Ceratostigma

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Ceratostigma
Ceratostigma plumbaginoides0.jpg
Ceratostigma plumbaginoides
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Core eudicots
Order: Caryophyllales
Family: Plumbaginaceae
Subfamily: Plumbaginoideae
Genus: Ceratostigma
Bunge
Species

See text

Synonyms

Valoradia Hochst.

Ceratostigma (/ˌsɛrətˈstɪɡmə, sɪˌræ-/;[1][2]), or leadwort, plumbago, is a genus of eight species of flowering plants in the family Plumbaginaceae, native to warm temperate to tropical regions of Africa and Asia. Common names are shared with the genus Plumbago.

They are flowering herbaceous plants, subshrubs, or small shrubs growing to 0.3–1 m (0.98–3.28 ft) tall. The leaves are spirally arranged, simple, 1–9 cm long, usually with a hairy margin. Some of the species are evergreen, others deciduous. The flowers are produced in a compact inflorescence, each flower with a five-lobed corolla; flower colour varies from pale to dark blue to red-purple. The fruit is a small bristly capsule containing a single seed.

Selected species[edit]

Cultivation and uses[edit]

Plants of this genus are valued in the garden for their late summer flower colour and their autumn leaf colour. The following varieties have gained the Royal Horticultural Society's Award of Garden Merit (confirmed 2017):[3]

  • C. plumbaginoides[4]
  • C. willmottianum[5][6]
  • C. willmottianum 'Forest Blue'[7]

Ceratostigma has been listed as one of the 38 plants that are used to prepare Bach flower remedies,[8] a kind of alternative medicine promoted for its effect on mental and emotional health.

References[edit]

  1. ^ Sunset Western Garden Book, 1995:606–607
  2. ^ "Pronunciation Guide". Fine Gardening. Retrieved 2016-01-23.
  3. ^ "AGM Plants - Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 17. Retrieved 24 January 2018.
  4. ^ "RHS Plant Selector - Ceratostigma plumbaginoides". Retrieved 14 June 2013.
  5. ^ Named to honour Ellen Willmott.
  6. ^ "RHS Plant Selector - Ceratostigma willmottianum". Retrieved 14 June 2013.
  7. ^ "RHS Plant Selector - Ceratostigma willmottianum 'Forest Blue'". Retrieved 14 June 2013.
  8. ^ D. S. Vohra (1 June 2004). Bach Flower Remedies: A Comprehensive Study. B. Jain Publishers. p. 3. ISBN 978-81-7021-271-3. Retrieved 2 September 2013.