spiraea


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spiraea

(spīrē`ə), any plant of the genus Spiraea, Northern Hemisphere deciduous shrubs of the family Rosaceae (roserose,
common name for some members of the Rosaceae, a large family of herbs, shrubs, and trees distributed over most of the earth, and for plants of the genus Rosa, the true roses.
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 family). Most are indigenous to central and E Asia, whence come most of the popular ornamental species, e.g., the bridal wreath (S. x prunifolia), native to Japan, and its similar hybrid S. vanhouttei. In these species the fragrant, spirelike flower clusters typical of the genus are borne on long, arching branches. Spiraeas native to North America include the hardhack, or steeplebush (S. tomentosa), a local source of astringent and tonic, and the meadowsweets (several species). The name meadowsweet is also applied to the related genus Filipendula, tall, hardy perennials (also often cultivated) formerly classified as Spiraea because of the similar showy blossoms. Filipendula includes the Eurasian dropwort (F. hexapetala), the queen of the meadow (F. ulmaria), now naturalized in the United States, and the North American queen of the prairie (F. rubra). Spiraeas are classified in the division MagnoliophytaMagnoliophyta
, division of the plant kingdom consisting of those organisms commonly called the flowering plants, or angiosperms. The angiosperms have leaves, stems, and roots, and vascular, or conducting, tissue (xylem and phloem).
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, class Magnoliopsida, order Rosales, family Rosaceae.

Spiraea

 

(spirea), a genus of plants of the family Rosaceae. The plants are deciduous shrubs measuring 0.5–3 m tall. The alternate and simple leaves are usually dentate or serrate. The flowers, which are gathered in cymose, umbellate, or panicled inflorescences, are bisexual and have numerous stamens. The fruit is a follicle with tiny flat seeds.

There are about 100 species of spiraea, occurring in the northern hemisphere, mainly in the temperate zone. About 25 species are found in the USSR. The species S. media, which has smooth-margined or dentate leaves at the apex and white flowers in cymose inflorescences, grows in the northeastern part of the European USSR, in Southern Siberia, and in the Far East. It grows as part of the underbrush of arid forests and forms a dense cover on open slopes. S. salicifolia, which has sharply dentate leaves and pink flowers in pyramidal panicles, grows in Siberia and the Far East along riverbanks and in meadows and bogs. Both 5. media and S. salicifolia are ornamental shrubs commonly found in gardens and parks. Many other species and hybrids are cultivated as ornamentals.

REFERENCES

Derev’ia i kustamiki SSSR, vol. 3. Moscow-Leningrad, 1954.

V. N. GLADKOVA

spiraea

(esp US), spirea
any rosaceous plant of the genus Spiraea, having sprays of small white or pink flowers
References in periodicals archive ?
"For evergreen interest, I might use Abelia 'Kaleidoscope' instead of the spiraea. This is a compact shrub of similar proportions and colouring with the benefit of small pink autumn flowers with colourful calyces.
Agrimonia parviflora Sol.: P40063 Aronia melanocarpa (Michx.) Ell.: P39463 Fragaria virginiana Duchesne: P39470 Geum canadense Jacq.: P39795 Geum laciniatum Murr.: P39804 Malus ioensis (Wood) Britt.: P39481 * Malus pumila Mill.: P39466 * Potentilla norvegica L.: P41787 Potentilla simplex Michx.: P41198 Prunus serotina Ehrh.: P40142 Rosa carolina L.: P42176 * Rosa multifolia Thunb.: P42117 Rosa palustris Marsh.: P39754 Rubus allegheniensis Porter: P41843 Rubus flagellaris Willd.: P41841 Rubus hispidus L.: P41780 Rubus occidentalis L.: P41767 Spiraea alba DuRoi: P39781 Spiraea tomentosa L.: P40094
Buy one Spiraea japonica Shirobana for PS6.49 or order two for PS12.98 and receive a further one FREE.
| Summer-flowering shrubs, such as fuchsia, spiraea, perovskia, lavatera, buddleja, Gloire de Versailles) usually flower on new growth, so a good chop now will stimulate this.
| PRUNE early-flowering shrubs such as Kerria japonica and Spiraea Arguta, which finish flowering on wood that was produced the previous year.
? Prune shrubs, including chaenomeles, deutzia, spiraea, and philadelphus, as soon as they have finished flowering.
Primrose Valley, Elis Eliz, Subtle Knife and Be Royale are other past winners at Kempton, but Spiraea, who is making her debut for Andrew Reid, has never run on the all-weather before.
Varieties available are Hypericum Orange Flair, Hydrangea Rosy Summer (pictured), Spiraea Goldflame, Caryopteris Heavenly Blue, Spiraea Shirobana and Ceratostigma plumbaginoides.
Birds like the taste but squirrels don't Take hardwood cuttings of dogwood, euonymus, buddleia, spiraea and weigela Continue to harvest leeks and Brussels sprouts
Prune shrubs that have recently finished flowering such as spiraea and Kerria japonica ?
Those easiest to move include camellia, Mexican orange blossom (Choisya ternata), dogwood (above), heather, eleagnus, forsythia, hebe, hydrangea, kerria, rosemary, potentilla, Spiraea japonica and rhododendron (below).
During the dormant season many species such as Acanthus (Bear's Britches), Aesculus (Horse Chestnut), Aralia, Chaenomeles (Flowering Quince), Eryngium (Sea Holly), Papaver (Poppy), Romneya (Californian Poppy) and Spiraea can be propagated by taking root cuttings.