D
Falling off, and not persistent (such as plant leaves from a non-evergreen plant)
Opening at maturity or ripeness, to discharge contents (such as pollen, seeds or spores)
Refers to the epidermis, or skin
A tool provided to determine the identity of an entity of the natural world (plants, animals, rocks, fish, etc.) in which an organized series of choices presented in sequence, using two choices for each step, narrows down the identity of the individual based on its physical characteristics until a specific name can be applied.
A flowering plant species having two cotyledons, or seed leaves. Typically the seed leaves have a different shape than the "true" leaves, which are the typical shape for the plant species.
The intermingling of molecules of a fluid due to random motion.
Finger-like; lobed or veined and radiating from a common point, or divided with the units arising from a common point.
Having two forms or distinct morphological variants, such as when a plant species has two forms of leaves or two forms of fruit.
Flowers imperfect (unisexual), and having male and female flowers occurring on separate plants.
A temporary, inactive phase when growth and development stop, but potentially will become active following the necessary seasonal or environmental stimulus.
A fleshy or pulpy, one-seeded fruit that has developed from one flower having a single ovary, and the seed has a hard or stony endocarp (the pit) (such as cherries, peaches, plums). A drupelet is a very small drupe.