| Issue Date | Title | Author(s) |
| 2015 | Allium canariense (Amaryllidaceae), a species endemic to the Canary Islands | Friesen, Nikolai ; Herden, Tobias; Schoenfelder, Peter |
| 2020 | Allium species of section Rhizomatosa, early members of the Central Asian steppe vegetation | Friesen, Nikolai ; Smirnov, Sergei V.; Shmakov, Alexander I.; Herden, Tobias; Oyuntsetseg, Batlay; Hurka, Herbert |
| 2016 | Dated phylogenies and historical biogeography of Dontostemon and Clausia (Brassicaceae) mirror the palaeogeographical history of the Eurasian steppe | Friesen, Nikolai ; German, Dmitry A.; Hurka, Herbert; Herden, Tobias; Oyuntsetseg, Batlai; Neuffer, Barbara |
| 2016 | Dated phylogeny and biogeography of the Eurasian Allium section Rhizirideum (Amaryllidaceae) | Sinitsyna, Tatiana A.; Herden, Tobias; Friesen, Nikolai |
| 2019 | Ecotypes or phenotypic plasticity-The aquatic and terrestrial forms of Helosciadium repens (Apiaceae) | Herden, Tobias; Friesen, Nikolai |
| 2020 | Entwicklung eines bundesweiten Netzwerks genetischer Erhaltungsgebiete für Wildsellerie (GE-Sell) | Bönisch, Maria; Herden, Tobias; Zander, Matthias; Nachtigall, Marion; Friesen, Nikolai ; Bernhardt, Nadine; Frese, Lothar |
| 2019 | Genetic analysis of Helosciadium repens (Jacq.) W.D.J. Koch populations in Germany : fundamental research for conservation management | Herden, Tobias |
| 2020 | Genetic diversity of Helosciadium repens (Jacq.) WDJ Koch (Apiaceae) in Germany, a Crop Wild Relative of celery | Herden, Tobias; Boenisch, Maria; Friesen, Nikolai |
| 2017 | Genetic variation in <i>Goniolimon speciosum</i> (Plumbaginaceae) reveals a complex history of steppe vegetation | Volkova, Polina A.; Herden, Tobias; Friesen, Nikolai |
| 2017 | Genetic variation in Goniolimon speciosum (Plumbaginaceae) reveals a complex history of steppe vegetation | Volkova, Polina A.; Herden, Tobias; Friesen, Nikolai |
| 2020 | Genetische Erhaltungsgebiete für Helosciadium repens (JACQ.) W. D. J. KOCH | Herden, Tobias; Bönisch, Maria; Friesen, Nikolai |
| 2019 | Genetische Erhaltungsgebiete für Helosciadium repens (Jacq.) W.D.J.Koch | Herden, Tobias; Bönisch, Maria; Friesen, Nikolai |
| 2015 | <i>Allium canariense</i> (Amaryllidaceae), a species endemic to the Canary Islands | Friesen, Nikolai ; Herden, Tobias; Schoenfelder, Peter |
| 2016 | Phylogeny of Allium L. subgenus Anguinum (G. Don. ex WDJ Koch) N. Friesen (Amaryllidaceae) | Herden, Tobias; Hanelt, Peter; Friesen, Nikolai |
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