Cruciata glabra
{{Short description|Species of plant in the genus Cruciata}}
{{Speciesbox
|image=Cruciata glabra kz04.jpg
|image_caption=
|genus=Cruciata
|species=glabra
|authority=(L.) OpizSeznam: 34 (1852)
|synonyms={{collapsible list|
- Galium bauhini Roem. & Schult.
- Valantia bauhini (Roem. & Schult.) Schur
- Valantia glabra L.
}}}}
Cruciata glabra, smooth crosswort, is a species of flowering plant in the family Rubiaceae, native to Morocco, Algeria, southern, central and eastern Europe, the Caucasus, Kazakhstan, the Altai, and western Siberia.{{cite web |url=http://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:60456820-2 |title=Cruciata glabra (L.) Opiz |author= |date=2017 |website=Plants of the World Online |publisher=Board of Trustees of the Royal Botanic Gardens, Kew |access-date=30 September 2020 }} It is often found in beech (Fagus sylvatica) forests.{{cite journal |last1=Peña |first1=Lorena |last2=Amezaga |first2=Ibone |last3=Onaindia |first3=Miren |title=At which spatial scale are plant species composition and diversity affected in beech forests? |url=https://link.springer.com/content/pdf/10.1007/s13595-011-0147-2.pdf |journal=Annals of Forest Science |year=2011 |volume=68 |issue=8 |pages=1351–1362 |doi=10.1007/s13595-011-0147-2 |s2cid=31895897 |access-date=30 September 2020 |doi-access=free }}