Sclerocactus brevihamatus

Sclerocactus brevihamatus
Sclerocactus brevihamatus tobuschii

Apparently Secure  (NatureServe)
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Core eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Cacteae
Genus: Sclerocactus
Species: S. brevihamatus
Binomial name
Sclerocactus brevihamatus

Sclerocactus brevihamatus is a species of cactus known by the common name shorthook fishhook cactus.

It is endemic to Texas, and is an endangered species.[1] Threats to the species and subspecies include collecting and development in its habitat.[2]

Subspecies

Tobusch fishhook cactus flowers

Subspecies and varieties of this cactus include:

  • Sclerocactus brevihamatus subsp. brevihamatus – shorthook fishhook cactus.[3]
  • Sclerocactus brevihamatus var. pallidus – synonym of Sclerocactus brevihamatus,[4] also known as Ancistrocactus brevihamatus var. pallidus.[5]
  • Sclerocactus brevihamatus ssp. tobuschii – Tobusch fishhook cactus.[5] It is also known as a separate species, Ancistrocactus tobuschii.
The rare Tobusch fishhook cactus is a federally listed endangered species also. It is known from about 200[6] to about 500[2] individual specimens on the eastern part of the Edwards Plateau. It occurs in the Juniperus ashei-Quercus fusiformis plant association on calcareous soils.[7]

References

  1. ↑ USFWS: Determination that Ancistrocactus tobuschii is an endangered species. — Federal Register. November 7, 1979.
  2. 1 2 Center for Plant Conservation
  3. ↑ USDA: Sclerocactus brevihamatus subsp. brevihamatus
  4. ↑ Encyclopedia of Cacti: 'Sclerocactus brevihamatus var. pallidus
  5. 1 2 "Sclerocactus brevihamatus subsp. brevihamatus". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA). Retrieved 23 January 2018.
  6. ↑ The Nature Conservancy
  7. ↑ Sutton, K., et al. (1997). Habitat of Ancistrocactus tobuschii (Tobusch fishhook cactus, Cactaceae) on the Edwards Plateau of Central Texas. Southwestern Naturalist 42:4 441.


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