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Associations

provided by BioImages, the virtual fieldguide, UK
Foodplant / pathogen
Aphelenchoides ritzemabosi infects and damages limp, discoloured leaf of Aster

Plant / resting place / within
puparium of Calycomyza humeralis may be found in leaf-mine of Aster

Foodplant / spot causer
Cercosporella anamorph of Cercosporella virgaureae causes spots on live leaf of Aster

Foodplant / miner
larva of Liriomyza eupatorii mines leaf of Aster
Other: minor host/prey

Foodplant / miner
larva of Liriomyza pusilla mines leaf of Aster
Other: minor host/prey

In Great Britain and/or Ireland:
Foodplant / miner
larva of Liriomyza strigata mines leaf of Aster

Foodplant / miner
larva of Nemorimyza posticata mines leaf of Aster

Plant / resting place / within
puparium of Ophiomyia maura may be found in leaf of Aster

Foodplant / pathogen
Phialophora anamorph of Phialophora asteris infects and damages live leaf of Aster

Foodplant / saprobe
loosely gregarious, sometimes linearly arranged, covered then projecting pycnidium of Phomopsis coelomycetous anamorph of Phomopsis achilleae var. asteris is saprobic on dead stem of Aster

Foodplant / feeds on
Phytonemus pallidus feeds on live Aster
Other: major host/prey

Foodplant / miner
larva of Trypeta zoe mines leaf of Aster

Foodplant / miner
larva of Vidalia spinifrons mines leaf of Aster

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Description

provided by Flora of Zimbabwe
Annual or perennial herbs. Leaves linear to ovate, simple; margin entire or ± dentate. Capitula heterogamous, radiate; ray florets female, in 1 series, often blue or violet; disk florets tubular, bisexual, yellow, their lobes spreading, sometimes with red margins. Phyllaries 3-4-seriate, imbricate; outer much shorter than inner. Achenes oblong, flattened, ± hairy and always glandular. Pappus hairs scabrid, whitish to yellowish, in 2, sometimes indistinct, rows.
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Mark Hyde, Bart Wursten and Petra Ballings
bibliographic citation
Hyde, M.A., Wursten, B.T. and Ballings, P. (2002-2014). Aster Flora of Zimbabwe website. Accessed 28 August 2014 at http://www.zimbabweflora.co.zw/speciesdata/genus.php?genus_id=1474
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Mark Hyde
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Bart Wursten
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Petra Ballings
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Flora of Zimbabwe

Aster (genus)

provided by wikipedia EN

Aster is a genus of perennial flowering plants in the family Asteraceae. Its circumscription has been narrowed, and it now encompasses around 170 species, all but one of which are restricted to Eurasia; many species formerly in Aster are now in other genera of the tribe Astereae. Aster amellus is the type species of the genus and the family Asteraceae.[1]

The name Aster comes from the Ancient Greek word ἀστήρ (astḗr), meaning "star", referring to the shape of the flower head. Many species and a variety of hybrids and varieties are popular as garden plants because of their attractive and colourful flowers. 'Aster' species are used as food plants by the larvae of a number of Lepidoptera species—see list of Lepidoptera that feed on Aster. Asters can grow in all hardiness zones.

Circumscription

Multi layer petals Aster flower

The genus Aster once contained nearly 600 species in Eurasia and North America, but after morphologic and molecular research on the genus during the 1990s, it was decided that the North American species are better treated in a series of other related genera. After this split there are roughly 180 species within the genus, all but one being confined to Eurasia.[3]

The New World species have now been reclassified in the genera Almutaster, Canadanthus, Doellingeria, Eucephalus, Eurybia, Ionactis, Oligoneuron, Oreostemma, Sericocarpus and Symphyotrichum, though all are treated within the same tribe, Astereae. The "China aster" is in the related genus Callistephus. Regardless of the taxonomic change, most are still widely referred to as "asters", or "Michaelmas daisies", because of their typical blooming period.

Species

Aster alpinus is the only species of Aster (sensu stricto) that is native to North America; it is found in mountains across the Northern Hemisphere.

Plants of the World Online accepts 10 species, as of June 2022.[2] The species formerly known as Aster tripolium (sea aster) is now Tripolium pannonicum. The species formerly known as Aster linosyris (goldilocks) is now Galatella linosyris. Many species and a variety of hybrids and varieties are popular as garden plants because of their beautiful, attractive and colourful flowers. Aster species are used as food plants by the larvae of a number of Lepidoptera species—see list of Lepidoptera that feed on Aster. Asters can grow in all hardiness zones.

Some species are:

Hybrids and cultivars

Those marked agm have gained the Royal Horticultural Society's Award of Garden Merit.

  • Aster × frikartii (A. amellus × A. thomsonii) Frikart's aster[6]
    • Aster × frikartii 'Mönch' agm[7]
    • A. × frikartii 'Wunder von Stäfa' agm[8]
  • 'Kylie' (A. novae-angliae 'Andenken an Alma Pötschke' × A. ericoides 'White Heather')[9]
  • 'Ochtendgloren' agm[10] (A. pringlei hybrid)
  • 'Photograph' agm[11]

In history

The Hungarian revolution of 31 October 1918, became known as the "Aster Revolution" due to protesters in Budapest wearing this flower.[12]

In culture

One of the few flowers left around Michaelmas in the British Isles is the Michaelmas daisy (another name for asters), hence the rhyme: "The Michaelmas daisies, among dead weeds, Bloom for St Michael's valorous deeds..."[13]

References

  1. ^ a b Elizabeth Pennissi (2001). "Linnaeus's last stand?". Science. 291 (5512): 2304–2307. doi:10.1126/science.291.5512.2304. PMID 11269295. S2CID 83724152.
  2. ^ a b "Aster L." Plants of the World Online. Board of Trustees of the Royal Botanic Gardens, Kew. 2021. Retrieved 12 June 2022.
  3. ^ Luc Brouillet, Theodore M. Barkley & John L. Strother. "Asteraceae Martinov tribe Astereae Cassini, J. Phys. Chim. Hist. Nat. Arts. 88: 195. 1819". Flora of North America. p. 3. in Flora of North America.
  4. ^ "Aster hispidus". Wikispecies.
  5. ^ "Convergent Origin of the narrowly lanceolate leaf in the Genus Aster—with Special Reference to An Unexpected Discovery of A New Aster Species from East China". Novataxa. 2019-01-27. Retrieved 11 February 2019.
  6. ^ Floridata: Aster × frikartii
  7. ^ "RHS Plant Selector - Aster × frikartii 'Mönch'". Retrieved 15 July 2013.
  8. ^ "RHS Plant Selector - A. × frikartii 'Wunder von Stäfa'". Retrieved 15 July 2013.
  9. ^ Klein, Carol (2004-10-22). "Blazin' squad". Telegraph. Retrieved 15 July 2013.
  10. ^ "RHS Plant Selector - Aster 'Ochtendgloren'". Retrieved 15 July 2013.
  11. ^ "RHS Plant Selector - Aster 'Photograph'". Retrieved 15 July 2013.
  12. ^ Hajdu, Tibor (1990). "Revolution, Counterrevolution, Consolidation". In Peter F. Sugar (ed.). A History of Hungary ([New printing]. ed.). Bloomington: Indiana University Press. p. 297. ISBN 0253355788.
  13. ^ Rob Taylor (7 October 2010). "Michaelmas Traditions". Black Country Bugle. Archived from the original on 30 September 2015. Retrieved 29 September 2015.
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Wikipedia authors and editors
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wikipedia EN

Aster (genus): Brief Summary

provided by wikipedia EN

Aster is a genus of perennial flowering plants in the family Asteraceae. Its circumscription has been narrowed, and it now encompasses around 170 species, all but one of which are restricted to Eurasia; many species formerly in Aster are now in other genera of the tribe Astereae. Aster amellus is the type species of the genus and the family Asteraceae.

The name Aster comes from the Ancient Greek word ἀστήρ (astḗr), meaning "star", referring to the shape of the flower head. Many species and a variety of hybrids and varieties are popular as garden plants because of their attractive and colourful flowers. 'Aster' species are used as food plants by the larvae of a number of Lepidoptera species—see list of Lepidoptera that feed on Aster. Asters can grow in all hardiness zones.

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Wikipedia authors and editors
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visit source
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wikipedia EN