Drummond's Aster
Symphyotrichum drummondii (Lindley) Nesom
Drummond's Aster: https://marylandbiodiversity.com/species/4419
Synonyms
Aster drummondii 
Tags
S1 (Highly state rare)

Source: Wikipedia

Symphyotrichum drummondii

Secure  (NatureServe)[1]
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Subtribe: Symphyotrichinae
Genus: Symphyotrichum
Subgenus: Symphyotrichum subg. Symphyotrichum
Section: Symphyotrichum sect. Symphyotrichum
Species:
S. drummondii
Binomial name
Symphyotrichum drummondii
Infraspecies[2]
  • S. drummondii var. drummondii
  • S. drummondii var. texanum (E.S.Burgess) G.L.Nesom
Symphyotrichum drummondii native distribution: Mexico — Coahuila; US — Alabama, Arkansas, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maryland, Michigan, Minnesota, Mississippi, Missouri, Nebraska, Ohio, Oklahoma, Pennsylvania, Tennessee, Texas, West Virginia, and Wisconsin.
Native distribution[2]
Synonyms

Synonyms of species[2]

  • Aster drummondii Lindl. ex Hook.
  • Aster sagittifolius var. drummondii (Lindl. ex Hook.) Shinners

Synonyms of varieties

 S. d. var. drummondii [3]
  • Aster drummondii var. rhodactis Benke
 S. d. var. texanum [4]
  • Aster coahuilensis S.F.Blake
  • Aster drummondii subsp. parviceps (Shinners) A.G.Jones
  • Aster drummondii subsp. texanus (E.S.Burgess) A.G.Jones
  • Aster drummondii var. parviceps (Shinners) A.G.Jones
  • Aster drummondii var. texanus (E.S.Burgess) A.G.Jones
  • Aster texanus E.S.Burgess
  • Aster texanus var. parviceps Shinners
  • Symphyotrichum drummondii var. parviceps (Shinners) G.L.Nesom
  • Symphyotrichum texanum (E.S.Burgess) Semple

Symphyotrichum drummondii (formerly Aster drummondii) is a species of flowering plant of the family Asteraceae native to the central and eastern United States. The common name Drummond's aster has been used for the species. There also is an accepted variety native to the south-central United States and northeast Mexico named S. drummondii var. texanum. This variety has the common name of Texas aster. The species is a perennial, herbaceous plant that may reach 120 centimeters (4 feet) in height.

Description

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Symphyotrichum drummondii is a perennial, herbaceous plant that may reach 120 centimeters (4 feet) in height.[5]

Roots, stems, and leaves

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Flowers

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Involucres and phyllaries

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Florets

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Fruit

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Taxonomy

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Symphyotrichum drummondii is classified in the subgenus Symphyotrichum, section Symphyotrichum, subsection Heterophylli, series Cordifolii.[6] The species' common name is "Drummond's aster".[5] In addition to the autonym of S. drummondii var. drummondii, there is an accepted variety native to the south-central United States and northeast Mexico named S. drummondii var. texanum.[2] This variety has the common name of "Texas aster".[7]

Placement within Symphyotrichum subg. Symphyotrichum
  • Symphyotrichum
    subg. Symphyotrichum
    sect. Conyzopsis[ref 2]: 271 
    sect. Occidentales[ref 2]: 271 
    sect. Turbinelli[ref 1]: 133 

    S. turbinellum

    sect. Symphyotrichum[ref 2]: 268 
    Cladogram references
    1. ^ a b c d e Semple, J.C.; Heard, S.B.; Brouillet, L. (2002). "Cultivated and Native Asters of Ontario (Compositae: Astereae)". University of Waterloo Biology Series. 41. Ontario: University of Waterloo: 1–134.
    2. ^ a b c d e Nesom, G.L. (September 1994). "Review of the Taxonomy of Aster sensu lato (Asteraceae: Astereae), Emphasizing the New World Species". Phytologia. 77 (3) (published 31 January 1995): 141–297. ISSN 0031-9430. Retrieved 23 August 2021 – via Biodiversity Heritage Library.


Chromosomes

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S. drummondii has a monoploid number (also called "base number") of eight chromosomes (x = 8). Diploid and tetraploid specimens of the autonym have been found with total chromosome counts of 16 and 32, respectively.[8] Tetraploids have been found of S. drummondii var. texanum.[7]

Distribution and habitat

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Symphyotrichum drummondii is native to the U.S. states of Alabama, Arkansas, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maryland, Michigan, Minnesota, Mississippi, Missouri, Nebraska, Ohio, Oklahoma, Pennsylvania, Tennessee, Texas, West Virginia, and Wisconsin, as well as to the state of Coahuila in northeast Mexico.[2][4]

Conservation

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As of October 2024, NatureServe listed S. drummondii as Secure (G5) globally; Secure (S5) in Kentucky; Apparently Secure (S4) in Iowa and Mississippi; Imperiled (S2) in Michigan and Ohio; and, Critically Imperiled (S1) in Maryland, Pennsylvania, and West Virginia. The species' global status was last reviewed on 2 May 1988.[1] S. drummondii var. texanum is listed as a Vulnerable Variety (T3), with Kansas and Mississippi as Vulnerable (S3), and Louisiana as Critically Imperiled (S1). This variety's global status was last reviewed by NatureServe on 10 April 2006.[9]

Citations

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  1. ^ a b NatureServe 2024a.
  2. ^ a b c d e f POWO 2024a.
  3. ^ POWO 2024b.
  4. ^ a b POWO 2024c.
  5. ^ a b Brouillet et al. 2006.
  6. ^ Semple, Heard & Brouillet 2002a, p. 133.
  7. ^ a b Brouillet et al. 2006b.
  8. ^ Brouillet et al. 2006a.
  9. ^ NatureServe 2024c.

References

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