''Erechtites glomeratus'', common name New Zealand fireweed, or cutleaf burnweed, or (in Australia) fireweed or Cluster-headed fireweed, is a species of

plant Plants are predominantly photosynthetic eukaryotes of the kingdom Plantae. Historically, the plant kingdom encompassed all living things that were not animals, and included algae and fungi; however, all current definitions of Plantae exclud ...

in the sunflower family. It is native to

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

(all 6 states) and

New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island count ...

, and also naturalized on the

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(

Washington Washington commonly refers to: * Washington (state), United States * Washington, D.C., the capital of the United States ** A metonym for the federal government of the United States ** Washington metropolitan area, the metropolitan area centered on ...

Oregon Oregon () is a U.S. state, state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon's northern boundary with Washington (state), Washington, while the Snake River delineates much of it ...

, and

California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...

).Calflora taxon report, University of California, ''Senecio glomeratus'' Desf. ex Poir., Cutleaf burnweed
/ref> The name accepted by Australian authorities is ''Senecio glomeratus,'' and this is also the name accepted by

Plants of the World online Plants of the World Online (POWO) is an online database published by the Royal Botanic Gardens, Kew. It was launched in March 2017 with the ultimate aim being "to enable users to access information on all the world's known seed-bearing plants by ...

. The name ''Erechtites glomeratus'' is considered by APNI to be illegal. It was first described in 1817 by

René Louiche Desfontaines René Louiche Desfontaines (14 February 1750 – 16 November 1833) was a French botanist. Desfontaines was born near Tremblay, Ille-et-Vilaine , Tremblay in Brittany. He attended the Collège de Rennes and in 1773 went to Paris to study medi ...

as ''Senecio glomeratus,'' from a specimen cultivated in the Jardin des Plantes.

Description

''Erechtites glomeratus'' is an

annual Annual may refer to: * Annual publication, periodical publications appearing regularly once per year **Yearbook ** Literary annual * Annual plant * Annual report * Annual giving * Annual, Morocco, a settlement in northeastern Morocco * Annuals (b ...

perennial A perennial plant or simply perennial is a plant that lives more than two years. The term ('' per-'' + '' -ennial'', "through the years") is often used to differentiate a plant from shorter-lived annuals and biennials. The term is also wide ...

herb up to 200 cm (80 inches) tall. Leaves are lanceolate or linear with many pinnate lobes. One plant can produce as many as 120 yellow or purple

flower heads A pseudanthium (Greek for "false flower"; ) is an inflorescence that resembles a flower. The word is sometimes used for other structures that are neither a true flower nor a true inflorescence. Examples of pseudanthia include flower heads, compos ...

, each with 50 or more

disc floret The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae w ...

s but no

ray florets The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae w ...

.Flora of North America, ''Erechtites glomeratus'' (Desfontaines ex Poiret) de Candolle in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 6: 297. 1838.
/ref>

Gallery

Senecio glomeratus kz2.jpg Senecio glomeratus (Annual Fireweed) (24371975113).jpg Senecio glomeratus kz8.jpg

References

External links

photo of herbarium specimen at Missouri Botanical Garden
Senecioneae Flora of Australia Flora of New Zealand Plants described in 1817 {{Senecioneae-stub