Thesium alpinum L.

Species description (© Flora Helvetica 2018)

10-50 cm hoch. Stängel zahlreich, bogig aufsteigend, wenig oder nicht verzweigt, am Grund nur ca. 1 mm dick. Ganze Pflanze kahl. Blätter lineal-lanzettlich, wechselständig, sitzend, 1-4 cm lang und 1-4 mm breit. Blütenstand eine schmale, einseitswendige Traube. Blüten mit dem unterständigen Fruchtknoten nur 2-4 mm lang, kurz gestielt. Perigonzipfel meist 4, innen weiss, aussen grün, nach der Blüte nur an der Spitze eingerollt und mind. so lang wie die Frucht. Jede Blüte mit 3 Hochblättern.

Flowering period (© Flora Helvetica 2018)

5-7

Habitat and distribution inside Switzerland (© Flora Helvetica 2018)

Trockene bis feuchte Wiesen / montan-alpin / A, M in Alpennähe, J

World distribution (© Flora Helvetica 2018)

Europäisch

Ecological indicator (© Landolt & al. 2010)

3w32-423.h.hp.2n=12

Status

IUCN status

 Least concern

National Priority

 K - no national priority

International responsibility

 K - none

Habitat and distribution inside Switzerland

A, M in Alpennähe, J

World distribution

Europäisch

Life form

Habitats

Ecological indicator values by © Landolt & al. (2010)

Soil factors		Climatic factors		Salinity tolerance
Humidity Value H	3w	Light Value L	4	Salinity Index	--
Reaction Value R	3	Temperature factor T	2
Nutriments value N	2	Continentality K	3

• Ecological values legend
  

  Humidity Value H
  1	very dry
  1+	dry
  2	moderatly dry
  2+	moist
  3	medium wet
  3+	wet
  4	very wet
  4+	soggy
  5	submerged or underwater
  f	plants living in running water
  u	mostly submerged plants
  v	partly submerged, partly floating plants
  w	humidity moderately variable (± scale of 1-2)
  w+	highly variable humidity (scale exceeding ± 2)

  Reaction Value R
  1	Very acid (pH 2.5-5.5)
  2	acid (pH 3.5-6.5)
  3	lightly acid to neutral (pH 4.5-7.5)
  4	neutral to basic (pH 5.5-8.5)
  5	basic (pH 6-5 -> 8.5

  Nutriments value N
  1	very low in nutrients
  2	low in nutriments
  3	medium-poor to medium-rich in nutrients
  4	rich in nutriments
  5	very rich in nutriments

  Salinity tolerance
  1	halotolerant
  3	halophyle

  Light Value L
  1	very shady
  2	shady
  3	lighted areas
  4	luminous
  5	highly luminous

  Temperature factor T
  1	alpine to nival stages (from the treeline to the snowline)
  1+	suprasubalpine and upper subalpine levels (pine and larch forests)
  2	subalpine level (coniferous forests without beeches up to the upper limit of spruces)
  2+	lower subalpine and upper mountain stages
  3	mountain level (beech and silver fir forests, in the central Alps Scots pine forests)
  3+	lower mountain and upper hill levels
  4	hill level (mixed deciduous oak forests)
  4+	hot places, hill level
  5	very hot places, hill level (only in the hottest places, typical of southern Europe)

  Continentality K
  1	Atlantic (high air humidity, very low temperature variations, mild winters)
  2	Sub-Atlantic (high air humidity, low temperature variations, relatively mild winters)
  3	sub-Atlantic to subcontinental (average air humidity, moderately variable temperature, slightly low winter temperatures)
  4	subcontinental (low air humidity, large temperature variations, rather cold winters)
  5	continental (very low air humidity, very large temperature variations, cold winters)

Match with other reference books

Relation	Nom	Book	No
=	Thesium alpinum L.	Checklist 2017	417200
=	Thesium alpinum L.	Flora Helvetica 2001	1297
=	Thesium alpinum L.	Flora Helvetica 2012	1093
=	Thesium alpinum L.	Flora Helvetica 2018	1093
=	Thesium alpinum L.	Index synonymique 1996	417200
=	Thesium alpinum L.	Landolt 1977	860
=	Thesium alpinum L.	Landolt 1991	752
=	Thesium alpinum L.	SISF/ISFS 2	417200
=	Thesium alpinum L.	Welten & Sutter 1982	156

Status on regional Red List 2019

Biogregraphic regions	Status	IUCN criteria
Jura (JU)	LC
Mittelland (MP)	VU	C2a(i)
Alpennordflanke (NA)	LC
Alpensüdflanke (SA)	LC
Östliche Zentralalpen (EA)	LC
Westliche Zentralalpen (WA)	LC

• Legend
  

  EX	Extinct
  RE	Regionally Extinct
  CR(PE)	Critically Endangered, Probably Extinct
  CR	Critically Endangered
  EN	Endangered
  VU	Vulnerable
  NT	Near Threatened
  LC	Least Concern