Weeds of Thailand

Taxonomy of weed species found in Thailand

Conyza  

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Synonym:

Conyza coulteri A. Gray, Proc. Amer. Acad. Arts 7: 355. 1868

Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/AuthoreFloras.org Copyright © Missouri Botanical Garden
Sourcehttp://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250068908

National NatureServe Conservation Status:
United States

Rounded National Status Rank: NNR - Unranked

Licensehttp://creativecommons.org/licenses/by-nc/3.0/
Rights holder/AuthorNatureServe
Sourcehttp://explorer.natureserve.org/servlet/NatureServe?searchName=Laennecia+coulteri

NatureServe Conservation Status:

Rounded Global Status Rank: G5 - Secure

Licensehttp://creativecommons.org/licenses/by-nc/3.0/
Rights holder/AuthorNatureServe
Sourcehttp://explorer.natureserve.org/servlet/NatureServe?searchName=Laennecia+coulteri

Comments:

J. M. Kingsbury (1964) reported Laënnecia coulteri (as Conyza coulteri) to be toxic to livestock.

Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/AuthoreFloras.org Copyright © Missouri Botanical Garden
Sourcehttp://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250068908

Description:

Annual or perennial herbs or shrubs. Leaves alternate, entire, toothed or pinnatifid. Capitula heterogamous. Phyllaries in 2-many series, narrowly linear, lanceolate or oblong, the outer smaller. Outer female florets white, sordid, greenish or yellow in 2-many series, fertile, filiform, either bearing rays or minutely 3-4(-5)-lobed or truncate. Disk florets whitish-yellow or greenish, bisexual but often sterile, tube with triangular lobes. Pappus accrescent, with numerous barbellate setae.

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=1480

Associations:

Foodplant / spot causer
Cercosporella anamorph of Cercosporella virgaureae causes spots on live leaf of Conyza

Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/AuthorBioImages, BioImages - the Virtual Fieldguide (UK)
Sourcehttp://www.bioimages.org.uk/html/Conyza.htm

Statistics of barcoding coverage:

Barcode of Life Data Systems (BOLD) Stats
Specimen Records:53
Specimens with Sequences:67
Specimens with Barcodes:54
Species:10
Species With Barcodes:9
Public Records:13
Public Species:6
Public BINs:0

Licensehttp://creativecommons.org/licenses/by/3.0/
Rights holder/AuthorSujeevan Ratnasingham, Paul D.N. Hebert, Barcode of Life Data Systems (BOLD)
Sourcehttp://www.boldsystems.org/index.php/Taxbrowser_Taxonpage?taxid=121518

Barcode data:

Access Published & Released Data: Download FASTA File

Licensehttp://creativecommons.org/licenses/by/3.0/
Rights holder/AuthorSujeevan Ratnasingham, Paul D.N. Hebert, Barcode of Life Data Systems (BOLD)
Sourcehttp://www.boldsystems.org/index.php/Taxbrowser_Taxonpage?taxid=121518

Conyza:
Not to be confused with Cichorium intybus - more commonly called "chicory", but also sometimes called "horseweed"

Conyza (horseweed, butterweed or fleabane) is a genus of flowering plants in the sunflower family.[4][5][6][7]

They are native to tropical and warm temperate regions throughout the world, and also north into cool temperate regions in North America and eastern Asia. The New World species of the genus are closely related to Erigeron (also known as fleabanes).[8]

The species are annual or perennial herbaceous plants, rarely shrubs, growing to 1-2 m tall. The stems are erect, branched, with alternate leaves. The flowers are produced in inflorescences, with several inflorescences loosely clustered on each stem.[8]

Many plant species of the Conyza genus are ruderal species and some have been found to be resistant to the herbicide glyphosate, in some cases.[9]


Conyza bonariensis seed heads and flowers

Species[3]
  1. Conyza abyssinica Sch.Bip. ex A.Rich.
  2. Conyza adenocarpa Dalzell & A.Gibson
  3. Conyza ageratoides DC.
  4. Conyza agnewii Mesfin
  5. Conyza agrostophylla F.G.Davies
  6. Conyza alluaudii Humbert
  7. Conyza amboinica Crantz
  8. Conyza andina J.Rémy
  9. Conyza andringitrana Humbert
  10. Conyza androrangensis Humbert
  11. Conyza angustifolia Roxb.
  12. Conyza arabidifolia Remy
  13. Conyza arenosa
  14. Conyza atrixioides Chiov.
  15. Conyza attenuata DC.
  16. Conyza attenuata Wall.
  17. Conyza auriculifera R.E.Fr.
  18. Conyza bakeri Humbert
  19. Conyza bampsiana (Lisowski) Lisowski
  20. Conyza baumii (O.Hoffm.) Wild
  21. Conyza blinii H.Lév.
  22. Conyza boelckei Cabrera
  23. Conyza boranensis (S.Moore) Cufod.
  24. Conyza burkartii Zardini
  25. Conyza burmeana Miq.
  26. Conyza bustillosiana J.Rémy
  27. Conyza capillipes S.Moore
  28. Conyza cardaminifolia Kunth
  29. Conyza catharinensis Cabrera
  30. Conyza chionea S.Díaz & A.Correa
  31. Conyza clarenceana (Hook.f.) Oliv. & Hiern
  32. Conyza collina Phil.
  33. Conyza copiapina Phil.
  34. Conyza cordata Kuntze
  35. Conyza coronopifolia Kunth
  36. Conyza dentonae McVaugh
  37. Conyza depilis Phil.
  38. Conyza deserticola Phil.
  39. Conyza edelbergii Rech.f.
  40. Conyza eucoma Miq.
  41. Conyza fastigiata Willd.
  42. Conyza feae (Bég.) Wild
  43. Conyza flabellata Mesfin
  44. Conyza foliosa Phil.
  45. Conyza fruticulosa O.Hoffm.
  46. Conyza gallianii Chiov.
  47. Conyza garnieri Klatt
  48. Conyza gayana Phil.
  49. Conyza gigantea O.Hoffm.
  50. Conyza glabrata Phil.
  51. Conyza glabrescens Pax
  52. Conyza glandulitecta Cabrera
  53. Conyza gonania
  54. Conyza grahamii DC.
  55. Conyza hirtella DC.
  56. Conyza hochstetteri Sch.Bip. ex A.Rich.
  57. Conyza hypoleuca A.Rich.
  58. Conyza incana (Vahl) Willd.
  59. Conyza japonica (Thunb.) Less. ex Less.
  60. Conyza kahuzica Lisowski
  61. Conyza laevigata (Rich.) Pruski
  62. Conyza larrainiana J.Rémy
  63. Conyza lasseriana Aristeg.
  64. Conyza lateralis Phil.
  65. Conyza leucantha (D.Don) Ludlow & P.H.Raven
  66. Conyza lignescens Rusby
  67. Conyza limosa O.Hoffm.
  68. Conyza longipedunculata Klatt
  69. Conyza lorentzii Griseb.
  70. Conyza loueirii Poir.
  71. Conyza macrophylla Spreng.
  72. Conyza magnimontana Cabrera
  73. Conyza mandrarensis Humbert
  74. Conyza maxima Zoll. & Moritzi
  75. Conyza megensis F.G.Davies
  76. Conyza messeri Pic.Serm.
  77. Conyza microcephala Hemsl.
  78. Conyza mima S.F.Blake
  79. Conyza minutiflora Phil.
  80. Conyza mixta Fouc. & Neyr.
  81. Conyza modesta Kunth
  82. Conyza molleri Phil.
  83. Conyza monorchis (Griseb.) Cabrera
  84. Conyza montigena S.Moore
  85. Conyza muliensis Y.L.Chen
  86. Conyza myriocephala
  87. Conyza nana Sch.Bip. ex Oliv. & Hiern
  88. Conyza neglecta R.E.Fr.
  89. Conyza nemoralis Phil.
  90. Conyza neocandolleana Humbert
  91. Conyza newii Oliv. & Hiern
  92. Conyza obscura DC.
  93. Conyza oligantha Cabrera
  94. Conyza pallidiflora R.E.Fr.
  95. Conyza pampeana (Parodi) Cabrera
  96. Conyza pannosa Webb
  97. Conyza pectinata (Sch.Bip.) Sch.Bip. ex Oliv. & Hiern
  98. Conyza pencana Phil.
  99. Conyza perennis Hand.-Mazz.
  100. Conyza perijaensis S.Díaz & A.Correa
  101. Conyza perrieri Humbert
  102. Conyza pinnata (L.f.) Kuntze
  103. Conyza pinnatifida (Thunb.) Less.
  104. Conyza podocephala DC.
  105. Conyza popayanensis (Hieron.) Pruski
  106. Conyza principis Gagnep.
  107. Conyza procumbens Balb.
  108. Conyza prolialba Cuatrec.
  109. Conyza pterocaulon Bolle
  110. Conyza pulsatilloides O.Hoffm.
  111. Conyza pusilla Houtt.
  112. Conyza pycnophylla Phil.
  113. Conyza pyrrhopappa Sch.Bip. ex A.Rich.
  114. Conyza ramosissima Cronquist
  115. Conyza reitziana Cabrera
  116. Conyza retirensis Cabrera
  117. Conyza ruderalis Phil.
  118. Conyza rufa Wall. ex DC.
  119. Conyza ruwenzoriensis (S.Moore) R.E.Fr.
  120. Conyza saltensis Cabrera
  121. Conyza sarmentosa Humbert
  122. Conyza scabrida DC.
  123. Conyza schimperi Sch.Bip. ex A.Rich.
  124. Conyza schlechtendalii Bolle
  125. Conyza semipinnatifida Wall. ex DC.
  126. Conyza sennii Chiov.
  127. Conyza serrana Cabrera
  128. Conyza setulosa F.Phil. ex Phil.
  129. Conyza spiciformis (Griseb.) Zardini
  130. Conyza spiculosa (Hook. & Arn.) Zardini
  131. Conyza spinellosa Miq.
  132. Conyza spinosa (Sch.Bip.) Sch.Bip. ex Oliv. & Hiern
  133. Conyza stenophylla Phil.
  134. Conyza steudelii Sch.Bip. ex A.Rich.
  135. Conyza subscaposa O.Hoffm.
  136. Conyza subspicata Phil.
  137. Conyza suffruticosa Phil.
  138. Conyza sumatrensis (S.F.Blake) Pruski & G.Sancho
  139. Conyza tenera Phil.
  140. Conyza thermarum Phil.
  141. Conyza thesiifolia Kunth
  142. Conyza tigrensis Oliv. & Hiern
  143. Conyza trihecatactis (S.F.Blake) Cuatrec.
  144. Conyza tunariensis (Kuntze) Zardini
  145. Conyza uliginosa (Benth.) Cuatrec.
  146. Conyza ulmifolia (Burm.f.) Kuntze
  147. Conyza urticifolia (Baker) Humbert
  148. Conyza valdiviana Phil.
  149. Conyza varia (Webb) Wild
  150. Conyza variegata Sch.Bip. ex A.Rich.
  151. Conyza vernonioides (Sch.Bip. ex A.Rich.) Wild
  152. Conyza viguieri Humbert
  153. Conyza viscida
  154. Conyza welwitschii (S.Moore) Wild

References[edit]

  1. ^ Tropicos search for Conyza
  2. ^ Tropicos Conyza argentea Lam.
  3. ^ a b Flann, C (ed) 2009+ Global Compositae Checklist
  4. ^ Lessing, Christian Friedrich. 1832. Synopsis Generum Compositarum 203–204 in Latin
  5. ^ Tropicos, Conyza Less.
  6. ^ Cronquist, A. 1943. The separation of Erigeron from Conyza. Bull. Torrey Bot. Club 70: 629–632. 1943.
  7. ^ Nesom, G. L. 1990c. Further definition of Conyza (Asteraceae: Astereae). Phytologia 68: 229–233.
  8. ^ a b Flora of North America, Horseweed, Conyza Lessing
  9. ^ Zelaya, I. A.; Owen, M. D. K.; Vangessel, M. J. (2007), Transfer of glyphosate resistance: evidence of hybridization in Conyza (Asteraceae), American Journal of Botany 94 (4): 660–73, doi:10.3732/ajb.94.4.660, PMID 21636434 
Licensehttp://creativecommons.org/licenses/by-sa/3.0/
Rights holder/AuthorWikipedia
Sourcehttp://en.wikipedia.org/w/index.php?title=Conyza&oldid=633946045

National Distribution:
United States

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

Licensehttp://creativecommons.org/licenses/by-nc/3.0/
Rights holder/AuthorNatureServe
Sourcehttp://explorer.natureserve.org/servlet/NatureServe?searchName=Laennecia+coulteri
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith