Hieracium nigrescens subsp. lingulatum (Hook. & Arn.) Zahn Zahn, in Engler, Pflanzenr. 77. 1921. 668 1921

Nomenclatural References

• person : George Arnott Walker-Arnott (1799-1868) Based on occurrence of standard abbreviation 'Arn.' in the authors string.
• person : Karl Hermann Zahn (1865-1940) Based on occurrence of standard abbreviation 'Zahn' in the authors string.
• person : William Jackson Hooker (1785-1865) Based on occurrence of standard abbreviation 'Hook.' in the authors string.
• database : The Plant List v1.1 record gcc-61907
• database : The Plant List version 1.0, record: gcc-61907