

In an indehiscent fruit, the seeds are surrounded by a dry and hard, vellum-like or lignified pericarp. The fruit remains closed at maturity and the seeds are not released. It can be, among other, berries (e. g. in Vaccinium – Blueberry), drupes (e. g. in Prunus – Plum), nuts (e. g. in Quercus – Oak Tree), nutlets (e. g. in Ranunculus – Buttercup), achenes (e. g. in Ambrosia – Ragweed and other Asteraceae – Daisy family members) and caryopses (e. g. in Setaria – Bristlegrass and other Poaceae – Grasses).