Alder-leaved cinnamon

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Alder-leaved cinnamon
Clethra-alnifolia-flowers.JPG

Alder-leaved cinnamon ( Clethra alnifolia )

Systematics
Class : Bedecktsamer (Magnoliopsida)
Asterids
Order : Heather-like (Ericales)
Family : Scheinellergewächse (Clethraceae)
Genre : Cinnamon ( Clethra )
Type : Alder-leaved cinnamon
Scientific name
Clethra alnifolia
L.

The alder-leaved cinnamon ( Clethra alnifolia ) is a species of cinnamon ( Clethra ) within the clethraceae family . It is widespread in eastern North America from southern Nova Scotia and Maine to northern Florida and westward to eastern Texas , where it is called, among other things, English coastal sweetpepperbush .

description

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Illustration from Afbeeldingen der fraiste, meest uitheemsche boomen en heesters , plate 57

Vegetative characteristics

The alder-leaved cinnamon is a deciduous shrub that reaches heights of 1.5 to 3 meters. The alternate leaves arranged on the branches are divided into a petiole and a leaf blade. The simple leaf blade is egg-shaped to oblong with a sawn edge with a length of 4 to 10 centimeters and a width of 2 to 4 centimeters. The leaves are green and turn golden yellow in autumn.

Generative characteristics

The flowering time is - depending on the variety - in late summer. The flowers are grouped in racemose inflorescences that are up to 15 inches long and about 2 inches wide. The flowers are white or very pale pink, 5 to 10 millimeters in diameter, and have a sweet, somewhat unpleasant odor.

There are fruit capsules formed.

ecology

The flowers are attractive to bumblebees .

Site conditions

The alder-leaved cinnamon grows in damp forests , so-called pine flatwoods, wetlands , moors and along forest streams. It prefers neutral to acidic soils. The population on Nova Scotia is small and considered threatened.

Taxonomy

Clethra alnifolia was first published by Carl von Linné . The specific epithet alnifolia comes from the generic name Alnus and the Latin term folia for "leaf" and means "alder-leaved". Synonyms for Clethra alnifolia L. are: Clethra angustifolia Raf. nom. illeg., Clethra bracteata Raf. , Clethra dentata Aiton , Clethra incana Pers. nom. illeg., Clethra paniculata Aiton , Clethra pubescens Willd. , Clethra pumila Raf. , Clethra tomentosa Lam.

Inflorescence of the 'Ruby Spice' variety

use

The alder-leaved cinnamon is usually planted as a shrub in natural gardens or along streams and ponds to protect against soil erosion . It only drives out its leaves late in the year, which limits its suitability for landscaping. Several cultivars have been bred for gardens, including September Beauty. Both 'Ruby Spice' with dark pink flowers and the dwarf form 'Hummingbird' received the 2017 Award of Garden Merit from the Royal Horticultural Society .

Common names and etymology

The component “pepper” in the common English name comes from the ripe capsule fruits, which have a vague resemblance to peppercorns, but have no flavor. Another common name in English is common white alder (the unauthorized direct translation would be German  Common White Alder ), although these two species are not related to each other.

Individual evidence

  1. ^ Lorraine Harrison: RHS Latin for Gardeners . Mitchell Beazley, United Kingdom 2012, ISBN 978-1-84533-731-5 .
  2. ↑ a b RHS Plantfinder - Clethra alnifolia 'Ruby Spice' . Accessed January 30, 2018.
  3. ↑ RHS Plantfinder - Clethra alnifolia 'Hummingbird' . Accessed January 30, 2018.
  4. ^ AGM Plants - Ornamentals . Royal Horticultural Society. July 2017. Retrieved January 24, 2018.

Web links

Commons : Alder-leaved cinnamon ( Clethra alnifolia )  - album with pictures, videos and audio files