Acamptopappus shockleyi

{{Short description|Species of flowering plant}}

{{Speciesbox

|image = Acamptopappus shockleyi 7.jpg

|status = G3

|status_system = TNC

|status_ref = {{Cite NatureServe|date=6 December 2024|id=2.152541|title=Acamptopappus shockleyi | NatureServe Explorer|access-date=22 December 2024}}

|genus = Acamptopappus

|species = shockleyi

|authority = A. Gray

|range_map=Acamptopappus shockleyi distribution map.svg

|range_map_caption=Range of Acamptoppaus shockleyiGBIF.org (23 February 2025) GBIF Occurrence Download https://doi.org/10.15468/dl.u8zv76

}}

Acamptopappus shockleyi, or Shockley's goldenhead, is a perennial subshrub in the family Asteraceae found in and near the eastern Mojave Desert in southern Nevada and southeastern California.Kartesz, J.T. 1988. A flora of Nevada. University of Nevada, RenoMojave Desert Wildflowers, Pam MacKay, 2nd Ed. 2013, p. 183[http://bonap.net/MapGallery/County/Acamptopappus%20shockleyi.png Biota of North America Program 2014 county distribution map]

Description

Acamptopappus shockleyi is a perennial subshrub. Flower heads are borne singly, with both ray flowers and disk flowers, compared to Acamptopappus sphaerocephalus which also grows in the Mojave Desert but has only disc flowers on heads in corymbose arrays.[http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=100070 Flora of North America Vol. 20 Page 5, 184 Goldenhead Acamptopappus (A. Gray) A. Gray, Proc. Amer. Acad. Arts. 8: 634. 1873.]Lane, M. A. 1988. Generic relationships and taxonomy of Acamptopappus (Compositae: Astereae). Madroño 35: 247–265.

Acamptopappus shockleyi grows from {{convert|3000|to|6200|ft|m}} in flats and washes of the eastern Mojave Desert, White Mountains, Inyo Mountains, and areas of southern Nevada.

Conservation

{{As of|2024|December}}, the conservation group NatureServe listed Acamptopappus shockleyi as Vulnerable (G3) worldwide. This status was last reviewed on 21 January 1998. At the state level, this species is listed as No Status Rank (not assessed) in California, and Apparently Secure (S4) in Nevada.

Taxonomy

= Etymology =

The species is named after William Hillman Shockley.{{cite web |author= |date= |title=Shockley, William Hillman (1855-1925) |url=https://plants.jstor.org/stable/10.5555/al.ap.person.bm000334083 |website=JSTOR |location=Global Plants |publisher= |access-date=24 February 2025}}

References

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