Definition: A structure in certain plants that produces eggs, typically shaped like a flask, found in mosses, ferns, and some gymnosperms.

Example: The archegonium is essential for the reproduction of many non-flowering plants.

Definition: A type of violet dye that comes from certain lichens, specifically from the genera Roccella and Lecanora.

Example: The artist used archil to create beautiful violet hues in her paintings.

Definition: A type of tropical palm tree found in Asia and other warm regions, known for its tall trunk and feathery leaves.

Example: The areca palm is often used as an ornamental plant in gardens and homes.

Definition: Describing something that has a pattern of small, distinct areas or sections, often resembling cracked dried mud or small circles.

Example: The artist used an areolate technique to create texture in the painting.

Definition: A small, often raised area on a cactus where spines, flowers, or roots grow, or a small section created by the veins of a leaf.

Example: The areoles on the cactus were covered with beautiful flowers.

Definition: A type of plant known as swamp pink, or a figure from mythology who was transformed into a spring to escape a river god.

Example: The arethusa blooms beautifully in wetland areas during the spring.

Definition: A fleshy outer covering of a seed that often has a bright color and develops from the seed's stalk.

Example: The aril of the yew tree is bright red and attracts birds.

Definition: Describing a seed that has a special outer covering called an aril, which is often fleshy and can be colorful.

Example: The fruit of the plant is arillate, making it attractive to birds and other animals.

Definition: A type of covering or outgrowth that comes from a specific part of a seed, rather than the usual places where such coverings are found.

Example: The arillode of the nutmeg adds a unique flavor to the spice.

Definition: A thin, bristle-like part or appendage found on certain plants or insects, often resembling a hair or spike.

Example: The arista on the fly's antenna helps it sense its environment.