Synthesis

Species description (Flora Helvetica 2018)

Unterscheidet sich von P. capillare durch folgende Merkmale: Blattscheiden kahl (bei P. capillare Scheiden und oft auch die Spreiten abstehend behaart), Rispenäste gebogen, die Ährchen längs der Äste verteilt (bei P. capillare nur in der äusseren Hälfte der Äste), 2,5-3 mm lang und 1 mm breit, die untere Hüllspelze 1/4-1/3 so lang wie das Ährchen, fein hautrandig.

Flowering period (Flora Helvetica 2018)

8-10

Habitat and distribution inside Switzerland (Flora Helvetica 2018)

Ufer, Maisfelder / kollin / M, JN u.a., in rascher Ausbreitung begriffen

Ecological indicator (Landolt & al. 2010)

2+34-34+2.t.2n=54
Panicum dichotomiflorum Michx., © Konrad Lauber
.

Distribution map

Simple

Before threshold year
After threshold year
Before and after threshold year

Advanced

Colors
Validated observations
Observations waiting for validation
Occurrences from Atlas Welten & Sutter (1982) and supplements (1984, 1994) without confirmation in the Info Flora database since
Symbols
Before threshold year
After threshold year
Native
Reintroduced
Not native / introduced / subspontaneous / escaped
Doubtful

Number of observations

Below the threshold number of observations
Above or equal the threshold number of observations

Nomenclature

Vernacular name

Deutscher Name:
Reisfeld-Hirse
Nom français:
Millet des rizières
Nome italiano:
Panico delle risaie

Match with other reference books

Relation Nom Book No
=Panicum dichotomiflorum Michx.Checklist 2017290400
=Panicum dichotomiflorum Michx.Flora Helvetica 20012803
=Panicum dichotomiflorum Michx.Flora Helvetica 20122983
=Panicum dichotomiflorum Michx.Flora Helvetica 20182983
=Panicum dichotomiflorum Michx.Index synonymique 1996290400
=Panicum dichotomiflorum Michx.Landolt 1991160
=Panicum dichotomiflorum Michx.SISF/ISFS 2290400

= The taxon corresponds to the accepted taxon (Checklist 2017)
< The taxon is included in the accepted taxon (Checklist 2017)
> The taxon includes (among others) also the accepted taxon (Checklist 2017)

Status

Native status   -  -

Ecology

Life form

Habitats

flora.fl.habitats_delarze

Less strictly linked to a specific habitat 8.2.3.3 - Kalkarmer, trockener Hackfruchtacker (Panico-Setarion)

bold Dominant species, influencing the appearance of the habitat
Character species Character species
Less strictly linked to a specific habitat Less strictly linked to a specific habitat

Ecological indicator values by Landolt & al. (2010)

flora.fl.val_ecologique_sol flora.fl.val_ecologique_climat flora.fl.val_ecologique_salinite
flora.fl.val_ecologique_H 2+ flora.fl.val_ecologique_L 3 flora.fl.val_ecologique_S --
flora.fl.val_ecologique_R 3 flora.fl.val_ecologique_T 4+
flora.fl.val_ecologique_N 4 flora.fl.val_ecologique_C 2
  • flora.fl.val_ecologique_legende
    flora.fl.val_ecologique_H
    1flora.fl.val_ecologique_H_1
    1+flora.fl.val_ecologique_H_1plus
    2flora.fl.val_ecologique_H_2
    2+flora.fl.val_ecologique_H_2plus
    3flora.fl.val_ecologique_H_3
    3+flora.fl.val_ecologique_H_3plus
    4flora.fl.val_ecologique_H_4
    4+flora.fl.val_ecologique_H_4plus
    5flora.fl.val_ecologique_H_5
    ^flora.fl.val_ecologique_H_f
    Uflora.fl.val_ecologique_H_u
    Vflora.fl.val_ecologique_H_v
    wflora.fl.val_ecologique_W_2
    w+flora.fl.val_ecologique_W_3
    flora.fl.val_ecologique_R
    1flora.fl.val_ecologique_R_1
    2flora.fl.val_ecologique_R_2
    3flora.fl.val_ecologique_R_3
    4flora.fl.val_ecologique_R_4
    5flora.fl.val_ecologique_R_5
    flora.fl.val_ecologique_N
    1flora.fl.val_ecologique_N_1
    2flora.fl.val_ecologique_N_2
    3flora.fl.val_ecologique_N_3
    4flora.fl.val_ecologique_N_4
    5flora.fl.val_ecologique_N_5
    flora.fl.val_ecologique_salinite
    1flora.fl.val_ecologique_salinite_s
    3flora.fl.val_ecologique_salinite_ss
    flora.fl.val_ecologique_L
    1flora.fl.val_ecologique_L_1
    2flora.fl.val_ecologique_L_2
    3flora.fl.val_ecologique_L_3
    4flora.fl.val_ecologique_L_4
    5flora.fl.val_ecologique_L_5
    flora.fl.val_ecologique_T
    1flora.fl.val_ecologique_T_1
    1+flora.fl.val_ecologique_T_1plus
    2flora.fl.val_ecologique_T_2
    2+flora.fl.val_ecologique_T_2plus
    3flora.fl.val_ecologique_T_3
    3+flora.fl.val_ecologique_T_3plus
    4flora.fl.val_ecologique_T_4
    4+flora.fl.val_ecologique_T_4plus
    5flora.fl.val_ecologique_T_5
    flora.fl.val_ecologique_C
    1flora.fl.val_ecologique_C_1
    2flora.fl.val_ecologique_C_2
    3flora.fl.val_ecologique_C_3
    4flora.fl.val_ecologique_C_4
    5flora.fl.val_ecologique_C_5

Anatomy

Images and descriptions (© Fritz H. Schweingruber & Hugo Berger)

text alt Stems, 100x
text alt Stems 400x

Summary of stem anatomy (German)

Umriss rund mit Rippen. Leitbündel in mehreren Reihen. Epidermiszellen verholzt.

Description

Culm-diameter 1-2 mm, wall thin, radius of culm in relation to wall thickness approximately 1:0.25 or < 0.25. Outline circular wavy. Culm-center hollow and surrounded by a few thin-walled, not lignified cells. Epidermis-cells thin-walled all around. Large vascular bundles arranged in 2-3 peripheral rows. Chlorenchyma very small in 1-3 lined-up cells. Sclerenchyma in a small, peripheral continuous belt (< 4 cells). Cells thick-walled. Sclerenchymatic sheath around vascular bundles large, 3 to x cells. Largest vessels in vascular bundles in lateral position. Largest vessel in the bundle small, < 20μm. Cavities (intercellulars) between parenchyma-cells present, small, often triangular. Distinct cavities (intercellulars) in the protoxylem area of vascular bundles.