Taraxacum porrigentilobatum

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Taraxacum porrigentilobatum

no image available

Description

"Plants medium-sized. Leaves suberect, deep to dark green, deeply lobed, lateral lobes usually 2–3, triangular, recurved, acute, distal margin usually straight, ± entire, interlobes usually with long acute teeth or lobules, often dark purple bordered or blotched, terminal lobe usually elongated, large, sagittate, often dentate at the base. Petioles narrow, purple. Scapes pale brownish, often suffused with purple, irregularly araneous. Outer bracts 14–17, arcuate or erecto-patent (subadpressed or adpressed in young heads), ± not imbricate, sparsely ciliate, dark green or blackish green and slightly glaucous, ± lanceolate, 8–10 mm long, 3.5–3.8 mm wide, borders distinct, whitish membranaceous, 0.2–0.3 mm wide, including an indistinct membranaceous margin. Capitulum yellow, 3–3.5 cm in diameter, outer ligules striped greyish green, inner ligule teeth yellow or grey-reddish. Stigmas ± green, pollen present. Achenes 3.6–4.3 mm long, achene body spinulose (often subsparsely) above, subgradually narrowing to a subcylindrical cone 0.8–1.1 mm long, rostrum 9–10.5 mm long, pappus dirty white or pale straw, 6–7 mm long."

from Kirschner & Štěpánek (1998: 148-150)A

Image sources

Jäger & Werner 2005: 713, fig. 10 (details)B
Kirschner & Štěpánek 1998: 149 (habit)C
Railonsala A. 1964: 61 (specimen photo)D
Uhlemann I. 2003: 53 (habit)E

Distribution

Europe: Czechoslovakia (Czech RepublicnativeF,G,H,I); FinlandnativeF,G,J; GermanynativeF,G,K,L

Credits

Kalheber H. 2010: Image sources (4 added).

Bibliography

A. Kirschner J. & Štěpánek J., Monograph of Taraxacum sect. Palustria. 1998 (as Taraxacum tragopogon Kirschner & Štěpánek)
B. Rothmaler, W., Exkursionsflora von Deutschland, 4: Gefäßpflanzen: Kritischer Band, ed. 10. 2005 (as Taraxacum tragopogon Kirschner & Štěpánek)
C. Kirschner J. & Štěpánek J., Monograph of Taraxacum sect. Palustria. 1998 (as Taraxacum tragopogon Kirschner & Štěpánek)
D. Railonsala A., Taraxaca nova IV in Annales botanici fennici 1: 55-66
E. Uhlemann I., Die Gattung Taraxacum (Asteraceae) im östlichen Deutschland in Mitt. Florist. Kart. Sachsen-Anhalt Sonderh. 2003. 2003 (as Taraxacum tragopogon Kirschner & Štěpánek)
F. Kirschner J. & Štěpánek J., Monograph of Taraxacum sect. Palustria. 1998 (as Taraxacum tragopogon)
G. Kirschner J. & Štěpánek J., Notes on the series of Taraxaca exsiccata, Fasc. V-VII (Studies in Taraxacum 16) in Preslia 69: 35-58. 1997 (as Taraxacum tragopogon)
H. Kubát, K., Klíč ke květeně České republiky. 2002 (as Taraxacum tragopogon)
I. 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: 43-171. 1999 (as Taraxacum tragopogon)
J. 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: 43-171. 1999
K. Horn, K., Øllgaard, H., Sackwitz, P. & Uhlemann, I., Neue taxonomische Erkenntnisse zur Taraxacum-Flora (Asteraceae) Deutschlands. 1. Teil. Ergänzungen und Korrekturen zur Bearbeitung der Standardliste der Farn- und Blütenpflanzen Deutschlands in Berichte der Bayerischen Botanischen Gesellschaft zur Erforschung der heimischen Flora 73-74: 5-16. 2004 (as Taraxacum tragopogon)
L. Uhlemann I., Die Gattung Taraxacum (Asteraceae) im östlichen Deutschland in Mitt. Florist. Kart. Sachsen-Anhalt Sonderh. 2003. 2003 (as Taraxacum tragopogon)