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Description

provided by Flora of Zimbabwe
Shrubs or small trees, occasionally suffrutices. Leaves opposite; lamina with bacterial nodules (easily visible as black dots when leaf is held up to the light). Flowers few-many, borne in corymbs, very lax to capitate. Bracts connate, stipule-like. Flowers bisexual, 4-merous. Corolla white to creamy or greenish. Ovary 2-locular. Fruit a spherical drupe, in our species black and shining when ripe. Seeds 2, hemispheric.
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Mark Hyde, Bart Wursten and Petra Ballings
bibliographic citation
Hyde, M.A., Wursten, B.T. and Ballings, P. (2002-2014). Pavetta Flora of Zimbabwe website. Accessed 28 August 2014 at http://www.zimbabweflora.co.zw/speciesdata/genus.php?genus_id=1410
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Mark Hyde
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Bart Wursten
author
Petra Ballings
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Flora of Zimbabwe

Pavetta

provided by wikipedia EN

Pavetta is a genus of flowering plants in the family Rubiaceae. It comprises about 360 species of trees, evergreen shrubs and sub-shrubs. It is found in woodlands, grasslands and thickets in sub-tropical and tropical Africa and Asia. The plants are cultivated for their simple but variable leaves, usually opposite but also occur in triple whorls. The leaves are often membranous with dark bacterial nodules. Pavetta has small, white, tubular flowers, sometimes salviform or funnel-shaped with 4 spreading petal lobes. The flowers are carried on terminal corymbs or cymes.[1]

Gousiekte

Two Pavetta species, Pavetta harborii and Pavetta schummaniana, harbor endophytic Burkholderia bacteria in visible leaf nodules and are known to cause gousiekte, a cardiotoxicosis of ruminants characterised by heart failure four to eight weeks after ingestion of certain rubiaceous plants.[2]

Species

Selected species include:

Pictures

References

  1. ^ Encyclopaedia of Garden Plants, C. Brickell, 1996, London, Royal Horticultural Society, ISBN 0-7513-0436-0.
  2. ^ Verstraete B, Van Elst D, Steyn H, Van Wyk B, Lemaire B, Smets E, Dessein S (2011). "Endophytic bacteria in toxic South African plants: identification, phylogeny and possible involvement in gousiekte". PLOS ONE. 6 (4): e19265. Bibcode:2011PLoSO...619265V. doi:10.1371/journal.pone.0019265. PMC 3082559. PMID 21541284.

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Pavetta: Brief Summary

provided by wikipedia EN

Pavetta is a genus of flowering plants in the family Rubiaceae. It comprises about 360 species of trees, evergreen shrubs and sub-shrubs. It is found in woodlands, grasslands and thickets in sub-tropical and tropical Africa and Asia. The plants are cultivated for their simple but variable leaves, usually opposite but also occur in triple whorls. The leaves are often membranous with dark bacterial nodules. Pavetta has small, white, tubular flowers, sometimes salviform or funnel-shaped with 4 spreading petal lobes. The flowers are carried on terminal corymbs or cymes.

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Wikipedia authors and editors
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wikipedia EN