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Acmispon tomentosus

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Species of plant

Acmispon tomentosus
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Faboideae
Genus: Acmispon
Species: A. tomentosus
Binomial name
Acmispon tomentosus
(Hook. & Arn.) Govaerts
Varieties

See text.

Synonyms
  • Hosackia tomentosa Hook. & Arn.
  • Lotus eriophorus Greene
  • Lotus heermannii var. eriophorus (Greene) Ottley
  • Lotus tomentosus (Hook. & Arn.) Greene, nom. illeg.
  • Syrmatium eriophorum (Greene) A.Heller
  • Syrmatium tomentosum (Hook. & Arn.) Vogel

Acmispon tomentosus is a perennial plant in the family Fabaceae in the genus Acmispon. It is native to California and northwestern Mexico. The variety A. tomentosus var. glabriusculus has the synonym Acmispon heermannii.

Description

The species is identified by small oval hairy succulent leaves. the flower buds are burgundy red and the flowers are yellow, looking much like a small version of a Lotus pedunculatus flower head.

Sometimes this species occurs as an annual plant if it is growing in certain conditions.

Taxonomy

The species was first described by William Jackson Hooker and George A. Walker Arnott in 1832 as Hosackia tomentosa. It was moved to the genus Acmispon in 2018.

Varieties

As of October 2024, Plants of the World Online accepted two varieties:

  • Acmispon tomentosus var. glabriusculus (Hook. & Arn.) Govaerts
  • Acmispon tomentosus var. tomentosus

A. tomentosus var. glabriusculus has the synonym Acmispon heermannii, and has been known by the common name Heermann's bird's-foot trefoil. As of October 2024, Plants of the World Online and the Jepson eFlora accept this variety rather than the species A. heermannii.

A. tomentosus var. tomentosus is generally identified by having less red in its buds and more hairy leaves.

References

  1. ^ "Acmispon tomentosus (Hook. & Arn.) Govaerts". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2024-10-24.
  2. ^ "Acmispon tomentosus Calflora". www.calflora.org. Retrieved 2024-08-08.
  3. "Acmispon tomentosus". ucjeps.berkeley.edu. Retrieved 2024-08-08.
  4. "Acmispon tomentosus (Hook. & Arn.) Govaerts". The International Plant Names Index. Retrieved 2024-10-24.
  5. NRCS. "Lotus heermannii (Durand & Hilg.) Greene". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 2024-10-24.
  6. "Acmispon tomentosus var. glabriusculus". Jepson eFlora. The Jepson Herbarium. Retrieved 2024-10-24.
  7. "Acmispon tomentosus var. tomentosus". Calflora. Retrieved 2024-08-08.
Taxon identifiers
Acmispon tomentosus
Hosackia tomentosa


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