Definition: Describing something that is needle-like or slender, often used in reference to certain types of leaves or plant structures.

Example: The acerous foliage of the pine trees created a striking contrast against the blue sky.

Definition: A tiny, dry fruit that contains only one seed and does not open on its own. It is often found in plants like sunflowers.

Example: The sunflower's seeds are actually achenes, which are small and dry fruits.

Definition: Relating to a type of small, dry fruit that does not open to release its seeds.

Example: The achenial characteristics of the plant were studied in detail.

Definition: A type of flowering plant that belongs to the genus Achillea, commonly known as yarrow, which is often used in herbal medicine and gardening.

Example: The garden was filled with achillea, attracting many butterflies.

Definition: A thin, needle-shaped part or structure found in some plants and animals, as well as in certain minerals.

Example: The acicula of the pine tree are sharp and can easily pierce the skin.

Definition: Having a shape that is long and thin, similar to a needle.

Example: The acicular crystals formed in the solution were fascinating to observe under the microscope.

Definition: Having a shape that resembles a needle, typically long and thin.

Example: The aciform leaves of the plant give it a unique appearance.

Definition: Having a shape or structure that looks like a bunch of grapes.

Example: The acinous structure of the gland allows for efficient secretion of enzymes.

Definition: A type of plant that is often poisonous, known for its tuberous roots and distinctive blue or white flowers. It has been used in the past for medicinal purposes, particularly for pain relief.

Example: The herbalist warned against using aconite due to its toxic properties.

Definition: A type of plant that belongs to the buttercup family, known for its beautiful flowers and toxic properties. It is often referred to as monkshood or wolfsbane.

Example: The aconitum plant is often found in mountainous regions and is known for its striking blue flowers.