Spiraea
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 Spiraea thunbergii
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About 80-100, see text |
Spiraea is a genus of about 80-100 species of shrubs in the Rosaceae, subfamily Spiraeoideae. They are native to the temperate Northern Hemisphere, with the greatest diversity in eastern Asia.
Spiraea species are used as food plants by the larvae of some Lepidoptera species including Brown-tail, Emperor Moth, Grey Dagger, Hypercompe indecisa and Setaceous Hebrew Character.
The genus was formerly treated as also containing the herbaceous species now segregated into the genera Filipendula and Aruncus; recent genetic evidence has shown that Filipendula is only distantly related to Spiraea, belonging in the subfamily Rosoideae.
[edit] Selected species
- Spiraea alba (Broadleaf White Spirea)
- Spiraea amoena
- Spiraea arcuata
- Spiraea baldschuanica
- Spiraea bella
- Spiraea betulifolia
- Spiraea blumei
- Spiraea calcicola
- Spiraea cana
- Spiraea canescens
- Spiraea cantoniensis
- Spiraea chamaedryfolia
- Spiraea crenata
- Spiraea decumbens
- Spiraea densiflora
- Spiraea douglasii (Hardhack)
- Spiraea gemmata
- Spiraea henryi
- Spiraea hypericifolia
- Spiraea japonica (Japanese Spiraea)
- Spiraea latifolia
- Spiraea lobata
- Spiraea longigemmis
- Spiraea media
- Spiraea micrantha
- Spiraea miyabei
- Spiraea mollifolia
- Spiraea nervosa
- Spiraea nipponica
- Spiraea prunifolia (Bridalwreath Spiraea)
- Spiraea pubescens
- Spiraea rosthornii
- Spiraea salicifolia (Bridewort Spiraea)
- Spiraea sargentiana
- Spiraea thunbergii
- Spiraea tomentosa (Steeplebush)
- Spiraea trichocarpa
- Spiraea trilobata
- Spiraea veitchii
- Spiraea virginiana
- Spiraea wilsonii
- Spiraea yunnanensis
There are also numerous named hybrids, some occurring in the wild, others bred in gardens; some are important ornamental plants:
- Spiraea × arguta (S. × multiflora × S. thunbergii)
- Spiraea × billardii (S. douglasii × S. salicifolia)
- Spiraea × blanda (S. nervosa × S. cantoniensis)
- Spiraea × brachybotrys (S. canescens × S. douglasii)
- Spiraea × bumalda (S. japonica × S. albiflora)
- Spiraea × cinerea (S. hypericifolia × S. cana)
- Spiraea × conspicua (S. japonica × S. latifolia)
- Spiraea × fontenaysii (S. canescens × S. salicifolia)
- Spiraea × foxii (S. japonica × S. betulifolia)
- Spiraea × gieseleriana (S. cana × S. chamaedryfolia)
- Spiraea × macrothyrsa (S. douglasii × S. latifolia)
- Spiraea × multiflora (S. crenata × S. hypericifolia)
- Spiraea × notha (S. betulifolia × S. latifolia)
- Spiraea × nudiflora (S. chamaedryfolia × S. bella)
- Spiraea × pikoviensis (S. crenata × S. media)
- Spiraea × pyramidata (S. betulifolia × S. douglasii)
- Spiraea × revirescens (S. amoena × S. japonica)
- Spiraea × sanssouciana (S. japonica × S. douglasii)
- Spiraea × schinabeckii (S. chamaedryfolia × S. trilobata)
- Spiraea × semperflorens (S. japonica × S. salicifolia)
- Spiraea × vanhouttei (S. trilobata × S. cantoniensis)
- Spiraea × watsoniana (S. douglasii × S. densiflora)
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