species information (Systematics, BiolFlor-Names, Status) |
BiolFlor-Name |
family |
german name(s) |
Thlaspi arvense L. |
Brassicaceae » |
Acker-Hellerkraut
|
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) |
Thlaspi arvense L. |
accepted |
|
Chromosome number » |
Basic chromosome number |
7 |
Chromosome number 2n |
14 |
Chromosome number (Germany) |
True |
Most common chromosome race |
False |
Ploidy level |
2 (diploid) |
Ploidy type |
D (diploid with haploid basic number) |
Reference |
Oberdorfer, E. 1983: Pflanzensoziologische Exkursionsflora. Ulmer, Stuttgart |
|
Life form » |
Life form |
H (Hemicryptophyte) |
Qualifier |
always [1] |
Life form |
T (Therophyte) |
Qualifier |
always [1] |
Life span » |
Life span |
a (annual) |
Qualifier |
always [1] |
Rosettes » |
Rosettes |
h (Hemirosette plant) |
Qualifier |
always [1] |
special references:
|
Best, K.F., McIntyre, G.I. 1975: The biology of Canadian weeds. 9. Thlaspi arvense L.. Canadian Journal of Plant Science 55:279-292
|
Hensen, I., Kentrup, M. 1998: Teucrio botryos-Melicetum ciliatae (Traubegamander-Wimpergrasflur) - Lebensstrategien in einer xerothemen Fels-Pioniergesellschaft. Tuexenia 18:217-236
|
|
Flowering phenology » |
Begin of flowering (months) |
4 |
End of flowering (months) |
8 |
Duration of flowering (months) |
5 |
Number of flowering phases |
0 |
Symphenological Groups » |
Phenological group |
1 (Corylus-Leucojum-Phase) Phenological season: pre-spring |
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 |
Best, K.F., McIntyre, G.I. 1975: The biology of Canadian weeds. 9. Thlaspi arvense L.. Canadian Journal of Plant Science 55:279-292 |
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 |
g1 (slightly protogynous) |
Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
Dichogamy |
h (homogamous) |
Reference |
Bateman, A.J. 1955: Self-incompatibility systems in angiosperms. III. Cruciferae. Heredity 9:53-68 |
Self-sterility and self-incompatibility » |
Self-sterility and self-incompatibility |
SC (self-compatibel) |
Reference |
Bateman, A.J. 1955: Self-incompatibility systems in angiosperms. III. Cruciferae. Heredity 9:53-68 |
Systematic reference |
species [S] |
Pollen vector » |
Pollen vector |
se (selfing) Pollen vector group: se (Selbstbestäubung) |
Abundance |
the rule [2] |
Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
Systematic reference |
species [S] |
Pollen vector |
kl (cleistogamy) Pollen vector group: se (Selbstbestäubung) |
Abundance |
possible [5] |
Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
Systematic reference |
species [S] |
Pollen vector |
in (insects) Pollen vector group: zo (Tierbestäubung) |
Abundance |
possible [5] |
Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
Systematic reference |
species [S] |
Breeding system » |
Breeding system |
AO (autogamous) |
Reference |
Best, K.F., McIntyre, G.I. 1975: The biology of Canadian weeds. 9. Thlaspi arvense L.. Canadian Journal of Plant Science 55:279-292 |
P/O ratio » |
P/O ratio |
755.0 |
Reference |
Cruden, R.W. 1977: Pollen-ovule ratios: a conservative indicator of breeding systems in flowering plants. Evolution 31:32-46 |
Floral rewards » |
Floral rewards |
1 (nectar) |
Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
Amount of floral reward |
3 (present) |
Flower color » |
Flower colour |
white |
Basic flower colour |
w (white) |
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 |
2 (8-15 %) |
UV reflection in the centre of the flower |
2 (8-15 %) |
UV reflection pattern |
0 (no UV reflectance patterns) |
Flower class after MUELLER » |
Flower class after MUELLER |
AB (flowers with partly hidden nectar) Typical pollinators: syrphids, bees |
Flower type after KUGLER » |
Flower type after KUGLER |
1.2bb (disk flowers with nectar ± hidden nectaries at base of stamens) |
|
Fruit type » |
Fruit type |
Sch (siliqua) |
Diaspore type » |
Diaspore type |
S (seed) |
Germinule type » |
Heteromorphic type |
n (not heteromorphic) |
Germinule type |
S (seed) |
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 |
S (seed) |
Constraint |
False |
Heteromorphic type |
n (not heteromorphic) |
Weight (minimum) [mg] |
1.0 |
Weight (mean) [mg] |
1.2 |
Weight (maximum) [mg] |
1.6 |
Measured object |
Diaspore |
Type of germinule or diaspore |
S (seed) |
Constraint |
False |
Heteromorphic type |
n (not heteromorphic) |
Weight (minimum) [mg] |
1.0 |
Weight (mean) [mg] |
1.2 |
Weight (maximum) [mg] |
1.6 |
Sizes » |
Measured object |
Germinule |
Type of germinule or diaspore |
S (seed) |
Constraint |
False |
Heteromorphic type |
n (not heteromorphic) |
Length (minimum) [mm] |
1.4 |
Length (mean) [mm] |
1.9 |
Length (maximum) [mm] |
2.3 |
Width (minimum) [mm] |
1.1 |
Width (mean) [mm] |
1.4 |
Width (maximum) [mm] |
1.7 |
Height (minimum) [mm] |
0.6 |
Height (mean) [mm] |
0.8 |
Height (maximum) [mm] |
1.0 |
Measured object |
Diaspore |
Type of germinule or diaspore |
S (seed) |
Constraint |
False |
Heteromorphic type |
n (not heteromorphic) |
Length (minimum) [mm] |
1.4 |
Length (mean) [mm] |
1.9 |
Length (maximum) [mm] |
2.3 |
Width (minimum) [mm] |
1.1 |
Width (mean) [mm] |
1.4 |
Width (maximum) [mm] |
1.7 |
Height (minimum) [mm] |
0.6 |
Height (mean) [mm] |
0.8 |
Height (maximum) [mm] |
1.0 |
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)
|
Briemle, G. 1996: Farbatlas Kräuter und Gräser. Ulmer, Stuttgart (Gattung)
|
Bakker, J.P., Bakker, E.S., Rosén, E., Verweij, G.L. 1997: The soil seed bank of undisturbed and disturbed dry limestone grassland on Öland (Sweden). Z. Ökologie Nat. sch. 6:9-18 (Gattung)
|
Beijerink, W. 1947: Zadenatlas der Nederlandsche Flora. Biol. Stat. Wijster, Wageningen (Gattung)
|
Berggren, G. 1981: Atlas of seeds and small fruits of Northwest-European plant species with morphological descriptions. - Part 3 (Salicaceae-Cruciferaceae). Swedish Museum of Natural History, Stockholm (Gattung)
|
Böttner, I., Frey, W., Hensen, I. 1997: Carex humilis-Gesellschaft im unteren Unstruttal (mitteldeutsches Trockengebiet) - Lebensstrategien einer xerothermen Vegetationseinheit. Feddes Repertorium 108:7; 583-8; 602 (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)
|
Häfliger, T.J., Wolf, M. 1988: Dicot Weeds. Documenta CIBA-GEIGY Ltd., Basel (Gattung)
|
Luftensteiner, H.W. 1982: Untersuchungen zur Verbreitungssbiologie von Pflanzengemeinschaften an vier Standorten in Niederösterreich. Bibliotheca Botanica 135:1-68 (Gattung)
|
Vogler, P. 1901: Ueber die Verbreitungsmittel der schweizerischen Alpenpflanzen. Flora 89 (Ergänzungsband zum Jg.1901):1-137 (Gattung)
|
|
Grassland utilization indicator values » |
Occurrence |
A (arable fields and gardens) |
Guild |
K (forb) |
Mowing tolerance |
3 (sensitive to mowing) |
Grazing tolerance |
6 (between 5 and 7 (moderately tolerant to well tolerant to grazing)) |
Trampling tolerance |
3 (sensitive to trampling) |
Foraging value |
2 (no or little forage value) |
Foraging value for deer |
|
|
Habitat » |
Habitat |
T8.3.1 (null) Alliance: Sisymbrion
|
Occurrence questionable |
False |
Occurence restricted |
False |
Annotation |
|
Habitat |
T9.1 (null) Alliance: Violenea arvensis
|
Occurrence questionable |
False |
Occurence restricted |
False |
Annotation |
|
Habitat |
T9.1.2.1 (null) Alliance: Fumario-Euphorbion
|
Occurrence questionable |
False |
Occurence restricted |
False |
Annotation |
|
|
Class » |
English circumscription |
06.4 (Annual ruderal communities) Class: Sisymbrietea officinalis
|
English circumscription |
06.6 (Chickweed and other field weed communities) Class: Stellarietea mediae
|
|
|
|
Display of complete information for the selected species. Only traits available for the selected species are displayed.
|