| species information (Systematics, BiolFlor-Names, Status) |
| BiolFlor-Name |
family |
german name(s) |
| Digitaria ischaemum (Schreb. ex Schweigg.) Schreb. ex Muhl. |
Poaceae » |
Faden-Hirse
Faden-Fingerhirse
|
| 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) |
| Digitaria ischaemum (Schreb. ex Schweigg.) Schreb. ex Mühl. |
accepted |
| Digitaria humifusa Rich. |
Synonym |
| Digitaria linearis Crép., non Pers. 1805, nom. illeg. |
Synonym |
| Panicum ischaemum Schreb. ex Schweigg. |
Basionym |
| Panicum lineare Krock. |
Synonym |
| Syntherisma glabrum Schrad. |
Synonym |
|
| Chromosome number » |
| Basic chromosome number |
9 |
| Chromosome number 2n |
36 |
| Chromosome number (Germany) |
True |
| Most common chromosome race |
False |
| Ploidy level |
4 (tetraploid) |
| Ploidy type |
P (polyploid with haploid basic number) |
| Reference |
Oberdorfer, E. 1983: Pflanzensoziologische Exkursionsflora. Ulmer, Stuttgart |
|
| 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 |
s (amphimictic, sexual) |
| Reference |
Anmerkung 2002: Sexuelle Samenproduktion, da keine Apomikten in Gattung bekannt |
| Dicliny » |
| Dicliny |
so (hermaphroditic) |
| Abundance |
always [1] |
| Reference |
Connor, H.E. 1979: Breeding system in the grasses: a survey. New Zealand Journal of Botany 17:547-574 |
| Pollen vector » |
| Pollen vector |
wi (wind)
Pollen vector group: ab (abiotische Bestäubung) |
| Abundance |
the rule [2] |
| Reference |
Frank, D., Klotz, S. 1990: Biologisch-ökologische Daten zur Flora der DDR. Wissenschaftliche Beiträge Martin-Luther Univ. Halle-Wittenberg Vol. 32 (P41) |
| Systematic reference |
family [F] |
| Flower class after MUELLER » |
| Flower class after MUELLER |
W (wind flowers)
Typical pollinators: - |
| Flower type after KUGLER » |
| Flower type after KUGLER |
0 (not applicable) |
|
| Fruit type » |
| Fruit type |
Nu (nut) |
| Diaspore type » |
| Diaspore type |
TFSt (part of infructescence) |
| 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 |
|
| Heteromorphic type |
n (not heteromorphic) |
| Germinule type |
TFSt (part of infructescence) |
| Information available |
True |
| Development of nutritious appendages |
|
| Development of flat appendages |
|
| Development of elongated appendages |
sometimes [2] |
| Development of additional appendages |
always [1] |
| Weights » |
| Measured object |
Germinule |
| Type of germinule or diaspore |
TFSt (part of infructescence) |
| Constraint |
False |
| Heteromorphic type |
n (not heteromorphic) |
| Weight (minimum) [mg] |
|
| Weight (mean) [mg] |
0.7 |
| Weight (maximum) [mg] |
|
| Measured object |
Diaspore |
| Type of germinule or diaspore |
TFSt (part of infructescence) |
| Constraint |
False |
| Heteromorphic type |
n (not heteromorphic) |
| Weight (minimum) [mg] |
|
| Weight (mean) [mg] |
0.7 |
| Weight (maximum) [mg] |
|
| Sizes » |
| Measured object |
Germinule |
| Type of germinule or diaspore |
F (fruit) |
| Constraint |
False |
| Heteromorphic type |
n (not heteromorphic) |
| Length (minimum) [mm] |
1.5 |
| Length (mean) [mm] |
1.8 |
| Length (maximum) [mm] |
2.0 |
| Width (minimum) [mm] |
|
| Width (mean) [mm] |
|
| Width (maximum) [mm] |
|
| Height (minimum) [mm] |
|
| Height (mean) [mm] |
|
| Height (maximum) [mm] |
|
| Measured object |
Diaspore |
| Type of germinule or diaspore |
TFSt (part of infructescence) |
| Constraint |
False |
| Heteromorphic type |
n (not heteromorphic) |
| Length (minimum) [mm] |
2.0 |
| Length (mean) [mm] |
2.3 |
| Length (maximum) [mm] |
2.8 |
| Width (minimum) [mm] |
0.8 |
| Width (mean) [mm] |
0.9 |
| Width (maximum) [mm] |
1.0 |
| Height (minimum) [mm] |
|
| Height (mean) [mm] |
|
| Height (maximum) [mm] |
|
| Measured object |
Germinule |
| Type of germinule or diaspore |
TFSt (part of infructescence) |
| Constraint |
False |
| Heteromorphic type |
n (not heteromorphic) |
| Length (minimum) [mm] |
2.0 |
| Length (mean) [mm] |
2.3 |
| Length (maximum) [mm] |
2.8 |
| Width (minimum) [mm] |
0.8 |
| Width (mean) [mm] |
0.9 |
| Width (maximum) [mm] |
1.0 |
| Height (minimum) [mm] |
|
| Height (mean) [mm] |
|
| Height (maximum) [mm] |
|
| special references:
|
| 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)
|
| Endtmann, K.J. 1976: Zur Determination und Verbreitung der "Hirse"-Arten (Panicum s.l.) im Norden der DDR. Gleditschia 4:75-81 (Gattung)
|
| Häfliger, T.J., Scholz, H. 1981: Grass weeds. Documenta CIBA-GEIGY Ltd., Basel (Gattung)
|
|
| Habitat » |
| Habitat |
L3.3.7.3 (null)
Alliance: ???
|
| Occurrence questionable |
False |
| Occurence restricted |
False |
| Annotation |
|
| Habitat |
T7.4.2 (null)
Alliance: Polygono-Poetea annuae
|
| Occurrence questionable |
False |
| Occurence restricted |
False |
| Annotation |
|
|
| Class » |
| English circumscription |
06.3 (Communities of annual trampling resistent plants)
Class: Polygono arenastri-Poetea annuae
|
| English circumscription |
06.4 (Annual ruderal communities)
Class: Sisymbrietea officinalis
|
| English circumscription |
06.6 (Chickweed and other field weed communities)
Class: Stellarietea mediae
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