Ageratum conyzoides

Summary 6

Ageratum conyzoides (Billygoat-weed, Chick weed, Goatweed, Whiteweed; Ageratum conycoides L., Ageratum obtusifolium Lam., Cacalia mentrasto Vell.) is native to Tropical America, especially Brazil. Herb 0.5–1 m. high, with ovate leaves 2–6 cm long, and flowers are white to mauve.

Description 7

Annual herb, 10-60 cm. Leaves: base usually blunt or rounded, rarely cordate. Florets blue or white. Phyllaries 3-4 mm, oblong, abruptly acuminate, sparingly if at all hairy on the back, erose and ciliate. Style arms exserted 1 mm from corolla tube.

Sources and Credits

  1. (c) Mark Hyde, Bart Wursten and Petra Ballings, some rights reserved (CC BY-NC), https://www.zimbabweflora.co.zw/speciesdata/images/15/158650-7.jpg
  2. (c) Ingrid P. Lin, some rights reserved (CC BY-NC-SA), https://collections.nmnh.si.edu/services/media.php?env=botany&irn=10302795
  3. (c) Ingrid P. Lin, some rights reserved (CC BY-NC-SA), https://collections.nmnh.si.edu/services/media.php?env=botany&irn=10302979
  4. (c) Günter Baumann, some rights reserved (CC BY-NC-SA), http://www.westafricanplants.senckenberg.de/root/index.php?page_id=14&id=67
  5. (c) Marco Schmidt, some rights reserved (CC BY-NC-SA), http://www.westafricanplants.senckenberg.de/root/index.php?page_id=14&id=67
  6. (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Ageratum_conyzoides
  7. (c) Mark Hyde, Bart Wursten and Petra Ballings, some rights reserved (CC BY-NC), http://eol.org/data_objects/30289917

More Info