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Polygala calcarea 
Summary
Polygala calcarea, the chalk milkwort, is a species of flowering plant in the family Polygalaceae, native to western Europe. It is a delicate mat-forming evergreen perennial growing to 5 cm (2 in) tall by 20 cm (8 in) broad, with spikes of small, vivid deep blue flowers in spring, and leathery, oval leaves.[1]
| Polygala calcarea | |
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fabales |
| Family: | Polygalaceae |
| Genus: | Polygala |
| Species: | P. calcarea
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| Binomial name | |
| Polygala calcarea | |
Etymology edit
The specific epithet calcarea means "growing in lime", though this plant will grow in a range of soils.[2]
Cultivation edit
It prefers sharply drained conditions, and is suitable for cultivation in an alpine garden.
Cultivars edit
The cultivar 'Lillet' has gained the Royal Horticultural Society's Award of Garden Merit.[3][4]
References edit
- ^ RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 1405332964.
- ^ Harrison, Lorraine (2012). RHS Latin for gardeners. United Kingdom: Mitchell Beazley. p. 224. ISBN 9781845337315.
- ^ "RHS Plantfinder - Polygala calcarea 'Lillet'". Retrieved 7 May 2018.
- ^ "AGM Plants - Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 80. Retrieved 7 May 2018.