Synthesis

Species description (Flora Helvetica 2018)

Ähnlich wie T. cespitosum, aber nur 3-12 cm hoch, durch unterirdische Ausläufer lockerrasig, Stängel einzeln oder in Büscheln, aber nicht Horste bildend, grundständige Blattscheiden nicht glänzend, die oberste der Spreite gegenüber nicht ausgeschnitten (bei T. cespitosum mit ca. 1 mm tiefem Ausschnitt), Ähre nur 2-4 mm lang, 1-4blütig, Perigonborsten 3, max. 0,2 mm lang, oder fehlend, Frucht dunkelbraun, 1,5-2 mm lang.

Flowering period (Flora Helvetica 2018)

7

Habitat and distribution inside Switzerland (Flora Helvetica 2018)

Feuchte Rasen, Alluvionen / subalpin-alpin / GR, VS (Südkette)

Ecological indicator (Landolt & al. 2010)

4w+42-41+4.h.2n=?
.

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:
Zwerg-Haarried, Zwerg-Haarbinse, Zwerg-Haargras
Nom français:
Trichophore nain
Nome italiano:
Tricoforo minore

Match with other reference books

Relation Nom Book No
=Trichophorum pumilum (Vahl) Schinz & Thell.Checklist 2017424100
=Trichophorum pumilum (Vahl) Schinz & Thell.Flora Helvetica 20012480
=Trichophorum pumilum (Vahl) Schinz & Thell.Flora Helvetica 20122656
=Trichophorum pumilum (Vahl) Schinz & Thell.Flora Helvetica 20182656
=Trichophorum pumilum (Vahl) Schinz & Thell.Index synonymique 1996424100
=Trichophorum pumilum (Vahl) Schinz & Thell.Landolt 1977428
=Trichophorum pumilum (Vahl) Schinz & Thell.Landolt 1991376
=Trichophorum pumilum (Vahl) Schinz & Thell.SISF/ISFS 2424100
=Trichophorum pumilum (Vahl) Schinz & Thell.Welten & Sutter 19822395

= 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:   Near threatened

LC: Non menacé

flora.fl.complementary_informations

IUCN criteria: A2c

  • 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 --
flora.fl.prio_measures --
flora.fl.prio_responsability --
flora.fl.prio_monitor --

Protection status

International (Bern Convention) No
TG (29.03.1994)
Switzerland --

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 4w+ flora.fl.val_ecologique_L 4 flora.fl.val_ecologique_S --
flora.fl.val_ecologique_R 4 flora.fl.val_ecologique_T 1+
flora.fl.val_ecologique_N 2 flora.fl.val_ecologique_C 4
  • 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 Leaves, 100x
text alt Leaves, 400x
text alt Stems, 100x
text alt Stems 400x

Summary of leaf anatomy (German)

Umriss rund oder oval. Leitbündel in einer Reihe. Rechteckige Stützen. Epidermiszellen aussen verholzt.

Summary of stem anatomy (German)

Umriss rund oder oval. Leitbündel in einer Reihe. Rechteckige Stützen. Epidermiszellen aussen verholzt.

Description

Culm-diameter 0.5-1 mm, center full, radius of culm in relation to wall thickness 1:1. Outline circular with a smooth surface. Culm-center full, containing unlignified cells. Epidermis cells inside thin, peripheral thicker-walled (lignified). Guard cells externally rounded off. Large vascular bundles arranged in one peripheral row. Chlorenchyma present, continuous peripheral belt with unlignified round cells (like a large cortex). Sclerenchyma belt absent. Groups of sclerenchyma square or rectangular. Vascular bundles collateral closed. Sclerenchymatic sheath around vascular bundles circular large, 3 to x cells. Vessels arrangement in vascular bundles in lateral position. Largest vessel in the bundle small, < 20μm. Cavities (intercellulars) between parenchyma-cells small, often triangular. Distinct cavities (intercellulars) in the protoxylem area of vascular bundles. Crystals absent.