Heterotheca

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Heterotheca
Heterotheca shevockii Flower flinton lg.jpg
Heterotheca shevockii
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: Astereae
Subtribe: Chrysopsidinae
Genus: Heterotheca
Cass.
Type species
Heterotheca lamarckii [1]
syn of H. subaxillaris [2]
Synonyms [3] [4]
  • DiplocomaD.Don ex D.Don
  • Chrysopsis subg. Ammodia(Nutt.) A.Gray
  • AmmodiaNutt.
  • Heterotheca sect. Ammodia(Nutt.) V.L.Harms
  • CalyciumElliott

Heterotheca, (common names goldenasters,camphorweed, or telegraph weed) [5] are North American plants in the family Asteraceae. [1] [6]

Contents

Etymology

Heterotheca comes from Ancient Greek ἕτεροςhéteros "other, different" and θήκηthḗkē "case, chest", and refers to the fact that, in some species in the genus, the cypselae (achenes containing seed) of the disk and ray florets have different shapes. [5] [7]

Etymology: The genus “Heterotheca” (Heterothe'ca:) is derived from the Greek heteros, “different,” and theke, “ovary,” from the unlike cypselas of the ray and disk florets.

https://southwestdesertflora.com/WebsiteFolders/All_Species/Asteraceae/Heterotheca%20subaxillaris,%20Camphorweed.html

Description, biology

These are annual and perennial herbs bearing daisy-like flower heads with yellow disc florets and usually yellow ray florets, associated with mesic to xeric habitats across North America. Several species now included in Heterotheca were previously classified in the genus Chrysopsis [3] [5]

Heterotheca species are often used as food plants by the larvae of some Lepidoptera species including Schinia lynx , Schinia nubila and Schinia saturata (all of which have been recorded on Heterotheca subaxillaris).

Chemistry

The leaf volatiles from which the name "camphorweed" is derived include camphor, but as a minor constituent (less than 2%); of the 41 documented volatiles in a study of Heterotheca subaxillaris , for example, caryophyllene, pinene, borneol, myrcene, and limonene each comprised over 5% of the total. [8]

Species

Sources: [3] [9]

Formerly included

Many species have been included in Heterotheca at various times in the past, but now regarded as more suitable for other genera. The most common of these is Chrysopsis , but others include Aster Bradburia Osbertia Munnozia Pityopsis + Tomentaurum. [3]

Related Research Articles

<i>Grindelia</i> Genus of flowering plants

Grindelia (gumweed) is a genus of plants native to the Americas belonging to the family Asteraceae. The genus was named for Latvian botanist David Hieronymus Grindel, 1776–1836.

<i>Chrysothamnus</i> Genus of flowering plants

Chrysothamnus, known as rabbitbrush, rabbitbush, and chamisa, are a genus of shrubs in the family Asteraceae. The native distribution is in the arid western United States, Canada, and northern Mexico. It is known for its bright white or yellow flowers in late summer.

<i>Chrysopsis</i> Genus of plants

Chrysopsis are plants in the family Asteraceae native to the southern and eastern United States. All the species are found in Florida, although some are found in other states as well.

<i>Chaetopappa</i> Genus of flowering plants

Chaetopappa is a genus of plants in the family Asteraceae which are known generally as leastdaisies.

Heterotheca oregona is a species of flowering plant in the family Asteraceae known by the common name Oregon false goldenaster. It is native to the west coast of Canada and the United States in British Columbia, Washington, Oregon, and California as far south as Los Angeles County.

<i>Heterotheca sessiliflora</i> Species of flowering plant

Heterotheca sessiliflora is a species of flowering plant in the family Asteraceae known by the common name sessileflower false goldenaster. It is native to California, Sonora, and Baja California.

Chrysopsis delaneyi, or DeLaney's goldenaster, is one of the endemic species to the U.S. state of Florida, recently discovered in the genus Chrysopsis, a small group of herbaceous plants of the family Asteraceae, known commonly as the "golden asters" and primarily native and restricted to Florida.

<i>Dieteria canescens</i> Species of flowering plant

Dieteria canascens is an annual plant or short lived perennial plant in the family Asteraceae, known by the common names hoary tansyaster and hoary-aster.

<i>Heterotheca shevockii</i> Species of plant

Heterotheca shevockii is a rare species of flowering plant in the family Asteraceae known by the common names Kern Canyon false goldenaster and Shevock's goldenaster. It is endemic to California in the United States, where it is known only from Kern County. It grows along a 21-mile stretch of the Kern River.

<i>Machaeranthera asteroides</i> Species of flowering plant

Machaeranthera asteroides, the fall tansyaster, is a North American species of plants in the sunflower family. It is native to the southwestern United States and northern Mexico.

<i>Heterotheca subaxillaris</i> Species of flowering plant

Heterotheca subaxillaris, known by the common name camphorweed, is a North American species of flowering plant in the family Asteraceae. It is widespread across much of the United States as well as Mexico and Belize.

Heterotheca fulcrata, known by the common name rockyscree false goldenaster, is a North American species of flowering plant in the family Asteraceae. It has been found in northern Mexico and in the western United States.

<i>Heterotheca canescens</i> Species of flowering plant

Heterotheca canescens, common name hoary goldenaster, is a North American species of flowering plant in the family Asteraceae. It has been found in northern Mexico and in the Great Plains of the central United States.

Heterotheca pumila, the alpine goldenaster, is a North American species of flowering plant in the family Asteraceae. It grows in alpine and subalpine regions in the mountains of the western United States. It has been found the Rocky Mountains in Wyoming, Colorado, Utah, and New Mexico.

<i>Heterotheca rutteri</i> Species of flowering plant

Heterotheca rutteri, the Huachuca goldenaster or Rutter's false goldenaster, is a rare North American species of flowering plant in the family Asteraceae. It has been found only in the Huachuca and Santa Rita Mountains of southern Arizona and northern Sonora.

Heterotheca stenophylla, called the stiffleaf goldenaster, is a North American species of flowering plant in the family Asteraceae. It grows on the Great Plains of the central United States from South Dakota south to Texas and New Mexico.

<i>Heterotheca villosa</i> Species of flowering plant

Heterotheca villosa, commonly known as the hairy goldenaster, is a species of flowering plant in the family Asteraceae found in central and western North America.

Heterotheca viscida, called the cliff goldenaster, is a North American species of flowering plant in the family Asteraceae. It grows on cliffs and ledges in mountainous regions. It grows in the southwestern United States, primarily in Arizona, New Mexico and southern Texas with reports of isolated populations in Nevada, southeastern Idaho, and southeastern Colorado.

Heterotheca zionensis, the Zion goldenaster, is a North American species of flowering plant in the family Asteraceae. It grows in Utah, Arizona, New Mexico and western Texas. The plant has also reportedly been found in southeastern Idaho and northwestern Colorado, but these are most likely introductions.

<i>Heterotheca hartmanii</i> Species of flowering plant

Heterotheca hartmanii is a species of goldenaster that was only scientifically described and named in 2020 and commonly called the aspen goldenaster or for its association with that biome. It mostly grows in northwest Colorado with a few occurrences in southwest Wyoming. It is very similar to Heterotheca pedunculata which grows in similar environments in the desert southwest of the United States.

References

  1. 1 2 "Heterotheca". Tropicos . Missouri Botanical Garden.
  2. ↑ "Heterotheca". The Plant List . Missouri Botanical Garden. Royal Botanic Gardens, Kew.{{cite web}}: CS1 maint: others (link) Note that this website has been superseded by World Flora Online
  3. 1 2 3 4 Flann, C (ed) 2009+ Global Compositae Checklist
  4. ↑ The Plant List, search for Heterotheca
  5. 1 2 3 Semple, John C. (2006). "Heterotheca". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). Vol. 20. New York and Oxford: Oxford University Press. Retrieved 16 July 2016– via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  6. ↑ Cassini, Alexandre Henri Gabriel de. 1817. Bulletin des Sciences, par la Societe Philomatique 1817: 137
  7. 1 2 C. Williamson, Gerald (2016). "US Wildflower - Camphorweed, Camphor Weed, False Goldenaster - Heterotheca subaxillaris". US Wildflowers. Retrieved 16 July 2016.
  8. ↑ Lincoln, D.E.; Lawrence, B.M. (1984). "The volatile constituents of camphorweed, Heterotheca subaxillaris". Phytochemistry. 23 (4): 933–934. doi:10.1016/S0031-9422(00)85073-6.
  9. ↑ "Heterotheca". County-level distribution maps from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). 2014.
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