D I S C O V E R    L I F E   
Bee Hunt! Odonata Lepidoptera 
  HomeAll Living ThingsIDnature guidesGlobal mapperAlbumsLabelsSearch
  AboutNewsEventsResearchEducationProjectsStudy sitesHelp


Sclerocactus wrightiae L. D. Benson
WRIGHTS FISHHOOK CACTUS
Life   Plantae   Dicotyledoneae   Cactaceae   Sclerocactus


Click on map for details about points.

IDnature guide

Links
  • Associates
  • Missouri Botanical Garden

  • We parsed the following live from the Web into this page. Such content is managed by its original site and not cached on Discover Life. Please send feedback and corrections directly to the source. See original regarding copyrights and terms of use.
  • Flora of North America

Associates · map
FamilyScientific name @ source (records)
Apidae  Anthophora lesquerellae @ BBSL (1)

Diadasia lutzi @ BBSL (5)

Eucera phaceliae @ BBSL (1)
Halictidae  Agapostemon femoratus @ BBSL (2)

Agapostemon melliventris @ BBSL (1)

Agapostemon texanus @ BBSL (27)

Lasioglossum hyalinum @ BBSL (6); BBSL__CORNEL (1)

Lasioglossum pruinosiforme @ BBSL (14); BBSL__CORNEL (1)

go to Discover Life's Facebook group

Following modified from Flora of North America
   Top | See original

Link to Flora of North America home
 
All Floras       Advanced Search
FNA Vol. 4 Page 199, 200 , 201 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 4 | Cactaceae | Sclerocactus

2. Sclerocactus wrightiae L. D. Benson, Cact. Succ. J. (Los Angeles). 38: 55, figs. 5, 6. 1966.

Wright's cactus, Wright's fishhook cactus

Ferocactus wrightiae (L. D. Benson) N. P. Taylor; Pediocactus wrightiae (L. D. Benson) Arp

Stems usually unbranched, usually pale green, depressed-spheric, spheric or short cylindric, (1-)4-8(-11) × 4-8 cm; ribs 13-16, tubercles often evident on ribs. Spines slightly or not obscuring stem; radial spines 5-10(-14) per areole, pale to white, 6-17(-20) mm; central spines (3-)4 per areole, terete to angled; abaxial central spine 1 per areole, white to tan with tan to black tips, hooked, 10-30(-44) × 0.5-1 mm; lateral adaxial spines 2 per areole, white or brown to reddish brown or black, 10-21(-35) × 0.8-1.5 mm; adaxial central spine white, flat to angled, 6-27(-35) × 5-15 mm. Flowers fragrant, funnelform to campanulate, sometimes narrowly so, (2-)3-4 × 2-4 cm; outer tepals with reddish brown midstripes and white to cream or pinkish margins, oblanceolate, 13-23 × 3-7 mm; inner tepals white to cream or pink, oblanceolate, 25-30 × 5-7 mm; filaments magenta; anthers yellow. Fruits irregularly dehiscent, ovoid, barrel-shaped, 9-15 × 7-12 mm, scales few or absent; ovary papillate, appearing granular. Seeds black, 2 × 3.5 mm, testa with rounded papillae.

Flowering late Apr-May. Exposed, highly alkaline, often bare clay hills, desert grasslands or saltbush flats; of conservation concern; 1300-1800 m; Utah.

Sclerocactus wrightiae displays considerable morphologic variation, presumably due to introgression with S. parviflorus ; however, it can usually be recognized by its noticeably fragrant flowers with pink to white tepals, and magenta staminal filaments. Although S. wrightiae generally has smaller stems and flowers and shorter spines than S. parviflorus , there are many exceptions.

Sclerocactus wrightiae is known to occur only near the Fremont River and San Rafael Swell in Utah. Exploitation by cactus collectors is partly responsible for its scarcity.

Sclerocactus wrightiae is in the Center for Plant Conservation's National Collection of Endangered Plants.

Updated: 2024-07-16 03:42:11 gmt
Discover Life | Top
© Designed by The Polistes Corporation