species information (Systematics, BiolFlor-Names, Status) |
BiolFlor-Name |
family |
german name(s) |
Picris hieracioides L. s. l. |
Asteraceae » |
Gewöhnliches Bitterkraut
|
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) |
Picris hieracioides L. |
accepted |
Picris hieracioides agg. |
Synonym |
>Picris hieracioides subsp. grandiflora (Ten.) Arcang. |
accepted |
>Picris hieracioides subsp. paleacea (Vest) Domin & Podp. |
Synonym |
>Picris paleacea Vest |
Synonym |
>Picris grandiflora Ten. |
Basionym |
>Picris hieracioides subsp. hieracioides |
accepted |
>Picris hieracioides L., s. str. |
Synonym |
>Picris hieracioides subsp. villarsii (Jord.) Nyman |
accepted |
>Picris crepoides Saut. |
Synonym |
>Picris hieracioides subsp. crepoides (Saut.) Nyman |
Synonym |
>Picris hieracioides subsp. sonchoides (Vest) Thell. |
Synonym |
>Picris sonchoides Vest |
Synonym |
>Picris hieracioides subsp. auriculata (Sch. Bip.) Hayek |
accepted |
>Picris auriculata Sch. Bip. |
Basionym |
|
Chromosome number » |
Basic chromosome number |
5 |
Chromosome number 2n |
10 |
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 |
|
DNA content » |
DNA content (pg/2C) |
5.7 |
Chromosome number |
10 |
Quality |
chromosome number known and occurring in Germany [b] |
Authorised in BENNET & LEITCH 2001 |
False |
Reference |
Bennett, M.D., Smith, J.S. 1976: Nuclear DNA amounts in angiosperms. Philosophical Transactions of the Royal Society London B 274:227-274 |
DNA content (pg/2C) |
3.1 |
Chromosome number |
10 |
Quality |
chromosome number known and occurring in Germany [b] |
Authorised in BENNET & LEITCH 2001 |
True |
Reference |
Bennett, M.D., Smith, J.S. 1976: Nuclear DNA amounts in angiosperms. Philosophical Transactions of the Royal Society London B 274:227-274 |
|
Life form » |
Life form |
H (Hemicryptophyte) |
Qualifier |
always [1] |
Life span » |
Life span |
b (biennial) |
Qualifier |
sometimes [2] |
Life span |
p (pluriennial-pollakanthic) |
Qualifier |
always [1] |
Vegetative propagation » |
Vegetative propagation |
ws (Root shoot) |
Qualifier |
always [1] |
Storage organs » |
Storage organs |
rh (Rhizome) |
Qualifier |
always [1] |
Shoot metamorphoses » |
Shoot metamorphoses |
rh (Rhizome) |
Qualifier |
always [1] |
Root metamorphoses » |
Root metamorphoses |
ws (Root shoot) |
Qualifier |
always [1] |
Rosettes » |
Rosettes |
h (Hemirosette plant) |
Qualifier |
always [1] |
special references:
|
Hensen, I. 1997: Life strategies of xerothermic grasslands - mechanisms of reproduction and colonization within Stipetum capillatae s.l. and Adonido-Brachypodietum pinnati. Feddes Repertorium 108:425-452
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Verkaar, H.J., Schenkeveld, A.D. 1984: On the ecology of short-lived forbs in chalk grasslands: life history characteristics. New Phytologist 98:659-672
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Klemow, K.M., Raynal, D.J. 1985: Demography of two facultative biennial plant species in an unproductive habitat. Journal of Ecology 73:147-167
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Beijerinck, M.W. 1887: Beobachtungen und Betrachtungen über Wurzelknospen und Nebenwurzeln. Verh. Kon. Ned. Akad. Wetensch. , Afd. Natuurk. , Tweede Sect. 25:1-146
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Wittrock, V.B. 1884: Über Wurzelsprosse bei krautigen Gewächsen, mit besonderer Rücksicht auf ihre verschiedene biologische Bedeutung. Biol. Centralbl. 17:227-232
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Irmisch, T. 1851: Ueber die Dauer einiger Gewächse der deutschen Flora. Bot. Ztg. 9:361-366
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Kutschera, L., Lichtenegger, E. 1992: Wurzelatlas mitteleuropäischer Grünlandpflanzen. Bd. 2 Pteridophyta und Dicotyledonae (Magnoliopsida). Teil I Morphologie, Anatomie, Ökologie, Verbreitung, Soziologie, Wirtschaft. Fischer, Stuttgart, Jena, New York
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Raunkiaer, C. 1934: The life forms of plants and statistical plant geography. Oxford
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Salisbury, E. 1952: Downs and dunes. Their plant life and its environment. Bells & Sons, London
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Jäger, E.J. 1957: Über Wuchsform, Wuchsrhythmus und Verbreitung einheimischer Wiesenasteraceen. Dipl.-Arb. Univ. Halle.
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|
Flowering phenology » |
Begin of flowering (months) |
7 |
End of flowering (months) |
10 |
Duration of flowering (months) |
4 |
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 |
a (mostly sexual, rarely apomictic) |
Reference |
Gustafsson, A. 1946: Apomixis in higher plants. Lunds Universitets Årsskrift N. F.1-364 |
Type of apomixis » |
Type of apomixis |
u (unknown) |
Reference |
Gustafsson, A. 1946: Apomixis in higher plants. Lunds Universitets Årsskrift N. F.1-364 |
Dicliny » |
Dicliny |
so (hermaphroditic) |
Abundance |
always [1] |
Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
Dichogamy » |
Dichogamy |
a1 (slightly protandrous) |
Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
Self-sterility and self-incompatibility » |
Self-sterility and self-incompatibility |
SI (self-incompatibel) |
Reference |
Fryxell, P.M. 1957: Modes of reproduction of higher plants. The Botanical Review 23:135-233 |
Systematic reference |
species [S] |
SI mechanism » |
SI mechanism |
SSI (sporophytic self-incompatibility) |
Reference |
de Nettancourt, D. 1977: Incompatibility in angiosperms. Springer, Berlin |
Pollen vector » |
Pollen vector |
se (selfing) Pollen vector group: se (Selbstbestäubung) |
Abundance |
rare [4] |
Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
Systematic reference |
species [S] |
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] |
Breeding system » |
Breeding system |
X (allogamous) |
Reference |
Fryxell, P.M. 1957: Modes of reproduction of higher plants. The Botanical Review 23:135-233 |
Floral rewards » |
Floral rewards |
1 (nectar) |
Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
Amount of floral reward |
3 (present) |
Flower color » |
Flower colour |
golden yellow |
Basic flower colour |
g (yellow) |
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 |
5 (40-66 %) |
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 |
7.2b (flower heads, Asteraceae, only ray 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] |
|
Weight (mean) [mg] |
0.8 |
Weight (maximum) [mg] |
|
Measured object |
Diaspore |
Type of germinule or diaspore |
F (fruit) |
Constraint |
False |
Heteromorphic type |
n (not heteromorphic) |
Weight (minimum) [mg] |
|
Weight (mean) [mg] |
0.8 |
Weight (maximum) [mg] |
|
Measured object |
Diaspore |
Type of germinule or diaspore |
FZb (fruit with appendage) |
Constraint |
False |
Heteromorphic type |
n (not heteromorphic) |
Weight (minimum) [mg] |
|
Weight (mean) [mg] |
0.9 |
Weight (maximum) [mg] |
|
Sizes » |
Measured object |
Germinule |
Type of germinule or diaspore |
F (fruit) |
Constraint |
False |
Heteromorphic type |
n (not heteromorphic) |
Length (minimum) [mm] |
2.5 |
Length (mean) [mm] |
3.6 |
Length (maximum) [mm] |
6.0 |
Width (minimum) [mm] |
0.8 |
Width (mean) [mm] |
0.9 |
Width (maximum) [mm] |
1.0 |
Height (minimum) [mm] |
0.5 |
Height (mean) [mm] |
0.6 |
Height (maximum) [mm] |
0.8 |
Measured object |
Diaspore |
Type of germinule or diaspore |
F (fruit) |
Constraint |
False |
Heteromorphic type |
n (not heteromorphic) |
Length (minimum) [mm] |
2.5 |
Length (mean) [mm] |
3.6 |
Length (maximum) [mm] |
6.0 |
Width (minimum) [mm] |
0.8 |
Width (mean) [mm] |
0.9 |
Width (maximum) [mm] |
1.0 |
Height (minimum) [mm] |
0.5 |
Height (mean) [mm] |
0.6 |
Height (maximum) [mm] |
0.8 |
special references:
|
Brouwer, W., Stählin, A. 1955: Handbuch der Samenkunde. DLG-Verlag, Frankfurt/Main (Gattung)
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Hanf, M. 1984: Ackerunkräuter Europas mit ihren Keimlingen und Samen. . BLV Verlagsgesellschaft, München, Wien, Zürich. (Gattung)
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Heinisch, O. 1955: Samenatlas der wichtigsten Futterpflanzen und ihrer Unkräuter. Deutsche Akad. Landwirtsch.-Wiss., Berlin (Gattung)
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Grassland utilization indicator values » |
Occurrence |
N (fallow lands) |
Guild |
K (forb) |
Mowing tolerance |
5 (moderately tolerant to mowing) |
Grazing tolerance |
4 (between 3 and 5 (sensitive to moderately tolerant to grazing)) |
Trampling tolerance |
2 (between 1 and 3 (intolerant to sensitive to trampling)) |
Foraging value |
2 (no or little forage value) |
Foraging value for deer |
|
|
Habitat » |
Habitat |
T10.3.3.1 (null) Alliance: ???
|
Occurrence questionable |
False |
Occurence restricted |
False |
Annotation |
(a) |
Habitat |
T3.1.1 (null) Alliance: Adenostylion alliariae
|
Occurrence questionable |
False |
Occurence restricted |
False |
Annotation |
|
Habitat |
T5.1 (null) Alliance: Thlaspietea rotundifolii
|
Occurrence questionable |
False |
Occurence restricted |
False |
Annotation |
|
Habitat |
T6.2.2.3 (null) Alliance: Festucetalia valesiaca
|
Occurrence questionable |
False |
Occurence restricted |
False |
Annotation |
|
Habitat |
T7.1.2 (null) Alliance: Arrhenatherion
|
Occurrence questionable |
False |
Occurence restricted |
False |
Annotation |
|
Habitat |
T7.5.2.1 (null) Alliance: Convolvulo-Agropyrion repentis
|
Occurrence questionable |
False |
Occurence restricted |
False |
Annotation |
|
Habitat |
T8.2.2.2 (null) Alliance: Echio-Melilotion
|
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
|
English circumscription |
06.5 (Eusiberian ruderal mugwort and thistles communities, and couch-grasslands) Class: Artemisietea vulgaris
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