Stachyurus

Last updated

Stachyurus
Stachyurus praecox3.jpg
Stachyurus praecox flowers.
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Crossosomatales
Family: Stachyuraceae
J.Agardh
Genus: Stachyurus
Siebold & Zucc.
Species

See text

Stachyurus is the only genus in the flowering plant family Stachyuraceae, [1] native to the Himalayas and eastern Asia. They are deciduous shrubs or small trees with pendent racemes of 4-petalled flowers which appear on the bare branches before the leaves. [2] The plants have leaves with serrate margins.

Contents

Pendunculagin, casuarictin, strictinin, casuarinin and casuariin are ellagitannins found in species in this genus. [3]

Stachyurus praecox from Japan, and the slightly later-flowering S. chinensis from China, are both cultivated as ornamental plants, valued for their exceptionally early flowering periods.

Stachyurus chinensis Stachyurus chinensis3.jpg
Stachyurus chinensis

Species list

Related Research Articles

<span class="mw-page-title-main">Typhaceae</span> Family of flowering plants

The Typhaceae are a family of flowering plants, sometimes called the cattail family. The botanical name for the family has been recognized by most taxonomists.

<i>Orchidantha</i> Genus of flowering plants

Orchidantha is a genus of flowering plants. In the APG III system, it is placed in the family Lowiaceae, as the sole genus. It includes the plants in the formerly recognised genera Lowia and Protamomum.

<span class="mw-page-title-main">Oxalidaceae</span> Family of flowering plants

The Oxalidaceae, or wood sorrel family, are a small family of five genera of herbaceous plants, shrubs and small trees, with the great majority of the 570 species in the genus Oxalis. Members of this family typically have divided leaves, the leaflets showing "sleep movements", spreading open in light and closing in darkness.

<span class="mw-page-title-main">Pandaceae</span> Family of flowering plants

The family Pandaceae consists of three genera that were formerly recognized in the Euphorbiaceae. Those are:

<span class="mw-page-title-main">Begoniaceae</span> Family of flowering plants

Begoniaceae is a family of flowering plants with two genera and about 2040 species occurring in the subtropics and tropics of both the New World and Old World. All but one of the species are in the genus Begonia. There have been many recent discoveries of species in the genus Begonia, such as Begonia truncatifolia which is endemic to San Vincente, Palawan. B. truncatifolia is smaller in size than other species of the genus Begonia and this new species is proposed Critically Endangered by standards set by the IUCN. The only other genus in the family, Hillebrandia, is endemic to the Hawaiian Islands and has a single species. Phylogenetic work supports Hillebrandia as the sister taxon to the rest of the family. The genus Symbegonia was reduced to a section of Begonia in 2003, as molecular phylogenies had shown it to be derived from within that genus. Members of the genus Begonia are well-known and popular houseplants.

<span class="mw-page-title-main">Elatinaceae</span> Family of flowering plants

Elatinaceae is a family of flowering plants with ca 35 species in two genera: Elatine and Bergia. The Elatine are mostly aquatic herbs, and the Bergia are subshrubs to shrubs. Elatine species are widely distributed throughout the world from temperate to tropical zones, with its greatest diversity found in temperate zones. Bergia is found in temperate to tropical Eurasia and Africa, with two tropical and one tropical to temperate species in the Americas. The center for biodiversity of Bergia is the Old World tropics, and this is also the center for biodiversity for the family. Neither genus is found in arctic ecosystems.

<i>Euptelea</i> Genus of flowering plants

Euptelea is a genus of two species of flowering plants in the monogeneric family Eupteleaceae. The genus is found from Assam east through China to Japan, and consists of shrubs or small trees:

<span class="mw-page-title-main">Corsiaceae</span> Family of flowering plants

Corsiaceae is a family of monocotyledonous flowering plants. The APG II system (2003) treats the family in the order Liliales, in the clade monocots. This is a slight change from the APG system, of 1998, which left the family unplaced as to order, but did assign it also to the monocots.

<span class="mw-page-title-main">Cyrillaceae</span> Family of flowering plants

The Cyrillaceae are a small family of flowering plants in the order Ericales, native to warm temperate to tropical regions of the Americas. The family comprises two genera, Cliftonia and Cyrilla, each containing a single species, Cliftonia monophylla and Cyrilla racemiflora. However, additional species of Cyrilla are now often recognized and the genus is in need of taxonomic revision.

<i>Datisca</i> Genus of flowering plants

The Datiscaceae are a family of dicotyledonous plants, containing two species of the genus Datisca. Two other genera, Octomeles and Tetrameles, are now classified in the family Tetramelaceae.

<i>Aphanopetalum</i> Genus of flowering plants

Aphanopetalum is a genus of twining shrubs or vines in the family Aphanopetalaceae which are endemic to Australia.

<i>Biebersteinia</i> Genus of flowering plants

Biebersteinia is a genus containing five species, of herbs in the flowering plant order Sapindales. They occur from East Mediterranean to West Siberia and Central Asia. They are normally stemless and have tuberous rhizomes.

<i>Allocasuarina verticillata</i> Species of plant

Allocasuarina verticillata, commonly known as drooping she-oak or drooping sheoak, is a nitrogen-fixing native tree of southeastern Australia.

<i>Hydrostachys</i> Genus of flowering plants

Hydrostachys is a genus of about 22 species of flowering plants native to Madagascar and southern and central Africa. It is the only genus in the family Hydrostachyaceae. All species of Hydrostachys are aquatic, growing on rocks in fast-moving water. They have tuberous roots, usually pinnately compound leaves, and highly reduced flowers on dense spikes.

<span class="mw-page-title-main">Casuarictin</span> Chemical compound

Casuarictin is an ellagitannin, a type of hydrolysable tannin. It can be found in Casuarina and Stachyurus species.

<span class="mw-page-title-main">Tellimagrandin II</span> Chemical compound

Tellimagrandin II is the first of the ellagitannins formed from 1,2,3,4,6-pentagalloyl-glucose. It can be found in Geum japonicum and Syzygium aromaticum (clove).

<i>Linnaea chinensis</i> Species of plant in the family Caprifoliaceae

Linnaea chinensis, synonyms Abelia chinensis and Abelia rupestris, commonly known as Chinese Abelia, is a semi-evergreen, densely branched shrub with dark green foliage. It is a species of flowering plant in the honeysuckle family Caprifoliaceae.

<i>Kewa</i> (plant) Genus of flowering plants

Kewa is a genus of flowering plants, consisting of eight species of succulent sub-woody plants, native to eastern and southern Africa, including Saint Helena and Madagascar. These are small shrubs or herbs that form cushions and have edible, acid-tasting leaves. Kewa is the only genus in the family Kewaceae.

<i>Stachyurus praecox</i> Species of flowering plant in the family Stachyuraceae

Stachyurus praecox, early stachyurus, is a species of flowering plant in the family Stachyuraceae, native to Japan. It is a spreading deciduous shrub growing to 4 m (13 ft) tall by 3 m (10 ft) wide. Pendent, bell-shaped, primrose yellow flowers are borne on naked arching branches in winter and spring. They are followed by ovate leaves, which colour to pink or red before falling in autumn.

<i>Stachyurus chinensis</i> Species of flowering plant in the family Stachyuraceae

Stachyurus chinensis (中国旌节花), Chinese stachyurus, is a species of flowering plant in the family Stachyuraceae, native to China and Taiwan. It is a spreading deciduous shrub growing to 2.5 m (8 ft) tall by 4 m (13 ft) wide. Stiff, pendent racemes of bell-shaped, greenish-yellow flowers are borne on glossy, dark brown branches in winter and spring. It flowers two weeks later than the related S. praecox. The flowers are followed by simple ovate leaves which colour to pink and red before falling in autumn.

References

  1. Christenhusz, M. J. M. & Byng, J. W. (2016). "The number of known plants species in the world and its annual increase". Phytotaxa. Magnolia Press. 261 (3): 201–217. doi: 10.11646/phytotaxa.261.3.1 .
  2. RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN   978-1405332965.
  3. Tannins of Casuarina and Stachyurus species. I: Structures of pendunculagin, casuarictin, strictinin, casuarinin, casuariin, and stachyurin. Okuda T., Yoshida T., Ashida M. and Yazaki K., Journal of the Chemical Society, 1983, no8, pp. 1765-1772