Weeds of Thailand

Taxonomy of weed species found in Thailand

Sphaeranthus  

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Description:

Annual or perennial herbs, usually aromatic and glandular. Leaves alternate. Capitula heterogamous, few-flowered, arranged on a receptacle in dense hemispheric, ovoid or spherical clusters, which are terminal on the stems and branches or in the axils of the leaves. Tips of the bracts of the clusters and the bisexual florets usually purple. Subtending bracts of the capitula 2-4(-15), sometimes forming a basal involucre. Bisexual florets in the centre of the capitulum, fewer than the outer female florets. Achenes ± cylindric or ellipsoid.  In this genus, the apparent capitulum is in fact a cluster of capitula. Note - a similar purple-flowered species with winged stems usually growing in marshy places is Epaltes gariepina.

Licensehttp://creativecommons.org/licenses/by-nc/3.0/
Rights holder/AuthorMark Hyde, Bart Wursten, Petra Ballings, Flora of Zimbabwe
Sourcehttp://www.zimbabweflora.co.zw/speciesdata/genus.php?genus_id=1491

Sphaeranthus:

Sphaeranthus is a genus of Asian, African, and Australian plants in the stinkwort tribe within the daisy family.[2][3]

Species[1]
  1. Sphaeranthus africanus - Tanzania, Madagascar, Iran, Indian Subcontinent, China, Southeast Asia, northern Australia
  2. Sphaeranthus amaranthoides - Sri Lanka, Kerala, Tamil Nadu, Karnataka
  3. Sphaeranthus angolensis - Angola
  4. Sphaeranthus angustifolius - Madagascar
  5. Sphaeranthus bullatus - Tanzania
  6. Sphaeranthus chandleri - Uganda
  7. Sphaeranthus confertifolius - Kenya
  8. Sphaeranthus cristatus - Tanzania
  9. Sphaeranthus epigaeus - South Africa
  10. Sphaeranthus fischeri - Tanzania
  11. Sphaeranthus flexuosus - South Africa, Zambia
  12. Sphaeranthus foliosus
  13. Sphaeranthus greenwayi - Tanzania
  14. Sphaeranthus indicus - Indian Subcontinent, China, Southeast Asia, northern Australia
  15. Sphaeranthus kirkii - Tanzania
  16. Sphaeranthus mimetes - Tanzania
  17. Sphaeranthus mozambiquensis - Mozambique
  18. Sphaeranthus neglectus - South Africa, Madagascar
  19. Sphaeranthus oppositifolius - Tanzania
  20. Sphaeranthus peduncularis - South Africa
  21. Sphaeranthus ramosus - Ethiopia
  22. Sphaeranthus randii - Zimbabwe, Tanzania
  23. Sphaeranthus salinarum
  24. Sphaeranthus samburuensis - Kenya
  25. Sphaeranthus senegalensis
  26. Sphaeranthus similis - Angola
  27. Sphaeranthus spathulatus - Tanzania
  28. Sphaeranthus steetzii - Ethiopia
  29. Sphaeranthus strobiliferus - Tanzania
  30. Sphaeranthus stuhlmannii - Tanzania
  31. Sphaeranthus suaveolens - Tanzania, Kenya, Burundi
  32. Sphaeranthus ukambensis - Kenya
  33. Sphaeranthus wattii - South Africa
  34. Sphaeranthus zavattarii - Ethiopia
formerly included[1]

several species now in other genera: of Athroisma Pterocaulon

References[edit]

  1. ^ a b c d Flann, C (ed) 2009+ Global Compositae Checklist
  2. ^ Linnaeus, Carl von. 1753. Species Plantarum 2: 927 in Latin
  3. ^ Tropicos, Sphaeranthus L.
Wikimedia Commons has media related to Sphaeranthus.

Licensehttp://creativecommons.org/licenses/by-sa/3.0/
Rights holder/AuthorWikipedia
Sourcehttp://en.wikipedia.org/w/index.php?title=Sphaeranthus&oldid=641854552
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith