Lice herbs

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Lice herbs
Whorled louse herb (Pedicularis verticillata)

Whorled louse herb ( Pedicularis verticillata )

Systematics
Nuclear eudicotyledons
Asterids
Euasterids I
Order : Mint family (Lamiales)
Family : Summer root family (Orobanchaceae)
Genre : Lice herbs
Scientific name
Pedicularis
L.

The plant genus of the louse herbs ( Pedicularis ) belongs to the family of summer root plants (Orobanchaceae). It includes around 600 species in the northern hemisphere .

description

Illustration of the Lapland louse herb ( Pedicularis lapponica )
Illustration from The Poisonous Plants of Germany , 1910 of Marsh Louse Weed ( Pedicularis palustris )
Illustration of the forest louse herb ( Pedicularis sylvatica )
Zygomorphic flower of the rose louse herb ( Pedicularis rosea )
Ripe capsule fruit of the Karl scepter ( Pedicularis sceptrum-carolinum )

Vegetative characteristics

Lousewort species grow as perennial or annual, rarely biennial herbaceous plants .

The leaves are alternate, opposite or distributed in whorls on the stem. The lower leaves are usually long-stalked and the upper ones are often more or less sessile. The leaf blades are usually pinnate or pinnate, rarely simply with a smooth or serrated edge.

Generative characteristics

There is a terminal inflorescence or the flowers are in the leaf axils. The bracts are mostly foliage-like.

The hermaphrodite flowers are zygomorphic and have a double flower envelope . The sepals are fused tubular to bell-shaped; the calyx is often more or less two-lipped and mostly deeply split into rarely two to mostly five calyx teeth. The purple, red, yellow or white petals are fused; the crown is strongly two-lipped. In most species, the corollas are slightly screwy and twisted a little to the side off the center line, seen from the front to the left. The upper lip envelops the anthers like a hood, is compressed, rounded or trimmed at the sides and ends in teeth or a beak. The three corolla lobes of the lower lip are mostly spread out and in the bud stage outside the upper lip. There are four stamens . The stamens are hairless or hairy and the anthers can have a spike tip. The scars are heady.

The columnar (= loculicidal) capsule fruits can appear somewhat compressed and contain many seeds. The seeds have a net-like or ribbed surface.

Pollination of the Karl scepter ( Pedicularis sceptrum-carolinum ) by Bombus schrencki

ecology

All lice herb species are semi-parasites that use suction organs ( haustoria ) to remove water and nutrient salts from the roots of host plants . The plants can therefore also thrive in dry locations, although they themselves have not developed any protection against evaporation. Once picked, lice herbs wither quickly.

Alpine lice herb species are completely adapted to bumblebees as pollinators .

Toxicity

Weed plants taste fiery hot and have an unpleasant smell, so grazing cattle avoid them. Consumption is believed to cause intestinal inflammation and blood urination .

Aucubin makes all parts of the plant, especially the seeds, poisonous.

Systematics and distribution

The genus Pedicularis was set up in 1753 by Carl von Linné in Species Plantarum , 2, pages 607-610. Pedicularis sylvatica L. was introduced as a lectotype species in 1930 by Francis Whittier Pennell in Proceedings of the Academy of Natural Sciences of Philadelphia. , Volume 82, page 18. A synonym for Pedicularis L. is Pediculariopsis Á.Löve & D.Löve .

The genus Pedicularis belongs to the Orobanchaceae family ; earlier it was assigned to the Scrophulariaceae family .

The genus Pedicularis is widespread in the cold and alpine areas of the northern hemisphere . There are 352 species in China, 271 of them only there. The center of biodiversity with most species is in the mountains of southwest China.

Stemless lice herb ( Pedicularis acaulis )
Inflorescence of Pedicularis attollens , the three-lobed lower lip of the zygomorphic flower is clearly visible.
Section of an inflorescence of Pedicularis bracteosa , the hood-shaped upper lip of the zygomorphic flower is clearly visible.
Inflorescence of Pedicularis canadensis , the hood-shaped upper lip of the zygomorphic flower is clearly visible.
Scaly lice herb ( Pedicularis comosa )
Leafy lice herb ( Pedicularis foliosa )
Pedicularis gracilis subsp. gracilis
Kerner's lice herb ( Pedicularis kerneri )
Marsh louse weed ( Pedicularis palustris )
Two- flower louse herb ( Pedicularis portenschlagii )
Trimmed lice herb ( Pedicularis recutita )
Head lice herb ( Pedicularis rostratocapitata )
Spotted lice herb ( Pedicularis rostratospicata )
Habitus of the Karlsszepter ( Pedicularis sceptrum-carolinum )
Forest lice herb ( Pedicularis sylvatica )
Bulbous lice herb ( Pedicularis tuberosa )
Inflorescence with zygomorphic flowers of the whorleaved louse herb ( Pedicularis verticillata )

There are around 600 types of pedicularis (selection):

Name interpretation

With regard to the name interpretation (Latin pediculus for "louse") there are different possibilities:

  • It was formerly a decoction of the bottom lousewort ( Pedicularis palustris ) against livestock and human lice and other vermin used
  • Or because the cattle are attacked by lice when they are eaten
  • Or crinkled appearance of strong fiederspaltigen leaves gives the impression that they are using aphids are occupied

Name similarities

  • Sabadill , Sabadill louse herb, Mexican lice herb ( Schoenocaulon officinale )
  • White germer ( Veratrum album ), also known as louse herb

swell

  • Han-bi Yang, Noel H. Holmgren, Robert R. Mill: Pedicularis Linnaeus. In: Wu Zheng-yi, Peter H. Raven, Deyuan Hong (Eds.): Flora of China. Volume 18: Scrophulariaceae. Science Press and Missouri Botanical Garden Press, Beijing and St. Louis, 1998, ISBN 0-915279-55-X . (Sections Description and Distribution)

Individual evidence

  1. 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 cv cw cx cy cz da db dc dd de df dg dh di dj dk dl dm dn do dp dq dr ds dt du dv dw dx dy dz ea eb ec ed ee ef eg eh ei ej ek el em en eo ep eq er es et eu ev ew ex ey ez fa fb fc fd fe ff fg fh fi fj fk fl fm fn fo fp fq fr fs ft fu fv fw fx fy fz ga gb gc gd ge gf gg gh gi gj gk gl gm gn go gp gq gr gs gt gu gv gw gx gy gz ha hb hc hd he hf hg hh hi hj hk hl hm hn ho hp hq hr hs ht hu hv hw hx hy hz ia ib ic id ie Han-bi Yang, Noel H. Holmgren, Robert R. Mill: Pedicularis Linnaeus. In: Wu Zheng-yi, Peter H. Raven, Deyuan Hong (Eds.): Flora of China. Volume 18: Scrophulariaceae. Science Press and Missouri Botanical Garden Press, Beijing and St. Louis, 1998, ISBN 0-915279-55-X .
  2. ^ Pedicularis at Tropicos.org. Missouri Botanical Garden, St. Louis
  3. a b c d e f g h Pedicularis in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland.
  4. 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 Karol Marhold (2011+): Pedicularis. Datasheet Pedicularis L. - In: Euro + Med = Plantbase - the information resource for Euro-Mediterranean plant diversity .
  5. Pedicularis dasyantha in Svalbards Flora , last viewed on January 20, 2019 (English, Norwegian).

further reading

  • Wen-Bin Yu, Min-Lu Liu, Hong Wang, Robert R. Mill, Richard H. Ree, Jun-Bo Yang, De-Zhu Li: Towards a comprehensive phylogeny of the large temperate genus Pedicularis (Orobanchaceae), with an emphasis on species from the Himalaya-Hengduan Mountains. In: BMC Plant Biology , Volume 15, 2015, p. 176. doi: 10.1186 / s12870-015-0547-9
  • Hans Christian Weber: Parasitism of flowering plants. Scientific Book Society, Darmstadt 1993, ISBN 3-534-10529-X .
  • Hans Christian Weber: Schmarotzer: Plants that live on others . Belser, Stuttgart 1978, ISBN 3-7630-1834-4 .
  • Y. Tang, JS Xie: A pollination ecology study of Pedicularis Linnaeus (Orobanchaceae) in a subalpine to alpine area of ​​northwest Sichuan, China. In: Arctic, Antarctic, and Alpine Research. Volume 38, No. 3, 2006, pp. 446-453, doi : 10.1657 / 1523-0430 (2006) 38 [446: APESOP] 2.0.CO; 2 .
  • Hong Wang, De-Zhu Li: Pollination Biology of Four Pedicularis Species (Scrophulariaceae) in Northwestern Yunnan, China. In: Annals of the Missouri Botanical Garden. , Volume 92, No. 1, 2005, pp. 127-138, PDF file.
  • Lazarus Walter Macior, Tang Ya, Jianchen Zhang: Reproductive biology of Pedicularis (Scrophulariaceae) in the Sichuan Himalaya. In: Plant Species Biology. Volume 16, No. 1, 2001, pp. 83-89 m DOI: 10.1046 / j.1442-1984.2001.00048.x .
  • M. Philipp, SRJ Woodell, J. Böcher, O. Mattsson: Reproductive Biology of Four Species of Pedicularis (Scrophulariaceae) in West Greenland. In: Arctic and Alpine Research. Vol. 28, No. 4, 1996, pp. 403-413, JSTOR 1551851 .
  • EF Sprague: Pollination and evolution in Pedicularis (Scrophulariaceae). In: Aliso. Volume 5, 1962, pp. 181-209.

Web links

Commons : Lice Herbs ( Pedicularis )  - Album with pictures, videos and audio files