Erechtites

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Erechtites
Erechtites hieracifolia2.jpg
Erechtites hieraciifolius
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Subfamily: Asteroideae
Tribe: Senecioneae
Genus: Erechtites
Raf.
Type species
Erechtites praealtus Raf.,
syn of E. hieraciifolius
[1] [2]
Synonyms [2]
  • Senecio sect. Erechtites(Raf.) Baill.

Erechtites is a genus of flowering plants in the daisy family known commonly as fireweeds or burnweeds. They are native to the Americas and Australia, [3] [4] but some species are widely distributed weeds. [3] [5] [6]

Contents

Description

Erechtites consists of annual or perennial herbs with large taproots and very often with a pungent odor. Leaves are usually ovate or lanceolate (sometimes pinnately lobed or pinnatifid). Flower heads may sometimes contain as many as 100 yellow or white (rarely pink) disc florets but no ray florets. [3]

Taxonomy and species

Some species in this genus are treated as members of Senecio by some authors, and several other species are considered variants of Erechtites hieraciifolius , so there may be as few as 5 distinct species in this genus. In particular, not all authors agree on whether to include a dozen or so species native to Australia and New Zealand in Erechtites. [7] [8]

Species

27 species are recognised by Plants of the World Online [9]

Alternatively, a more limited genus circumscription restricts the genus to New World species and only recognises six species in two sections: [10]

The genus name Erechtites is considered masculine by some botanists and feminine by others. Hence some species names may end in "-us" or "-a," for example, Erechtites valerianifolius versus E. valerianifolia. International Code of Botanical Nomenclature (Art. 62.4) specifies that generic names ending in "-ites" are to be treated as masculine, hence the "-us" ending in such cases is to be preferred over the "-a" ending. [3] [11]

Related Research Articles

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<i>Erechtites hieraciifolius</i> Species of plant in the family Asteraceae

Erechtites hieraciifolius is a plant in the daisy family, Asteraceae. It is native to the Americas, but is found many places around the world having been introduced by human activity. It is introduced in Hawaii, China, and Southeast Asia.

Fireweed is a perennial herbaceous plant in the willowherb family (Onagraceae).

<i>Senecio crassiflorus</i> Species of flowering plant

Senecio crassiflorus, in Portuguese: margarida-das-dunas, one of the native South American Senecio and an herbaceous dune dwelling perennial.

<i>Senecio madagascariensis</i> Species of flowering plant

Senecio madagascariensis, also known as Madagascar ragwort, is a species of the genus Senecio and family Asteraceae that is native to Southern Africa. Other common names include Madagascar groundsel and fireweed. It has been included on the noxious weeds list for Hawaii and the reject list for Australia. S.madagascariensis is the diploid cytotype of S.inaequidens.

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<i>Scapisenecio pectinatus</i> Species of flowering plant

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<i>Erechtites valerianifolius</i> Species of flowering plant

Erechtites valerianifolius, common name tropical burnweed is a New World species of plants in the sunflower family. It is native to Mexico, Central America, South America, and the West Indies. It is also naturalized as a weed in much of the tropical Old World.

<i>Erechtites glomeratus</i> Species of flowering plant

Erechtites glomeratus, common name New Zealand fireweed, or cutleaf burnweed, or fireweed or Cluster-headed fireweed, is a species of plant in the sunflower family. It is native to Australia and New Zealand, and also naturalized on the Pacific Coast of the United States.

<i>Senecio quadridentatus</i> Species of flowering plant

Senecio quadridentatus is native to Australia and New Zealand. In New Zealand it is known by its Māori name pahokoraka or pekapeka. Senecio quadridentatus is an annual or perennial herbaceous flowering plant in the family Asteraceae. It is also known as Erechtites quadridentata Labill by the synonyms.

<i>Senecio minimus</i> Species of plant

Senecio minimus, commonly known as toothed fireweed and coastal burnweed, is a species of plant in the sunflower family. It is native to Australia and New Zealand, and also naturalized on the Pacific Coast of the United States.

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Scapisenecio is a genus of flowering plant in the family Asteraceae, native to south-eastern Australia, particularly Tasmania. The genus was established in 2020.

References

  1. The Plant List search for Erechtites
  2. 1 2 Tropicos, Erechtites Raf.
  3. 1 2 3 4 "Erechtites Rafinesque". Flora of North America .
  4. Coleman, M.; Liston, A.; Kadereit, J. W.; Abbott, R. J. (2003). "Repeat intercontinental dispersal and Pleistocene speciation in disjunct Mediterranean and desert Senecio (Asteraceae)". American Journal of Botany. 90 (10): 1446–54. doi:10.3732/ajb.90.10.1446. PMID   21659096.
  5. "Erechtites hieraciifolius (L.) Raf. ex DC". Pacific Island Ecosystems at Risk (PIER).
  6. "Erechtites valerianifolia (Wolf) DC". Pacific Island Ecosystems at Risk (PIER).
  7. Erechtites Hieracifolia. Fireweed., Drugs and Medicines of North America, 1884-1887 by John Uri Lloyd and Curtis G. Lloyd. Online edition by Henriette Kress, 2002-2009
  8. Jepson Manual Treatment
  9. "Erechtites Raf." Plants of the World Online . Royal Botanic Gardens, Kew. Retrieved 27 March 2022.
  10. FUNEZ, LUÍS A.; HASSEMER, GUSTAVO; PERONI, NIVALDO; DRECHSLER-SANTOS, ELISANDRO R. (4 March 2021). "<strong>Taxonomic notes on <em>Erechtites</em> (Asteraceae: Senecioneae)</strong>". Phytotaxa. 489 (2): 155–170. doi:10.11646/phytotaxa.489.2.4. eISSN   1179-3163. ISSN   1179-3155.
  11. International Code of Nomenclature for algae, fungi, and plants (Melbourne Code) article 62.4