Slender sea kale

from Wikipedia, the free encyclopedia
Slender sea kale
Crambe strigosa (Habitus) .jpg

Slender sea kale ( Crambe strigosa )

Systematics
Eurosiden II
Order : Cruciferous (Brassicales)
Family : Cruciferous vegetables (Brassicaceae)
Tribe : Brassiceae
Genre : Sea kale ( crambe )
Type : Slender sea kale
Scientific name
Crambe strigosa
L'Hér.

The Thin Man crambe ( Crambe strigosa ) is a plant from the genus crambe ( Crambe ). It is endemic to the Canary Islands and is called there by the common Spanish name "Col de risco".

description

The skinny sea kale is a small shrub that reaches heights of up to 1.5 meters. The woody stem axis is smooth. The up to 20 centimeters long, simple leaves are egg-shaped with a rough surface. The leaf margins are serrated irregularly with small, rounded teeth. The petioles of the adult leaves have a pair of almost opposite ears. Adult leaves are very densely hairy.

The branched, panicle inflorescence contains many small flowers . The small, hermaphrodite flowers are four-fold. The white petals are significantly longer than the calyx and are pointed (nailed) at the base. The fruit is a weakly four-ribbed pod .

The number of chromosomes is 2n = 30.

distribution

The skinny sea kale can be found on Tenerife and La Gomera . In Tenerife it is found locally on cliffs and hills in laurel forests , in the lowlands it is only found sporadically. Locations are near Cruz de Taganana, El Bailadero, Bajamar , Aguamansa, Icod de los Vinos , Los Silos and in the Barranco del Agua at altitudes between 400 and 1000 meters.

There are also reports of stocks on El Hierro; but this is most likely a separate species of C. feijoi Santos . On La Palma specimens were found in the Barranco del Agua, but their species allocation is doubtful.

In terms of plant sociology, the species belongs to the class Pruno-Lauretea azoricae.

Systematics

Within the genus Crambe , the skinny sea kale is grouped with 13 other species in the section Dendrocrambe DC. posed. Molecular genetic studies also showed that a monophyletic group of the five species Crambe pritzelii , Crambe santosii , Crambe strigosa , Crambe tamadababensis , and Crambe wildpretii exist. The closest relative of Crambe strigosa appears to be Crambe wildpretii . The relationship within the group shows the following cladogram :




Crambe pritzelii


   

Crambe tamadababensis



   

Crambe santosii


   

Crambe strigosa


   

Crambe wildpretii





literature

  • David Bramwell, Zoë Bramwell: Wild Flowers of the Canary Islands . 2nd Edition. Editorial Rueda SL , Alorcón 2001, ISBN 84-7207-129-4 , p. 134 f .
  • Javier Francisco-Ortega, Javier Fuertes-Aguilar, Seung-Chul Kim, Arnoldo Santos-Guerra, Daniel J. Crawford, Robert K. Jansen: Phylogeny of the Macaronesian endemic Crambe section Dendrocrambe (Brassicaceae) based on internal transcribed sequences of nuclear ribosomal DNA . In: American Journal of Botany . tape 89 , 2002, p. 1984–1990 ( abstract ). Full article online

Web links

Commons : Slender sea kale ( Crambe strigosa )  - album with pictures, videos and audio files