Macledium spinosum

Macledium spinosum is a variable species of flowering plant in the family Asteraceae, that is endemic to the southern Cape regions of South Africa.[1]

Macledium spinosum
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Genus:
Macledium
Species:
M. spinosum
Binomial name
Macledium spinosum
(L.) S.Ortíz
Synonyms

Dicoma spinosa (L.) Druce.

Description
Macledium spinosum in habitat

A low, compact, spreading shrub, reaching a maximum of 50 cm in height. The leaves are small (15 x 5mm), spiny, with a grey, velvet leaf-surface.

The wide (20mm) protea-like flowerheads appear in Spring and Summer, and range in colour from white to purple.[2][3]

A closely related species, Macledium relhanioides, occurs in similar areas in the western Little Karoo and Overberg, but tends to be confined to quartzitic outcrops and quartz-fields.

Macledium relhanioides differs by having longer leaves (20mm) and smaller flowerheads (10mm) that have prominent pink, spiny bracts (but only rudimentary ray-florets).

Distribution and habitat

This species can be found from Worcester in the west, eastwards through the Little Karoo and Overberg regions, as far east as Somerset East.

It is most common in clay-rich, shale-derived soils, in Renosterveld and Succulent Karoo vegetation types.

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References
  1. http://redlist.sanbi.org/species.php?species=7462-7
  2. Ortiz, S. (2001). Reinstatement of the Genus Macledium Cass. (Asteraceae, Mutisieae): Morphological and Phylogenetic Arguments. Taxon, 50(3), 733-744. doi:10.2307/1223704
  3. https://www.operationwildflower.org.za/index.php/albums/shrubs/macledium-spinosum-thabo-8-4460

Further reading
  • KwaZulu-Natal Wild Flowers by Elsa Pooley, p. 446.
  • Lawalrée, A. & Mvukiyumwami, J. 1982. Le genre Dicoma Cassini (Asteraceae) en Afrique centrale. Bulletin du Jardin Botanique National de Belgique 52: 151-163.
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