Broken herbs

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Broken herbs
Bald hernia (Herniaria glabra)

Bald hernia ( Herniaria glabra )

Systematics
Eudicotyledons
Nuclear eudicotyledons
Order : Clove-like (Caryophyllales)
Family : Carnation family (Caryophyllaceae)
Subfamily : Paronychioideae
Genre : Broken herbs
Scientific name
Herniaria
L.

The herniaria ( Herniaria ) are a genus within the family of the Pink family (Caryophyllaceae). The 30 to 45 species are distributed in Europe and from the Mediterranean region to West and Central Asia.

Origin of name

The common name of broken herb comes from its earlier use as a medicine for abdominal hernias. Because of their diuretic effect, they were also called urinary herbs .

description

Illustration of the bald hernia ( Herniaria glabra )

Vegetative characteristics

Broken herb species are annual to perennial herbaceous plants . The strongly branched stems grow flat along the ground. The growth of the stem and the leaves is quite characteristic of most species: The actually opposite leaves are twisted so that they sit on the two flanks of the stem, so that an apparently two-line leaf position is created. Of the two opposite leaves, one on each side of the stem is greatly reduced. A side shoot forms in the axilla of this reduced leaf. Stipules are present.

Generative characteristics

The sessile flowers are clustered in clusters in the axils of the reduced leaves. The tiny, inconspicuous and greenish flowers are four or mostly five-fold with a double flower envelope . The usually five greenish or whitish sepals are 0.5 to 1.5 mm in size. Most of the five petals are tiny and often missing. There are (rarely two to) usually four to five fertile stamens and five staminodes . The two thread-like styluses are 0.1 to 0.4 mm long.

They form solitary nut fruits . The shiny, smooth seeds are dark brown or black.

Systematics and distribution

The genus Herniaria belongs to the tribe Paronychieae in the subfamily Paronychioideae within the family Caryophyllaceae and was previously classified in the family Illecebraceae.

The 30 to 45 break herb species ( Herniaria ) are naturally widespread in the Mediterranean and in the temperate areas of West and Central Asia and Europe as far as Scandinavia . Some species are neophytes in the temperate areas of the world.

Here only the species found in Europe or the Mediterranean area:

Alpine break herb ( Herniaria alpina )
Hairy broken herb ( Herniaria hirsuta )

swell

  • John W. Thieret, Ronald L. Hartman, Richard K. Rabeler: Herniaria in Flora of Pakistan , Volume 5: Online.
  • Lu Dequan & Michael G. Gilbert: Herniaria , p. 3 - the same text online as the printed work , In: Wu Zhengyi, Peter H. Raven & Deyuan Hong (Eds.): Flora of China , Volume 6 - Caryophyllaceae through Lardizabalaceae , Science Press and Missouri Botanical Garden Press, Beijing and St. Louis, 2001. ISBN 1-930723-05-9 (Description and Distribution Section)

Individual evidence

  1. a b c d e Lu Dequan & Michael G. Gilbert: Herniaria , p. 3 - online with the same text as the printed work , In: Wu Zhengyi, Peter H. Raven & Deyuan Hong (eds.): Flora of China , Volume 6 - Caryophyllaceae through Lardizabalaceae , Science Press and Missouri Botanical Garden Press, Beijing and St. Louis, 2001. ISBN 1-930723-05-9
  2. Herniaria in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved December 19, 2013.
  3. a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj K. Marhold, 2011: Caryophyllaceae. Herniaria - In: Euro + Med Plantbase - the information resource for Euro-Mediterranean plant diversity . Retrieved June 4, 2014.

Web links

Commons : Broken Herbs  - Collection of images, videos and audio files