Definition: A type of plant body that does not have separate parts like stems, roots, or leaves, and grows in a simple, undifferentiated form.

Example: The thallus of the algae is often flat and leaf-like, allowing it to absorb sunlight efficiently.

Definition: A thick area filled with bushes and small trees, often difficult to walk through.

Example: The deer hid in the thicket to avoid being seen.

Definition: The way a plant or organism grows or moves in response to touching a solid object.

Example: The vine showed thigmotropism by wrapping around the pole as it grew.

Definition: A type of raspberry plant found in North America that produces small, thimble-shaped fruits. The fruit is often sweet and can be eaten fresh or used in jams and desserts.

Example: We picked thimbleberries from the bushes during our hike in the forest.

Definition: A type of plant found in North America that belongs to the genus Anemone, known for its cylindrical fruit clusters that resemble a thimble.

Example: The thimbleweed blooms beautifully in the spring, attracting many pollinators.

Definition: A type of plant that has sharp leaves and colorful flowers, often found in fields and gardens.

Example: The thistle is known for its beautiful purple flowers and sharp leaves.

Definition: The soft, fluffy material that comes from the seeds of a thistle plant, which helps the seeds to float in the air.

Example: In the autumn, the garden was filled with thistledown drifting through the breeze.

Definition: Having thistles or resembling thistles; prickly or thorny in nature.

Example: The thistly bushes made it difficult to walk through the garden.

Definition: A sharp, pointed part of a plant that can cause pain or injury.

Example: Be careful of the thorn on that rose bush; it can hurt if you touch it.

Definition: A type of plant that is a shrub or bush with sharp thorns or spines, often found in dry areas.

Example: The thornbush grew thickly along the path, making it difficult to walk through.