peduncle
Peduncle: A peduncle is a stalk that attaches a flower or flower cluster to the main stem of a plant.
Glossary Category:
pellicle
Pellicle: A pellicle is a thin film or layer that covers the surface of some cells. Pellicles help to protect the cells from dehydration and other environmental stresses.
Penetrant
Penetrant:A penetrant is a substance that is used to penetrate a material. Penetrants are often used in manufacturing and construction to allow for the penetration of materials that would otherwise be difficult or impossible to penetrate. Penetrants can be either liquid or solid, and are often used in conjunction with other tools such as drills or saws.
Perennial
Perennial:A perennial plant is a plant that lives for more than two years. Perennials are typically hardy plants that can withstand harsh conditions, and they often bloom for extended periods of time. Many gardeners prefer to grow perennials because they do not have to be replanted every year like annuals.
periderm
Periderm:The periderm is a layer of tissue that covers the outside of a plant. The periderm is made up of three layers: the epidermis, the cortex, and the phelloderm. The periderm protects the plant from damage and helps it to regulate its water loss.
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