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Pedaliaceae (sesame family)

Life > eukaryotes > Archaeoplastida > Chloroplastida > Charophyta > Streptophytina > Plantae (land plants) > Tracheophyta (vascular plants) > Euphyllophyta > Lignophyta (woody plants) > Spermatophyta (seed plants) > Angiospermae (flowering plants) >  Eudicotyledons >  Core Eudicots >  Asterids >  Euasterid I > Order: Lamiales

There are about 13 genera and 70 species worldwide (mainly tropics and subtropics) of which eight genera and 31 species are indigenous to southern Africa, mainly in semi-arid regions.

Distinguishing characteristics

  • Herbs or shrubs with mucilaginous hairs.
  • Flowers are large and symmetric in only one axis (monosymmetric or zygomorphic).
  • Ovary is superior and has axile placentation.
  • Fruits in many species have protuberances such as hooks and prickles.

Information from Angiosperm Phylogeny Website.

Genera indigenous to southern Africa

This list from Smithies (2000) excludes the naturalised genera Ibicella and Proboscidea, which are placed in the Martyniaceae (following Angiosperm Phylogeny Website).

Ceratotheca

There are five species of which four occur in southern Africa.

 

Dicerocaryum

Three species (tropical and subtropical Africa), of which two occur in southern Africa.

 

Harpagophytum

Two species, endemic to southern Africa.

 

Holubia

One species: Holubia saccata, endemic to southern Africa.

 

Pterodiscus

All 18 species are indigenous to Africa and four of them occur in southern Africa.

 

Rogeria

Of the six species, five are found in Africa and one in Brazil. Four of them occur in southern Africa.

 

Sesamothamnus

About five species, all African, of which three occur in southern Africa.

 

Sesamum (sesame genus)

About 15 species, indigenous to Africa through to Europe through to India and Sri Lanka. There are 11 species in southern Africa of which one (Sesamum indicum - sesame) is an escapee.

 

Other genera, cultivated in southern Africa

From Glen (2002). As each of these genera has only one representative cultivated in southern Africa, the species name is provided.

Uncarina sakalava

Indigenous to Madagascar.

 

Trapella sinensis (Hishi-modoki)

Indigenous to China, Korea and Japan.

 

Publications

  • Glen, H.F. 2002. Cultivated Plants of Southern Africa. Jacana, Johannesburg.

  • Smithies, S.J. 2000. Pedaliaceae. In: Seed Plants of Southern Africa (ed. O.A. Leistner). Strelitzia 10: 436-440. National Botanical Institute, Pretoria.

 

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