Taraxacum sect. Borealia

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Distribution

Asia-Temperate: Afghanistannative; Irannative; Iraqnative; Japan (Hokkaidonative, Honshunative); Kamchatkanative (Kamchatkanative); Kazakhstan (Kazakhstannative); Khabarovsk (Khabarovsknative); Kirgizistan (Kirgizistannative); Kuril Is.native (Kuril Is.native); Magadan (Magadannative); Mongolianative (MongolianativeA); Sakhalinnative; West Siberia (West Siberianative); Xinjiang (Xinjiangnative) Asia-Tropical: Pakistan (Pakistannative); West Himalaya (Himachal Pradeshnative, Jammu-Kashmirnative) Europe: AustrianativeB (Austrianative); East European Russia (East European Russianative); Finland (Finlandnative); France (Francenative); Iceland (IcelandnativeB); ItalynativeC; North European Russia (North European Russianative); Norway (Norwaynative); Svalbard (Svalbardnative); Sweden (Swedennative); Switzerland (Switzerlandnative) Northern America: Alaska (Alaskanative); Aleutian Is.native (Aleutian Is.native); Newfoundland (Newfoundlandnative); Québec (Québecnative)

Description

"Plants medium-sized, rarely robust. Leaves usually mid-green, not thickened, sparsely arachnoid to subglabrous; petiole broadly winged to narrowly winged; leaf blade shallowly to deeply pinnatilobed to pinnatisect; lobes most often patent. Scapes usually growing laterally from leaf rosette, not from center. Outer phyllaries green to blackish green, ± not imbricate, lanceolate to ovate, loosely appressed, erect or erect-patent, usually with a paler broad to narrow border, margin glabrous to sparsely ciliate, apex with a conspicuous horn or sometimes only so in later capitula. Ligules yellow or whitish. Achene grayish straw-colored brown, rarely brown or reddish, usually 4–5 × 0.9–1.1 mm; body shortly spinulose above, usually subabruptly narrowing into a conic to subcylindric 0.5–1.4 mm cone; beak usually 6–11 mm, thin. Pappus white or yellowish white." D,E

Common names

Chinese (China): 北方蒲公英组 bei fang pu gong ying zuF; French (France): Pissenlit à callositésG,1; French (Switzerland): Pissenlit à callositésH,1; German (Switzerland): Gehörntes PfaffenröhrleinI,1; Italian (Switzerland): Tarassaco con involucro callosoJ,1
1. recommended

Credits

Kalheber H. 2010: Image sources (1 added).

Image sources

Handel-Mazzetti 1907: t. 2 (details)K

Bibliography

A. Gubanov I. A., Konspekt flory vnešnej Mongolii (sosudistye rastenija). 1996 (as Taraxacum ceratophorum)
B. Tutin, T. G., Heywood, V. H., Burges, N. A., Valentine, D. H., Walters, S. M. & Webb, D. A., Flora europaea 4 [Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A.]. 1976 (as Taraxacum ceratophorum aggr.)
C. Conti, F., Abbate, G., Alessandrini, A., Blasi, C., An annotated checklist of the Italian vascular flora.. 2005 (as Taraxacum ceratophorum aggr.)
D. Ge X. J., Kirschner J. & Štěpánek J. - Taraxacum in Wu & al., Flora of China 20-21. 2011.
E. Kirschner J. & al. in Folia Geobot. 49. 2014
F. Wu & al., Flora of China 20-21. 2011
G. Tela Botanica, Le réseau de la botanique francophone . 2006 (as Taraxacum ceratophorum)
H. Aeschimann, D. & Heitz, C., Index synonymique de la flore de Suisse et territoires limitrophes (ISFS). 1996 (as Taraxacum ceratophorum aggr.)
I. Synonymie-Index der Schweizer Flora und der angenzenden Gebiete. 1996 (as Taraxacum ceratophorum aggr.)
J. Indice sinonimico della Flora della Svizzera e territori limitrofi. 1996 (as Taraxacum ceratophorum aggr.)
K. Handel-Mazzetti, H. von, Monographie der Gattung Taraxacum. 1907 (as Taraxacum ceratophorum)