Difference between revisions of "Pediocactus despainii"
Great Basin Naturalist 40: 83, fig. 5. 1980.
Common names: San Rafael cactus Despain footcactus Despain’s pincushion cactus
Synonyms: Pediocactella bradyi var. despainii (S. L. Welsh & Goodrich) DoweldPediocactus bradyi subsp. despainii (S. L. Welsh & Goodrich) HochstätterPediocactus bradyi var. despainii (S. L. Welsh & Goodrich) Hochstätter
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| − | --><span class="statement" id="st- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>typically unbranched. <b>Stems</b> subglobose to obovoid, 3.8–6 × 3–9.5 cm; areoles circular to oval, villous to glabrate. <b>Spines</b> smooth, relatively hard, all radial, 9–15 per areole, spreading, white, 2–6 mm. <b>Flowers</b> 1.5–2.5 × 1.8–2.5 cm; scales and outer tepals minutely toothed to entire and undulate; outer tepals yellow-bronze to peach-bronze or pink with purple midstripes, 4–10 × 3–6 mm; inner tepals yellow-bronze to peach-bronze (rarely pink), 6–12 × 4–6 mm. <b>Fruits</b> green, drying reddish brown, turbinate, 9–11 × 10–12 mm. <b>Seeds</b> black, 3.5 × 2.5 mm, shiny, papillate and rugose.</span><!-- |
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| + | |phenology=Flowering spring. | ||
|habitat=Desert pavements of cobble or pebble in pinyon-juniper woodlands | |habitat=Desert pavements of cobble or pebble in pinyon-juniper woodlands | ||
|elevation=1500-1800 m | |elevation=1500-1800 m | ||
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|basionyms= | |basionyms= | ||
|family=Cactaceae | |family=Cactaceae | ||
| + | |phenology=Flowering spring. | ||
|habitat=Desert pavements of cobble or pebble in pinyon-juniper woodlands | |habitat=Desert pavements of cobble or pebble in pinyon-juniper woodlands | ||
|elevation=1500-1800 m | |elevation=1500-1800 m | ||
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|publication year=1980 | |publication year=1980 | ||
|special status= | |special status= | ||
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|subfamily=Cactaceae subfam. Cactoideae | |subfamily=Cactaceae subfam. Cactoideae | ||
|genus=Pediocactus | |genus=Pediocactus | ||
|species=Pediocactus despainii | |species=Pediocactus despainii | ||
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Revision as of 15:09, 27 July 2019
Plants typically unbranched. Stems subglobose to obovoid, 3.8–6 × 3–9.5 cm; areoles circular to oval, villous to glabrate. Spines smooth, relatively hard, all radial, 9–15 per areole, spreading, white, 2–6 mm. Flowers 1.5–2.5 × 1.8–2.5 cm; scales and outer tepals minutely toothed to entire and undulate; outer tepals yellow-bronze to peach-bronze or pink with purple midstripes, 4–10 × 3–6 mm; inner tepals yellow-bronze to peach-bronze (rarely pink), 6–12 × 4–6 mm. Fruits green, drying reddish brown, turbinate, 9–11 × 10–12 mm. Seeds black, 3.5 × 2.5 mm, shiny, papillate and rugose.
Phenology: Flowering spring.
Habitat: Desert pavements of cobble or pebble in pinyon-juniper woodlands
Elevation: 1500-1800 m
Discussion
Of conservation concern.
Population-level studies of chloroplast DNA (J. M. Porter et al. unpubl.) confirm a close relationship between Pediocactus despainii and P. winkleri. Genetic relationships among populations correspond to geographic features of the region: populations with the San Rafael Swell represent one group of related populations, and populations south of the San Rafael Swell represent another group of related populations. This pattern conflicts in some ways with morphology. While all of the populations south of the San Rafael Swell are classified as P. winkleri, within the Swell some populations are P. despainii, several are P. winkleri, and a few are morphologically intermediate.
Selected References
None.
Lower Taxa
None.