species information (Systematics, BiolFlor-Names, Status) |
BiolFlor-Name |
family |
german name(s) |
Onopordum acanthium L. |
Asteraceae » |
Gewöhnliche Eselsdistel
|
reference |
Kühn, I., Klotz, S. 2002: Systematik, Taxonomie und Nomenklatur. In: Klotz, S., Kühn, I., Durka, W. (Hrsg.): BIOLFLOR - Eine Datenbank mit biologisch-ökologischen Merkmalen zur Flora von Deutschland. Schriftenreihe für Vegetationskunde. Bonn »
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Synonymy (taxonomy after Wisskirchen & Haeupler, 1998) |
Onopordum acanthium L. |
accepted |
|
DNA content » |
DNA content (pg/2C) |
2.7 |
Chromosome number |
34 |
Quality |
chromosome number known and occurring in Germany [b] |
Authorised in BENNET & LEITCH 2001 |
True |
Reference |
Bennett, M.D., Smith, J.P., Heslop-Harrison, J.S. 1982: Nuclear DNA amounts in angiosperms. Proceedings of the Royal Society London. Series B 216:179-199 |
|
Flowering phenology » |
Begin of flowering (months) |
7 |
End of flowering (months) |
8 |
Duration of flowering (months) |
2 |
Number of flowering phases |
0 |
Symphenological Groups » |
Phenological group |
8 (Clematis vitalba-Galium sylvaticum-Phase) Phenological season: midsummer |
Reference |
Dierschke, H 1995: Phänologische und symphänologische Artengruppen von Blütenpflanzen in Mitteleuropa. Tuexenia 15: 523-560 |
|
Type of reproduction » |
Type of reproduction |
s (by seed/by spore) |
Reference |
Krumbiegel, A. 2002: Morphologie der vegetativen Organe (außer Blätter). In: Klotz, S., Kühn, I., Durka, W. (Hrsg.) BiolFlor - Biologisch-ökologische Daten zur Flora Deutschlands, S. 1-2, Bonn |
Type of seed production » |
Type of seed production |
s (amphimictic, sexual) |
Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
Dicliny » |
Dicliny |
so (hermaphroditic) |
Abundance |
always [1] |
Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
Dichogamy » |
Dichogamy |
a2 (protandrous) |
Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
Pollen vector » |
Pollen vector |
in (insects) Pollen vector group: zo (Tierbestäubung) |
Abundance |
the rule [2] |
Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
Systematic reference |
species [S] |
Floral rewards » |
Floral rewards |
1 (nectar) |
Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
Amount of floral reward |
3 (present) |
Flower color » |
Flower colour |
purple red |
Basic flower colour |
pu (purple) |
Reference |
Schubert, R., Jäger, E.J., Werner, K. (Hrsg.) 1987: Exkursionsflora Band 3. Atlas der Gefäßpflanzen. 6. Aufl., Volk und Wissen, Berlin |
UV reflection of the flower » |
UV reflection in the periphery of the flower |
1 (0-7 %) |
UV reflection in the centre of the flower |
1 (0-7 %) |
UV reflection pattern |
0 (no UV reflectance patterns) |
Flower class after MUELLER » |
Flower class after MUELLER |
B` (flower associations with totally hidden nectar) Typical pollinators: bees, bumble bees, wasps, bombylides, syrphids |
Flower type after KUGLER » |
Flower type after KUGLER |
7.2a (flower heads, Asteraceae, only disk flowers) |
|
Fruit type » |
Fruit type |
Nu (nut) |
Diaspore type » |
Diaspore type |
F (fruit) |
Diaspore type |
FZb (fruit with appendage) |
Germinule type » |
Heteromorphic type |
n (not heteromorphic) |
Germinule type |
F (fruit) |
Information available |
True |
Development of nutritious appendages |
|
Development of flat appendages |
|
Development of elongated appendages |
|
Development of additional appendages |
|
Weights » |
Measured object |
Germinule |
Type of germinule or diaspore |
F (fruit) |
Constraint |
False |
Heteromorphic type |
n (not heteromorphic) |
Weight (minimum) [mg] |
11.1 |
Weight (mean) [mg] |
11.9 |
Weight (maximum) [mg] |
12.6 |
Measured object |
Diaspore |
Type of germinule or diaspore |
F (fruit) |
Constraint |
False |
Heteromorphic type |
n (not heteromorphic) |
Weight (minimum) [mg] |
11.1 |
Weight (mean) [mg] |
11.9 |
Weight (maximum) [mg] |
12.6 |
Sizes » |
Measured object |
Germinule |
Type of germinule or diaspore |
F (fruit) |
Constraint |
False |
Heteromorphic type |
n (not heteromorphic) |
Length (minimum) [mm] |
4.0 |
Length (mean) [mm] |
5.2 |
Length (maximum) [mm] |
6.0 |
Width (minimum) [mm] |
2.5 |
Width (mean) [mm] |
2.7 |
Width (maximum) [mm] |
3.0 |
Height (minimum) [mm] |
1.2 |
Height (mean) [mm] |
1.6 |
Height (maximum) [mm] |
2.5 |
Measured object |
Diaspore |
Type of germinule or diaspore |
F (fruit) |
Constraint |
False |
Heteromorphic type |
n (not heteromorphic) |
Length (minimum) [mm] |
4.0 |
Length (mean) [mm] |
5.2 |
Length (maximum) [mm] |
6.0 |
Width (minimum) [mm] |
2.5 |
Width (mean) [mm] |
2.7 |
Width (maximum) [mm] |
3.0 |
Height (minimum) [mm] |
1.2 |
Height (mean) [mm] |
1.6 |
Height (maximum) [mm] |
2.5 |
special references:
|
Brouwer, W., Stählin, A. 1955: Handbuch der Samenkunde. DLG-Verlag, Frankfurt/Main (Gattung)
|
Frey, W., Hauser, A. 1996: Onopordetum acanthii (Eselsdistel-Gesellschaft) im mittleren und unteren Unstruttal - Lebensstrategien in einer wärmeliebenden Ruderalgesellschaft. Hausknechtia, Beiheft 6:1-84 (Gattung)
|
Hanf, M. 1984: Ackerunkräuter Europas mit ihren Keimlingen und Samen. . BLV Verlagsgesellschaft, München, Wien, Zürich. (Gattung)
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Habitat » |
Habitat |
T10.3.1.2 (null) Alliance: ???
|
Occurrence questionable |
False |
Occurence restricted |
False |
Annotation |
|
Habitat |
T8.2.2.5 (null) Alliance: Onopordion acanthii
|
Occurrence questionable |
False |
Occurence restricted |
False |
Annotation |
|
|
Class » |
English circumscription |
06.5 (Eusiberian ruderal mugwort and thistles communities, and couch-grasslands) Class: Artemisietea vulgaris
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