Hieracium nigrescens Willd.
Engler, H.G.A., (1900-1968)
Pflanzenr.
vol. 280 (1921)
[Compositae - Hieracium X-XVI]
p. 644 f. 52
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Hieracium nigrescens Willd.
name cited:
Hieracium nigrescens Willd.
family: Compositae
tribe: Lactuceae
subtribe: Hieraciinae
epithet: nigrescens
Illustration contributed by:
University of Toronto Library, Canada
link to this page:
http://www.plantillustrations.org/illustration.php?id_illustration=181819
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synonyms:
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1 524230 Hieracium nigrescens Willd.
H.G.A. Engler, Pflanzenr., vol. 280(X-XVI): [Heft 77], (Compositae - Hieracium X-XVI): p. 644, fig. 52 (1921)