Pediocactus peeblesianus

(Croizat) L. D. Benson

Cact. Succ. J. (Los Angeles) 34: 58. 1962.

Common names: Peebles Navajo cactus Navajo pincushion cactus
IllustratedEndemicConservation concern
Basionym: Navajoa peeblesiana Croizat Cact. Succ. J. (Los Angeles) 15: 89, fig. 42. 1943
Synonyms: Utahia peeblesianas (Croizat) Kladiwa
Treatment appears in FNA Volume 4. Treatment on page 213. Mentioned on page 164, 208, 212, 216.

Plants branched or unbranched. Stems gray-green, obovoid, globose or depressed-globose, 2–6.5 × 1.5–5.5 cm; areoles circular, lanulose. Spines soft and corky or spongy, harder at tips, white to pale gray, all radial or with 1 central and sometimes 0–1 intermediate spines per areole; radial spines 3–7 per areole, 2–9 × 0.5–1 mm; intermediate spines curved upward, 8–21 × 0.7–1.5 mm; central spine, when present, 5–18 × 1 mm. Flowers 1–1.4 × 1.5–2.5 cm; scales and outer tepals minutely toothed or denticulate or entire and undulate; outer tepals with brown-purple midstripes, oblanceolate, 5–13 × 2–4.5 mm; inner tepals cream, yellow, or yellowish green, lanceolate, 6–12(–15) mm. Fruits green, drying reddish brown, turbinate, 6–11 × 5–8 mm. Seeds dark brown to black, 3 × 2 mm, papillate and rugose.

Discussion

Subspecies 2 (2 in the flora).

Selected References

None.

Key

1 Central spines 0; radial spines (3-)4(-5) per areole; stems unbranched Pediocactus peeblesianus subsp. peeblesi
1 Central spines (0-)1; radial spines 6-7 per areole; stems 0-4-branched Pediocactus peeblesianus subsp. fickeise
... more about "Pediocactus peeblesianus"
Kenneth D. Heil +  and J. Mark Porter +
(Croizat) L. D. Benson +
Navajoa peeblesiana +
Peebles Navajo cactus +  and Navajo pincushion cactus +
Cact. Succ. J. (Los Angeles) +
Illustrated +, Endemic +  and Conservation concern +
Utahia peeblesianas +
Pediocactus peeblesianus +
Pediocactus +
species +