Echinocereus ledingii

Peebles

Cact. Succ. J. (Los Angeles) 8: 35, figs. 1936.

Common names: Leding’s hedgehog cactus
Synonyms: Echinocereus fendleri var. ledingii (Peebles) N. P. Taylor
Treatment appears in FNA Volume 4. Treatment on page 167. Mentioned on page 161, 168.

Plants 4–15-branched, forming rather open clumps. Stems erect, cylindric, 15–50 × 6–8 cm; ribs 12–14 (–16), crests slightly undulate; areoles 15–25 mm apart. Spines 10–16 per areole, mostly straight or central spines strongly curving down near base; radial spines 9–11 per areole, pale to golden yellow, aging darker colored or black, 12–15 mm; central spines 1 (–5) per areole, all yellow or whitish, terete, 20–25 mm. Flowers 5–6 × 5–6 cm; flower tube 15–20 × 15–25 mm; flower tube hairs 2 mm; inner tepals magenta to rose-pink, darker proximally, 30 × 5–12 mm, tips relatively thin and delicate; anthers yellow; nectar chamber 5–8 mm. Fruits green, sometimes tinged reddish to brownish, 20–30 mm, pulp white. 2n = 22.


Phenology: Flowering May–Jun; fruiting 3 1/2 months after flowering.
Habitat: Rocky mountainsides, interior chaparral, oak woodland, igneous substrates
Elevation: 1200-2000 m

Discussion

More than half of the localities formerly attributed to Echinocereus ledingii (H. Bravo-H. and H. Sánchez-M. 1998–1991, vol. 3; L. D. Benson 1969) are undocumented and highly suspect. The decurved or deflexed central spines, supposedly diagnostic for this rare species, are misleadingly duplicated in many individuals of E. coccineus and E. arizonicus, and only the latter two species have been found in most of the mountain ranges mapped by A. A. Nichol for L. D. Benson. Echinocereus ledingii is found in the Graham (Pinaleño), Santa Theresa, and Chiricahua mountains.

Selected References

None.

Lower Taxa

None.

"thin" is not a number.

... more about "Echinocereus ledingii"
cushionlike +
circular to linear +
deciduous +  and persistent +
hourglass--shaped +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Allan D. Zimmerman +  and Bruce D. Parfitt +
Peebles +
hardened +
triangular +
whitish +  and yellow +
curving +  and straight +
2 cm20 mm <br />0.02 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
proliferating +
flattened +  and cylindric +
Leding’s hedgehog cactus +
mucilaginous +
undulate +
1200-2000 m +
not separating +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
5 cm50 mm <br />0.05 m <br /> (6 cm60 mm <br />0.06 m <br />) +
unisexual +  and bisexual +
2.6 cm26 mm <br />0.026 m <br /> (5 cm50 mm <br />0.05 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (2.6 cm26 mm <br />0.026 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
tinged reddish;brownish +
dehiscent +  and indehiscent +
persistent +, long +  and deciduous +
spheric +  and narrowly obovoid +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Rocky mountainsides, interior chaparral, oak woodland, igneous substrates +
30 cm300 mm <br />0.3 m <br /> (?) +
deciduous +  and persistent +
rudimentary +
flat +  and terete +
nearly +  and microscopic +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
tuberculate +
fluted;spheric;depressed-spheric or club-shaped +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
smooth +  and tuberculate +
deciduous +  and persistent +
Flowering May–Jun +  and fruiting 3 1/2 months after flowering. +
mucilaginous +
ridgelike +  and nipple--shaped +
Cact. Succ. J. (Los Angeles) +
triangular +
arillate +  and strophiolate +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
rugose +  and tuberculate +
spheric;obovoid +
tuberculate +
0 cm0 mm <br />0 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
4 cm40 mm <br />0.04 m <br /> (5 cm50 mm <br />0.05 m <br />) +
black +, darker colored +, aging +, pale +  and golden yellow +
curved +  and straight +
deciduous +
3mm +  and 150mm +
9 (?) +  and 11 (?) +
roughened +  and smooth +
acicular +  and subulate +
1.2 cm12 mm <br />0.012 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
decurrent +
unsegmented +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
yellow-green +  and dark green +
15cm;50cm +
cylindric +
0 cm0 mm <br />0 m <br /> (40 cm400 mm <br />0.4 m <br />) +
succulent +
6cm;8cm +
yellowish green +  and green +
tuberculate +
Echinocereus fendleri var. ledingii +
adventitious +
tuberlike +
epipetric +  and epiphytic +
Echinocereus ledingii +
Echinocereus +
species +
dull +  and glossy +
2 cm20 mm <br />0.02 m <br /> (?) +
epiphytic;epiphytic;epiphytic +
decumbent +, pendent +, sprawling +, ascending +  and erect +
barrel-shaped +  and spheric +