Euphrasia nemorosa, commonly known as Common Eyebright, is a hemiparasitic annual herb native to grasslands, heathlands, and open woodlands across Europe. It has also been introduced to North America and New Zealand. In its native habitat, it often forms symbiotic relationships with various grass species, from which it derives some of its nutrients. Common Eyebright typically grows to a height of 5-15 cm, with a sprawling habit that forms low patches. Its small, white to purple flowers, which are often marked with yellow and have a distinctive lilac streak, bloom from June to September and are highly attractive to bees and other pollinators.

Common Eyebright is valued for its delicate flowers and its traditional use in herbal medicine, particularly for eye-related ailments. It is not commonly cultivated in gardens but can be found in wildflower mixes for naturalistic plantings. It prefers well-drained, nutrient-poor soils and full sun to partial shade. Due to its hemiparasitic nature, it may not be suitable for all garden settings, as it requires host plants to thrive. While generally not problematic, it can be susceptible to powdery mildew in humid conditions.CC BY-SA 4.0