Sandy herbs

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Sandy herbs
Mountain Sandwort (Arenaria montana)

Mountain Sandwort ( Arenaria montana )

Systematics
Eudicotyledons
Nuclear eudicotyledons
Order : Clove-like (Caryophyllales)
Family : Carnation family (Caryophyllaceae)
Subfamily : Alsinoideae
Genre : Sandy herbs
Scientific name
Arenaria
L.

The arenaria ( Arenaria ) are a genus within the family of the Pink family (Caryophyllaceae). The 150 to 300 species occur mainly in the temperate and colder regions of the northern hemisphere ( Holarctic ).

description

Vegetative characteristics

These are mostly smaller, often cushion-forming, mostly annual or perennial, rarely biennial herbaceous plants , more rarely subshrubs . Often rhizomes are present. The opposite leaves are undivided and with entire margins, but otherwise of very different shapes: lanceolate to rounded. The leaf blade has one or three to five leaf veins.

Generative characteristics

Flower of the sandwort ( Arenaria serpyllifolia )

The flowers stand alone or in small numbers together in inflorescences, these usually have the shape of dichasias or coils . The mostly small, radial symmetry flowers are four or five-fold with a double flower envelope . The mostly five mostly completely free and mostly green sepals are 2 to 5 mm long. In contrast to many other representatives of the Alsinoideae subfamily , the five mostly white petals are pointed or rounded at the front, but not edged and not divided into two parts. Some species lack petals. There are two circles with each (rarely four in Arenaria livermorensis or less) usually five stamens . The most three, rarely five carpels have become a top permanent ovary grown with numerous ovules . There are as many styles as 0.5 to 2 mm as carpels.

The capsule fruits open with six (or less often ten) short teeth and rarely contain only one, usually five to 35 seeds. The brown to dark brown or black, mostly kidney to almost circular seeds are wingless or narrowly winged.

Occurrence

The sandy herbs are found with around 150 to 300 species mainly in the temperate and colder areas of the northern hemisphere ( Holarctic ). There are 102 species in China , 79 of them only there. In North America , only nine species are native. Some species are also found in the Andes as far as Patagonia .

Balearic sandwort ( Arenaria balearica )
Two-flowered sandwort ( Arenaria biflora )
Arenaria bryophylla in Nepal at 5200 meters above sea level
Ciliate Sandwort ( Arenaria ciliata )
Large-flowered sandwort ( Arenaria grandiflora )
Common sandwort ( Arenaria serpyllifolia )

Systematics

The genus Arenaria was established by Carl von Linné . The botanical genus name Arenaria is derived from arena for sand and refers to the locations of some species. Synonyms for Arenaria L. are: Brewerina A.Gray , Cernohorskya Á.Löve & D.Löve , Gooringia F.N.Williams , Gouffeia Robill. & Castagne ex Lam. & DC. , Spergulastrum Michx. , Willwebera Á.Löve & D.Löve .

The genus Arenaria belongs to the tribe Alsineae in the subfamily Alsinoideae within the family Caryophyllaceae .

Closely related genera, which some authors have also included in the Arenaria s. l. are included are: Eremogone Fenzl (about 90 species), Mier ( Minuartia L. about 175 species) and umbilical chickweed ( Moehringia L. about 25 species); then Arenaria contains s. st. about 210 species. This is a controversial issue.

The species-rich genus Arenaria is divided into ten sub-genera and these are often divided into sections and series. The subgenus Odontostemma contains more than half of the species.

Here is a selection of around 150 to 300 Arenaria species:

literature

  • Ronald L. Hartman, Richard K. Rabeler, Frederick H. Utech: Arenaria - the same text online as the printed work , In: Flora of North America Editorial Committee (Ed.): Flora of North America North of Mexico , Volume 5 - Magnoliophyta: Caryophyllidae , part 2 , Oxford University Press, New York and Oxford, 2005. ISBN 0-19-522211-3
  • Wu Zhengyi & Warren L. Wagner: Arenaria , p. 40 - 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 Systematics Sections)
  • Henning Haeupler, Thomas Muer: picture atlas of the fern and flowering plants of Germany . Ed .: Federal Agency for Nature Conservation (=  The fern and flowering plants of Germany . Volume 2 ). Eugen Ulmer, Stuttgart (Hohenheim) 2000, ISBN 3-8001-3364-4 .
  • Wolfgang Adler, Karl Oswald, Raimund Fischer: Excursion flora of Austria . Ed .: Manfred A. Fischer. Eugen Ulmer, Stuttgart / Vienna 1994, ISBN 3-8001-3461-6 .
  • Christian Heitz: School and excursion flora for Switzerland. Taking into account the border areas. Identification book for wild growing vascular plants . Founded by August Binz. 18th completely revised and expanded edition. Schwabe & Co., Basel 1986, ISBN 3-7965-0832-4 .
  • Erich Oberdorfer : Plant-sociological excursion flora . With the collaboration of Theo Müller. 6th, revised and expanded edition. Eugen Ulmer, Stuttgart (Hohenheim) 1990, ISBN 3-8001-3454-3 .
  • Konrad von Weihe (ed.): Illustrated flora. Germany and neighboring areas. Vascular cryptogams and flowering plants . Founded by August Garcke. 23rd edition. Paul Parey, Berlin / Hamburg 1972, ISBN 3-489-68034-0 .
  • Arthur Oliver Chater, Geoffrey Halliday: Arenaria L. In: TG Tutin, NA Burges, AO Chater, JR Edmondson, VH Heywood, DM Moore, DH Valentine, SM Walters, DA Webb (Eds.): Flora Europaea . 2nd, revised edition. Volume 1: Psilotaceae to Platanaceae . Cambridge University Press, Cambridge / New York / Melbourne 1993, ISBN 0-521-41007-X , pp. 140–148 (English, limited preview in Google Book Search).

Individual evidence

  1. a b c d e f g h i j k l Arenaria in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved August 25, 2017.
  2. a b c d e f g h Ronald L. Hartman, Richard K. Rabeler, Frederick H. Utech: Arenaria - text same online as printed work, In: Flora of North America Editorial Committee (Ed.): Flora of North America North of Mexico , Volume 5 - Magnoliophyta: Caryophyllidae, part 2 , Oxford University Press, New York and Oxford, 2005, ISBN 0-19-522211-3
  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 ak al am an ao ap aq ar as at au av aw ax ay az ba bb bc bd be bf bg bh bi bj bk bl bm bn bo bp bq br bs bt bu bv bw bx by bz ca cb cc cd ce cf cg ch ci cj ck cl cm cn co cp cq cr cs ct cu K. Marhold, 2011: Caryophyllaceae. Arenaria. In: Euro + Med Plantbase - the information resource for Euro-Mediterranean plant diversity .
  4. ^ David John Mabberley: Mabberley's Plant-Book. A portable dictionary of plants, their classification and uses. 3. Edition. Cambridge University Press 2008, ISBN 978-0-521-82071-4 , p. 64 ( limited preview in Google Book Search).
  5. Jaakko Jalas, Juha Suominen: Atlas florae europaeae. Volume 6 Caryophyllaceae (Alsinoideae and Paronychioideae). Helsinki 1986, ISBN 951-9108-05-X .

Web links

Commons : Sand Herbs ( Arenaria )  - Collection of images, videos and audio files