| Name | Hellenius, Carl Niclas |
| Date of birth | 1745 |
| Date of death | 1820 |
| Remarks | [author note: From 1816 ennobled as von Hellens. Herbarium and type almost completely destroyed in the fire of Turku; some remaining specimens at H] |
| ASA Botanist ID | 101627 botanist |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/5f89adf7-693f-431e-a5bd-3f1cba87b2dc |
| Variant name | Carl Niclas Hellen |
| Author name | Hellenius |
| B & P Author Abbrev. | Hell. |
| Standard/Label Name | C. N. Hellenius |
| Full Name | Hellenius, Carl Niclas |
| Geography Author | Finland |
| Specialty Author | Spermatophytes |
| Citation as Author | Authors of Plant Names. Royal Botanic Gardens, Kew |
| Citation as Author | Taxonomic Literature. Second Edition. Utrecht |
| Author in | Hypericum |
| Author in | De Tropaeolo |