Galium odoratum (L.) Scop.
| 1St Flowering Dates For Spring blooming Plants Of The Washington, Dc, Area For The Years 1970 To 1983 S G Shetler and S K Wiser (1987) Proceedings of The Biological Society of Washington 100: 993-1017 | |
| Die ältesten Pflanzenangaben von Baden-Württemberg aus der Literatur S Seybold (1994) Stuttgarter Beiträge zur Naturkunde Serie A (Biologie) 514: 1-18 | |
| Phylogeny of the Rubiaceae-Rubioideae, in Particular the Tribe Rubieae: Evidence from a Non-Coding Chloroplast DNA Sequence Alessandro Natali, Jean-Francois Manen and Friedrich Ehrendorfer (1995) Annals of the Missouri Botanical Garden 82: 428-439 |