Taraxacum oblongatum

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Taraxacum oblongatum

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Common names

Chinese (China): 椭圆蒲公英 tuo yuan pu gong yingA; French (France): PissenlitB,1
1. recommended

Description

Herbs 10–25 cm tall. Petiole pinkish purple, winged; leaf blade deep green with a light green midvein sometimes pinkish near base, ± oblong-oblanceolate, 7–18 × 3–4 cm, sparsely arachnoid to subglabrous, ± pinnatisect; lateral lobes 3–5 pairs, ± triangular, relatively broad, usually hamate-recurved, distal margin convex and usually entire or seldom denticulate; interlobes short but proximal ones longer, margin entire or denticulate, often with a raised dark border; terminal lobe ± helmetshaped or almost rounded, base often cordate, proximal margin ± straight or sigmoid, distal margin convex and ± entire, apex subobtuse to obtuse and mucronate. Scape light green but later brownish purple, ± arachnoid. Capitulum 3.5–5 cm wide. Involucre base ± rounded. Outer phyllaries 14–18, regularly arranged, linear-lanceolate to lanceolate, (10–)11–13(–14) × 2.3–3.5 mm, arcuate-recurved, abaxially dark green and often suffused purplish brown, adaxially grayish green, ± unbordered. Ligules deep yellow; outer ligules flat, outside striped light grayish brownish purple. Stigmas dark grayish green to almost blackish. Anthers polliniferous; pollen grains variable in size. Achene grayish straw-colored brown, (3.4–)3.8–4.3 mm, ± densely spinulose in upper ca. 1/4, ± abruptly narrowing into a ± conic 0.5–0.6 mm cone; beak 1–1.1 cm. Pappus ± white, ca. 6 mm. Fl. spring. Agamosperm. 2n = 24.

from: Ge X., Kirschner J. & Štepánek J. in Wu Z. Y. & al. (ed.), Flora of China 20–21: 324–325. 2011, Beijing & St Louis.

Image sources

van Soest 1966: 481 (type photo)C
Marklund 1940: 182 (specimen photo)D
Marklund 1940: 182 (specimen photo)E
Lindberg 1935: t. 19 (details)F
Dudman & Richards 1997: 239 (silhouette, details)G
Jäger & Werner 2005: 724, fig. 2 (details)H

Distribution

Asia-Temperate: China South-Central (YunnanintroducedA); Turkey (TurkeyintroducedI) Europe: Austria (AustrianativeJ,K); BelgiumnativeL,M; Denmark (DenmarknativeN,O); Finland (FinlandnativeP,Q,R); France (Channel Is.nativeG,Q, FrancenativeM,S,T,U); Germany (GermanynativeV,W,X); Great Britain (Great BritainnativeQ,R,Y,Z); Ireland (IrelandnativeG,Q); Netherlands (NetherlandsnativeAA,M,Q,R); Poland (PolandnativeAB,AC,AD); Spain (SpainnativeAE,U); Sweden (SwedennativeAF,Q,R)

Credits

Kalheber H. 2010: Image sources (6 added).

Bibliography

A. Wu & al., Flora of China 20-21. 2011
B. Tela Botanica, Le réseau de la botanique francophone . 2006 (as Taraxacum pseudoleptodon Soest)
C. Soest, J. L. van, New Taraxacum species from Europe [I, II, III, IV] in Proc. Kon. Ned. Akad. Wetensch., Ser. C, Biol. Med. Sci. 69. 1966 (as Taraxacum pseudoleptodon Soest)
D. Marklund, G., Die Taraxacum-Flora Nylands in Acta Bot. Fenn. 26. 1940 (as Taraxacum falciferum Puol.)
E. Marklund, G., Die Taraxacum-Flora Nylands in Acta Bot. Fenn. 26. 1940
F. Lindberg, H., Die Früchte der Taraxacum-Arten Finnlands in Acta Bot. Fenn. 17. 1935
G. Dudman, A. A. & Richards, A. J., Dandelions of Great Britain and Ireland. 1997
H. Rothmaler, W., Exkursionsflora von Deutschland, 4: Gefäßpflanzen: Kritischer Band, ed. 10. 2005
I. Gurdal B. & al., Contributions to the genus Taraxacum (Asteraceae) — five new species records for the flora of Turkey in Pl. Biosystems. 2017
J. Polatschek, A., Flora von Nordtirol, Osttirol und Vorarlberg 2. 1999
K. Uhlemann, I. in Neilreichia 6. 2011
L. Lundevall, C.-F. & Øllgaard, H., The genus Taraxacum in the Nordic and Baltic countries: types of all specific, subspecific and varietal taxa, including type locations and sectional belonging in Preslia 71. 1999 (as Taraxacum pseudoleptodon)
M. Soest, J. L. van, New Taraxacum species from Europe [I, II, III, IV] in Proc. Kon. Ned. Akad. Wetensch., Ser. C, Biol. Med. Sci. 69. 1966 (as Taraxacum pseudoleptodon)
N. Hansen, K., Dansk feltflora. 1993 (as Taraxacum falciferum)
O. Lundevall, C.-F. & Øllgaard, H., The genus Taraxacum in the Nordic and Baltic countries: types of all specific, subspecific and varietal taxa, including type locations and sectional belonging in Preslia 71. 1999 (as Taraxacum falciferum)
P. Marklund, G., Die Taraxacum-Flora Nylands in Acta Bot. Fenn. 26. 1940 (as Taraxacum falciferum)
Q. Sell, P. & Murrell, G., Flora of Great Britain and Ireland 4. 2006
R. 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
S. Anonymous [Association Tela Botanica], Tela Botanica. Flore électronique. Flores en ligne, France métropolitaine (as Taraxacum pseudoleptodon)
T. Lundevall, C.-F. & Øllgaard, H., The genus Taraxacum in the Nordic and Baltic countries: types of all specific, subspecific and varietal taxa, including type locations and sectional belonging in Preslia 71. 1999 (as Taraxacum cardiastrum)
U. Sahlin, C. I., New Pyrenean species of Taraxacum (Compositae) in Pirineos 121. 1984 (as Taraxacum cardiastrum)
V. Rothmaler, W., Exkursionsflora von Deutschland, 4. Gefäßpflanzen: Kritischer Band, ed. 8. 1994
W. Rothmaler, W., Exkursionsflora von Deutschland, 4. Gefäßpflanzen: Kritischer Band, ed. 8. 1994 (as Taraxacum falciferum)
X. Wisskirchen, R. & Haeupler, H., Standardliste der Farn- und Blütenpflanzen Deutschlands. 1998
Y. Lundevall, C.-F. & Øllgaard, H., The genus Taraxacum in the Nordic and Baltic countries: types of all specific, subspecific and varietal taxa, including type locations and sectional belonging in Preslia 71. 1999
Z. Lundevall, C.-F. & Øllgaard, H., The genus Taraxacum in the Nordic and Baltic countries: types of all specific, subspecific and varietal taxa, including type locations and sectional belonging in Preslia 71. 1999 (as Taraxacum perhamatum)
AA. Soest, J. L. van, Atlas of leaf shapes of Taraxacum species from the Netherlands [I, II, III]. 1970-1973
AB. Głowacki, Z., Øllgaard, H. & Krechowski, J., Genus Taraxacum in the herbarium of University of Silesia in Badan. Fijzogr. Pol. Zachod., B 53. 2004
AC. Mirek, Z., Piękoś-Mirkova, H., Zając, A. & Zając, M., Flowering plants and pteridophytes of Poland. A Checklist. in Biodivers. Poland 1. 2002
AD. Mirek, Z., Vascular plants of Poland. A Checklist. in Polish Bot. Stud. Guideb. Ser. 15. 1995 (as Taraxacum falciferum)
AE. Villar, L., Sesé, J. A. & Ferrández, J. V., Atlas de la flora del Pirineo Aragonés 2. 2001 (as Taraxacum cardiastrum)
AF. Lundevall, C.-F. & Øllgaard, H., The genus Taraxacum in the Nordic and Baltic countries: types of all specific, subspecific and varietal taxa, including type locations and sectional belonging in Preslia 71. 1999 (as Taraxacum fusciceps)