| species information (Systematics, BiolFlor-Names, Status) |
| BiolFlor-Name |
family |
german name(s) |
| Centaurea nigrescens Willd. |
Asteraceae » |
Schwärzliche Flockenblume
|
| 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 »
|
|
| Synonymy (taxonomy after Wisskirchen & Haeupler, 1998) |
| Centaurea nigrescens Willd. |
accepted |
| Jacea nigrescens (Willd.) Soják |
Synonym |
| Centaurea dubia subsp. nigrescens (Willd.) Hayek |
Synonym |
| >Centaurea nigrescens subsp. nigrescens |
accepted |
|
| Flowering phenology » |
| Begin of flowering (months) |
7 |
| End of flowering (months) |
9 |
| Duration of flowering (months) |
3 |
| Number of flowering phases |
0 |
| Symphenological Groups » |
| Phenological group |
0 (not available)
Phenological season: not available |
| Reference |
Dierschke, H 1995: Phänologische und symphänologische Artengruppen von Blütenpflanzen in Mitteleuropa. Tuexenia 15: 523-560 |
|
| Type of reproduction » |
| Type of reproduction |
ssv (mostly by seed, rarely vegetatively) |
| 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 |
6 (67-85 %) |
| UV reflection in the centre of the flower |
1 (0-7 %) |
| UV reflection pattern |
1 (UV reflectance pattern present) |
| 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 |
FZb (fruit with appendage) |
| Germinule type » |
| Heteromorphic type |
n (not heteromorphic) |
| Germinule type |
F (fruit) |
| Information available |
True |
| Development of nutritious appendages |
always [1] |
| Development of flat appendages |
|
| Development of elongated appendages |
sometimes [2] |
| Development of additional appendages |
|
| Heteromorphic type |
n (not heteromorphic) |
| Germinule type |
FZb (fruit with appendage) |
| Information available |
True |
| Development of nutritious appendages |
always [1] |
| Development of flat appendages |
|
| Development of elongated appendages |
sometimes [2] |
| 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] |
1.4 |
| Weight (mean) [mg] |
1.5 |
| Weight (maximum) [mg] |
1.5 |
| Sizes » |
| Measured object |
Germinule |
| Type of germinule or diaspore |
F (fruit) |
| Constraint |
False |
| Heteromorphic type |
n (not heteromorphic) |
| Length (minimum) [mm] |
3.0 |
| Length (mean) [mm] |
3.1 |
| Length (maximum) [mm] |
3.2 |
| Width (minimum) [mm] |
|
| Width (mean) [mm] |
1.5 |
| Width (maximum) [mm] |
|
| Height (minimum) [mm] |
0.8 |
| Height (mean) [mm] |
0.9 |
| Height (maximum) [mm] |
0.9 |
| special references:
|
| Grime, J.P., Mason, G., Curtis, A.V., Rodman, J., Band, S.R., Mowforth, M.A., Neal, A.M., Shaw, S. 1981: A comparative study of germination characteristics in a local flora. Journal of Ecology 69:1017-1069 (Gattung)
|
| Thompson, K., Band, S.R., Hodgson, J.G. 1993: Seed size and shape predict persistence in soil. Functional Ecology 7:236-241 (Gattung)
|
| Grime, J.P., Hodgson, J.G., Hunt, R. 1988: Comparative Plant Ecology. Unwin Hyman, London (Gattung)
|
| Bresinsky, A. 1963: Bau, Entwicklungsgeschichte und Inhaltsstoffe der Elaiosomen. Studien zur myrmekochoren Verbreitung von Samen und Früchten. Bibliotheca Botanica Vol. 126. (Gattung)
|
| Brouwer, W., Stählin, A. 1955: Handbuch der Samenkunde. DLG-Verlag, Frankfurt/Main (Gattung)
|
| Cremer, J., Partzsch, M., Zimmermann, M., Schwär, C., Goltz, H. 1991: Acker- und Gartenwildkräuter: ein Bestimmungsbuch. . Deutscher Landwirtschaftsverlag, Berlin. (Gattung)
|
| Dittrich, M. 1968: Morphologische Untersuchungen an den Früchten der Subtribus Cardueae-Centaureinae (Compositae). Willdenowia 5:67-107 (Gattung)
|
| Hanf, M. 1984: Ackerunkräuter Europas mit ihren Keimlingen und Samen. . BLV Verlagsgesellschaft, München, Wien, Zürich. (Gattung)
|
| Luftensteiner, H.W. 1982: Untersuchungen zur Verbreitungssbiologie von Pflanzengemeinschaften an vier Standorten in Niederösterreich. Bibliotheca Botanica 135:1-68 (Gattung)
|
| McDonald, A.W., Bakker, J.P., Vegelin, K. 1996: Seed bank classification and ist importance for the restoration of species-rich flood-meadows. Journal of Vegetation Science 7:157-164 (Gattung)
|
| Müller, P. 1955: Verbreitungsbiologie (Diasporologie) der Blütenpflanzen. Veröffentlichungen des Geobotanischen Institutes Rübel Zürich . Verlag Hans Huber, Bern. (Gattung)
|
| Salisbury, E.J. 1974: Seed size and mass in relation to environment. Proceedings of the Royal Society, London, Series B 186:83-88 (Gattung)
|
| Heinisch, O. 1955: Samenatlas der wichtigsten Futterpflanzen und ihrer Unkräuter. Deutsche Akad. Landwirtsch.-Wiss., Berlin (Gattung)
|
| Hensen, I., Kentrup, M. 1998: Teucrio botryos-Melicetum ciliatae (Traubegamander-Wimpergrasflur) - Lebensstrategien in einer xerothemen Fels-Pioniergesellschaft. Tuexenia 18:217-236 (Gattung)
|
|
| Grassland utilization indicator values » |
| Occurrence |
GE (little used grasslands) |
| Guild |
K (forb) |
| Mowing tolerance |
4 (between 3 and 5 (sensitive to moderately tolerant to mowing)) |
| Grazing tolerance |
2 (between 1 and 3 (intolerant to sensitive to grazing)) |
| Trampling tolerance |
2 (between 1 and 3 (intolerant to sensitive to trampling)) |
| Foraging value |
4 (between 3 and 5 (little to intermediate forage value)) |
| Foraging value for deer |
|
|
| Habitat » |
| Habitat |
T10.3 (null)
Alliance: ???
|
| Occurrence questionable |
False |
| Occurence restricted |
False |
| Annotation |
|
| Habitat |
T6.2.2.2.3 (null)
Alliance: Bromion erecti
|
| Occurrence questionable |
False |
| Occurence restricted |
False |
| Annotation |
|
| Habitat |
T7.1.2 (null)
Alliance: Arrhenatherion
|
| Occurrence questionable |
False |
| Occurence restricted |
False |
| Annotation |
|
| Habitat |
T7.3.2 (null)
Alliance: Molinion coeruleae p.p.
|
| Occurrence questionable |
False |
| Occurence restricted |
False |
| Annotation |
|
| Habitat |
T8.2 (null)
Alliance: ???
|
| Occurrence questionable |
False |
| Occurence restricted |
False |
| Annotation |
|
|
| Class » |
| English circumscription |
05.3 (Fescue-brome communities of dry and semi-dry grasslands)
Class: Festuco-Brometea
|
| English circumscription |
05.4 (Commercially used grasslands)
Class: Molinio-Arrhenatheretea
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