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Eyebright

Euphrasia

Also called Eyebrights, An Eyebright

Eyebright
Photo: Unknown author, CC BY-SA 3.0

Eyebright (Euphrasia) is a genus of about 215 small herbaceous flowering plants, many found in alpine and sub-alpine meadows, that partly live as parasites on grasses and other plants. It is generally grown as a wild meadow plant rather than a garden or houseplant, so care depends on its habitat.

Family
Orobanchaceae (Orobanch family)
Light
Full sun, Part shade
Water
Keep the soil moist but not waterlogged, especially while the plant is establishing.
Soil
Moist, humus-rich soil or meadow turf; it thrives where grasses grow.
Temperature
Hardy in cool temperate and alpine climates; tolerates snow and frost.
How easy
Hard
Safety
Not known to be toxic

About

Euphrasia, or eyebright, is a genus of about 215 species of herbaceous flowering plants in the family Orobanchaceae (formerly included in the Scrophulariaceae), with a cosmopolitan distribution. They are hemiparasitic on grasses and other plants. Both the common and generic names refer to the plant's use in a lotion for treating eye infections, with Euphrasia literally meaning 'good-cheer'.

Many species are found in alpine or sub-alpine meadows where snow is common. Flowers usually are borne terminally, are zygomorphic, and have a lower petal shaped like a lip. The most common flower colours are purple, blue-white, and violet. Some species have yellow markings on the lower petal to act as a guide to pollinating insects.

Uses

The plant was known to classical herbalists, but then was not referred to until mentioned again in 1305. Nicholas Culpeper assigned it to the Zodiac sign Leo, claiming that it strengthened the brain. It was also used to treat bad memory and vertigo.

Other Euphrasia plants

Common eyebright · Eyebright

Text excerpted from the Wikipedia article Euphrasia by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

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