Synthesis

Species description (Flora Helvetica 2018)

Vollständig untergetauchte, wurzelnde, 5-40 cm hohe Wasserpflanze, gabelig verzweigt, steif und brüchig. Blätter gegenständig, 0,5-3 cm lang, max. 0,5 mm breit, zurückgebogen, beidseits mit 5-17 nach vorn gerichteten Zähnchen. Pflanze einhäusig. Blüten sehr klein, einzeln in den Blattwinkeln, ohne Kelch und Krone, männliche mit einem Staubblatt, weibliche mit einem Fruchtblatt. Frucht 2-3 mm lang und ca. 0,5 mm dick.

Flowering period (Flora Helvetica 2018)

7-8

Habitat and distribution inside Switzerland (Flora Helvetica 2018)

Stehende oder langsam fliessende, bis 1,5 m tiefe, warme und nährstoffreiche Gewässer mit schlammigem Grund / kollin / M, südliches TI

Ecological indicator (Landolt & al. 2010)

5u42+34+2.t.2n=24
Najas minor All., © 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:
Kleines Nixenkraut
Nom français:
Petite naïade
Nome italiano:
Ranocchina minore

Match with other reference books

Relation Nom Book No
=Najas minor All.Checklist 2017268500
=Najas minor All.Flora Helvetica 20012416
=Najas minor All.Flora Helvetica 20122374
=Najas minor All.Flora Helvetica 20182374
=Najas minor All.Index synonymique 1996268500
=Najas minor All.Landolt 1977137
=Najas minor All.Landolt 1991131
=Najas minor All.SISF/ISFS 2268500
=Najas minor All.Welten & Sutter 19822055

= 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   -  -

Status on national Red List 2016

flora.fl.statut_iucn:   Endangered

LC: Non menacé

flora.fl.complementary_informations

IUCN criteria: C2a(i)

  • Legend
    EXExtinct
    RERegionally Extinct
    CR(PE)Critically Endangered, Probably Extinct
    CRCritically Endangered
    ENEndangered
    VUVulnerable
    NTNear Threatened
    LCLeast Concern

IUCN list of endangered species (Walter & Gillett 1997)

No

flora.fl.prio_title

flora.fl.prio_priority 3 - medium national priority
flora.fl.prio_measures 2 -
flora.fl.prio_responsability 1 - weak
flora.fl.prio_monitor 1 -

Protection status

International (Bern Convention) No
GE (25.07.2007)
Switzerland --
VD (02.03.2005)

Ecology

Life form

Habitats

flora.fl.habitats_delarze

NO INFORMATION

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 5u flora.fl.val_ecologique_L 3 flora.fl.val_ecologique_S 1
flora.fl.val_ecologique_R 4 flora.fl.val_ecologique_T 4+
flora.fl.val_ecologique_N 2 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