Pycnanthemum tenuifolium, is a flower in the mint family that grows in open, rocky, dry areas. Its leaves are very narrow and needle-like. The flower can be up to 3 feet tall. Clusters of small white flowers the plant produces bloom in late summer and emit a strong minty aroma. Missouri Botanical
You can help scientists understand how climate change is impacting this species by using the phenophase guide below to observe its lifecycle in Nature's Notebook.