''Cruciata glabra'', smooth crosswort, is a species of
flowering plant
Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants th ...
in the genus ''
Cruciata
''Cruciata'' is a genus of flowering plants in the family Rubiaceae. It is found in Europe, northern Africa, and across southern and central Asia from Turkey to the western Himalaya and north to the Altay region of Siberia.
Species
* '' Cruci ...
'', native to Morocco, Algeria, southern, central and eastern Europe, the Caucasus, Kazakhstan, the Altai, and western Siberia.
It is often found in beech (''
Fagus sylvatica
''Fagus sylvatica'', the European beech or common beech is a deciduous tree belonging to the beech family Fagaceae.
Description
''Fagus sylvatica'' is a large tree, capable of reaching heights of up to tall and trunk diameter, though mor ...
'') forests.
Subspecies
The following subspecies are currently accepted:
*''Cruciata glabra'' subsp. ''balcanica''
(Ehrend.) Soó
*''Cruciata glabra'' subsp. ''glabra''
*''Cruciata glabra'' subsp. ''hirticaulis''
(Beck) Natali & Jeanm.
*''Cruciata glabra'' subsp. ''krylovii''
(Iljin) E.G.Naumova
References
Cruciata glabra
Plants described in 1852
{{Rubioideae-stub