Species of flowering plant
| Rhododendron dauricum
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Scientific classification 
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| Kingdom:
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Plantae
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| Clade:
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Tracheophytes
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| Clade:
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Angiosperms
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| Clade:
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Eudicots
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| Clade:
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Asterids
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| Order:
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Ericales
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| Family:
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Ericaceae
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| Genus:
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Rhododendron
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| Species:
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R. dauricum
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| Binomial name
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Rhododendron dauricum
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| Synonyms
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List
- Azalea daurica (L.) Kuntze
- Azalea dahurica K.Koch
- Rhododendron atrovirens (Ker Gawl.) Tagg
- Rhododendron dauricum f. albiflorum Turcz.) Y.C.Zhu
- Rhododendron dauricum var. atrovirens Ker Gawl.
- Rhododendron dauricum subsp. ledebourii (Pojark.) Alexandrova & P.A.Schmidt
- Rhododendron dauricum var. pallidum Regel
- Rhododendron dauricum var. roseum DC.
- Rhododendron dauricum var. sempervirens Sims
- Rhododendron ledebourii Pojark.
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Rhododendron dauricum is a species of flowering plant in the heath family Ericaceae native to forests and forest margins in Eastern Siberia, Mongolia, North China and Hokkaido, Japan.[1] The Latin specific epithet dauricum means "from Siberia"[2]: 70 – Transbaikal is also known as Dauria.
Description
Growing to 1.5 m (5 ft) tall and broad, it is a compact semi-evergreen shrub with purple flowers which open in late winter or early spring, before the dark green leaves appear.[3][4]
Phytochemistry
R. dauricum contains monoterpenoids daurichromenic acid (DCA) and confluentin (decarboxylated DCA) as well as rhododaurichromenic acids A and B which are structurally related to Cannabichromene.[5]
Cultivation
R. dauricum is the basis of the PJM hybrid (Rhododendron dauricum × Rhododendron carolinianum).
The cultivar 'Mid-winter', with bright pink flowers, has gained the Royal Horticultural Society's Award of Garden Merit.[4][6] It is hardy down to −20 °C (−4 °F), but like all rhododendrons requires a sheltered position in dappled shade and acid soil enriched with leaf mould.
