Cornus drummondii

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Cornus drummondii
Cornus drummondii

Cornus drummondii

Systematics
Nuclear eudicotyledons
Asterids
Order : Dogwood-like (Cornales)
Family : Dogwood family (Cornaceae)
Genre : Dogwood ( Cornus )
Type : Cornus drummondii
Scientific name
Cornus drummondii
CAMey.

Cornus drummondii is a plant from the genus of dogwood ( Cornus ) in the family of Dogwood (Cornaceae). It is in the central North America used and it is there in the English language the common name used "roughleaf dogwood".

Description and ecology

illustration

Cornus drummondii grows as a shrub or small tree that reaches a height of 4 to 7 meters. Its branches are erect, sometimes a broad crown is formed on a short trunk. Numerous runners emerge from the roots so that extensive thickets can arise. The bark of young twigs is brown-red and coarsely hairy, with older twigs it turns gray-brown. The marrow is brown.

Top and bottom of the leaves

The opposite continuously arranged on the branches leaves are divided into petiole and leaf blade. The simple leaf blade is 5 to 10 inches long and 2.5 to 7 inches wide. The upper side of the leaf is covered with short, rough hair and the underside is lighter and softly haired. The leaf veins stand out clearly on the underside of the leaf and are curved towards the tip of the leaf. In autumn, the leaves turn red before the leaves fall.

The flowering time is in early summer . The flowers are in 3 to 8 centimeters wide inflorescences at the ends of this year's branches. The relatively small, hermaphrodite flowers are radial symmetry and four-fold with a double flower envelope . The four sepals are whitish. The four petals are white. The four stamens consist of white stamens and yellow anthers . The stamp is greenish-white.

The white stone fruit with a more or less spherical stone core ripens at the end of summer or at the beginning of autumn and is mainly spread by birds, but various mammals also eat it.

The number of chromosomes is 2n = 22.

distribution

Cornus drummondii is a shrub of the transition zone from the forests in eastern North America to the prairie . Its distribution area stretches from the Great Lakes in the north to the Gulf of Mexico in the south-west.

Although it grows well in moist locations, it can also tolerate dry conditions. It can cope with a wide variety of different floors .

Taxonomy

The first description of Cornus drummondii was in 1845 by Carl Anton von Meyer . The specific epithet drummondii honors the Scottish botanist Thomas Drummond (1790–1835).

use

In the range of Cornus drummondii , its rapid growth and rooting runners ability can be used to prevent soil erosion and strengthen banks.

An earlier medicinal use is reported by the Indians .

In Europe, Cornus drummondii very rare in the trade available.

Individual evidence

  1. ↑ Cornus drummondii at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis
  2. ↑ Distribution map . (PDF; 722 kB) In: US Department of Agriculture.
  3. ^ Carl Anton von Meyer: Bulletin de la Classe physico-mathématique de l'Académie impériale des sciences de Saint-Pétersbourg. Saint-Pétersbourg 3, 1845, p. 372. ISSN  1029-998X
  4. ↑ Cornus drummondii in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland.
  5. ↑ Native American Ethnobotany , University of Michigan ( Memento of the original from March 4, 2016 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / herb.umd.umich.edu
  6. ↑ PPP-Index, Plant Buying Guide for Europe. In: Ulmer-Verlag. (Pay database)

Web links

Commons : Cornus drummondii  - collection of images, videos and audio files