Hormathophylla spinosa

Hormathophylla spinosa, formerly Alyssum spinosum, the spiny madwort, is a species of flowering subshrub in the genus Hormathophylla of the family Brassicaceae, native to open rocky sites in south-eastern France and southern Spain. It forms a compact mound up to 30 cm in height. Dense spiny branches of tiny, toothed grey-green leaves bear racemes of white flowers at the tips in early summer.[1]

Alyssum spinosum
Scientific classification
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H. spinosum
Binomial name
Hormathophylla spinosum
Synonyms

It is especially cultivated in rock gardens. The cultivar H spinosa 'Roseum',[2] with pink flowers, has gained the Royal Horticultural Society's Award of Garden Merit.

References

  1. RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 978-1405332965.
  2. "RHS Plant Selector - Hormathophylla spinosa 'Roseum'". Royal Horticultural Society. Retrieved 12 February 2020.
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