Conyza bonariensis




Family Asteraceae (alt. Compositae)
Scientific name Conyza bonariensis (L.) Cronquist
Synonyms Conyza albida Willdenow ex Sprengel; Conyza ambigua de Candolle; Conyza chenopodioides de Candolle; Conyza crispa (Pourreau) Ruprecht; Conyza erigeroides de Candolle; Conyza floribunda Kunth; Conyza linifolia Willdenow; Conyza naudinii Bonnet; Conyza sinuata Elliott; Conyzella linifolia (Willdenow) Greene; Erigeron albidus (Willdenow ex Sprengel) A. Gray; Erigeron bonariensis; Erigeron contortus Desfontaines ex Persoon; Erigeron crispus Pourreau; Erigeron floribundus (Kunth) Schultz Bipontinus; Erigeron linearifolius Cavanilles; Erigeron linifolius Willdenow; Erigeron sordidus Gillies ex Hooker & Arnott; Erigeron transsilvanicus Schur; Leptilon bonariense (L.) Small; Leptilon linifolium (Willdenow) Small; Marsea bonariensis (L.) V. M. Badillo
Common name (Japanese common name) arechi-no-giku [bush wild aster]
(English common name) asthmaweed, flax-leaf fleabane, wavy-leaf fleabane
Distribution (Japan) Hokkaido, Honshu, Shikoku, Kyushu, Okinawa
(Other nations) [native] South America
Chromosomal number 2n=54
Description Plants 30-60cm. Leaves 5-13cm length, 0.5-2cm width. Flowers head 5mm, flowering in June to November. Annual or winter annual plants.
Reference Conyza bonariensis (L.) Cronquist
Conyza bonariensis (Linnaeus) Cronquist
Conyza bonariensis (L.) Cronq.
Conyza bonariensis (L.) Cronquist
Note Naturalized plants (first recorded at Ishigaki Island in 1892).



July 2007 at roadside July 2007 at roadside July 2007 at roadside



July 2007 at roadside July 2007 at roadside July 2007 at roadside



July 2007 at roadside