Orobanchaceae
Drug eyebright
Euphrasia stricta
- Family
- Orobanchaceae
- Genus
- Euphrasia
Pet and kid safety: not checked yet. Check pet-safe plants
Is yours looking unwell? Scan your plant — free
Common names
By language (21)
- Arabic
- عرقون مخطط
- arz
- عرقون مخطط
- Belarusian
- Цяцюшнік прамастаячы, Зязюлька, Кашачы сярдзечнік, Пельнік, Чабрэц, Шчыр
- Czech
- Světlík tuhý
- Danish
- Spids Øjentrøst
- Dutch
- Stijve ogentroost
- English
- Drug eyebright, Eyebright, Rigid eyebright
- Estonian
- Sirge silmarohi
- Finnish
- Ketosilmäruoho
- French
- Euphraise raide
- German
- Steifer Augentrost
- hsb
- Prosty swětlik
- Japanese
- エウフラシア・ストリクタ, アイブライト
- Latvian
- Stāvais žibulītis, Ārstniecības žibulītis
- Lithuanian
- Stačioji akišveitė
- Macedonian
- Крута очинка
- Polish
- Świetlik wyprężony
- Russian
- Очанка прямая, Очанка прямостоячая, Очанка сжатая, Очанка торчащая
- Slovenian
- Toga smetlika
- Swedish
- Vanlig ögontröst, Ögontröst
- Welsh
- Effros unionsyth
Synonyms
- Euphrasia alpina subsp. asturica (Pugsley) Nava & Fern.Casado
- Euphrasia asturica Pugsley
- Euphrasia brevipila f. eglandulosa (Brenner) H.Lindb.
- Euphrasia brevipila f. subeglandulosa H.Lindb.
- Euphrasia brevipila var. eglandulosa Brenner
- Euphrasia brevipila var. reayensis Pugsley
- Euphrasia cebennensis var. edouardii Sennen ex Rothm.
- Euphrasia edouardii Sennen
- Euphrasia eliae Sennen
- Euphrasia eliasii Sennen
- Euphrasia ericetorum Jord. ex Boreau
- Euphrasia ericetorum subsp. stricta (J.P.Wolff ex J.F.Lehm.) Dostál
- Euphrasia gracilis subsp. ericetorum (Jord. ex Boreau) Nyman
- Euphrasia heribaudii Chabert
- Euphrasia nemorosa subsp. ericetorum (Jord. ex Boreau) Berher
- Euphrasia nemorosa subsp. rigidula (Jord.) Berher
- Euphrasia nemorosa subsp. stricta (J.P.Wolff ex J.F.Lehm.) Marcailhou
- Euphrasia officinalis f. eglandulosa (H.Lindb.) Cajander
- Euphrasia officinalis f. subeglandulosa (H.Lindb.) Cajander
- Euphrasia officinalis subsp. stricta (J.P.Wolff ex J.F.Lehm.) Čelak.
- Euphrasia officinalis subvar. stricta (J.P.Wolff ex J.F.Lehm.) F.Towns.
- Euphrasia officinalis var. stricta (J.P.Wolff ex J.F.Lehm.) Wahlb.
- Euphrasia pumila A.Kern.
- Euphrasia reayensis (Pugsley) P.D.Sell
- Euphrasia rigidula Jord.
- Euphrasia stricta f. pseudosuecica Erdner
- Euphrasia stricta subsp. edouardi (Sennen) G.Monts.
- Euphrasia stricta subsp. edouardii (Sennen) G.Monts.
- Euphrasia stricta subsp. pseudosuecica (Erdner) Soó
- Euphrasia stricta var. suecica (Murb. & Wettst.) Karlsson
- Euphrasia suecica Murb. & Wettst.
- Euphrasia tatarica prol. stricta (J.P.Wolff ex J.F.Lehm.) Rouy
- Euphrasia tatarica var. ericetorum (Jord. ex Boreau) Rouy
- Euphrasia tavastiensis W.Becker
Flowers
- In flower
- July to September (from 131 flowering iNaturalist observations worldwide)
Characteristics
- Growth habit
- Forb/herb
- Lifespan
- Annual
- In the US and Canada
- Canada: introduced, Lower 48 states: introduced
Photos
FlowerPhoto: carnifex, CC BY 4.0, from iNaturalist 
FlowerPhoto: Fyodor Pudovikov, CC BY 4.0, from iNaturalist 
FlowerPhoto: Susan Blayney, CC BY 4.0, from iNaturalist 
FlowerPhoto: Алексей Ябс, CC0, from iNaturalist 
Photo: Bernd Haynold, CC BY 2.5, from Wikimedia Commons 
Photo: Jean-Paul Boerekamps, CC0, from iNaturalist 
Photo: Bernd Haynold, CC BY-SA 2.5, from Wikimedia Commons 
Photo: Drepanostoma, CC BY 4.0, from iNaturalist 
Photo: Bernd Haynold, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Drepanostoma, CC BY 4.0, from iNaturalist 
Photo: Bernd Haynold, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Michel Langeveld, CC BY 4.0, from iNaturalist
More in Euphrasia
- Northern eyebrightEuphrasia micranthaOrobanchaceae
- Euphrasia salisburgensisOrobanchaceae
- Euphrasia hirtellaOrobanchaceae
- Common eyebrightEuphrasia nemorosaOrobanchaceae
- EyebrightEuphrasia officinalisOrobanchaceae
- EyebrightEuphrasia frigidaOrobanchaceae
- Euphrasia argutaOrobanchaceae
- Euphrasia pectinataOrobanchaceae
- Euphrasia grandifloraOrobanchaceae
- Euphrasia pictaOrobanchaceae
- Maritime eyebrightEuphrasia tetraquetraOrobanchaceae
- Euphrasia azoricaOrobanchaceae
Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.