Echinocereus ... but which one???

[lostbuthopeful]

On this board some of the following cacti have been identified as Echinocereus Triglochidiatus. To my untutored eyes, the first two are of one species and the next three are of a different species (maybe two species). Do you agree? All of these pictures were taken in the Santa Fe New Mexico foothills at about 7300 feet of elevation.

[greenknight]

E. triglochidiatus is highly variable. It's also easily confused with some other species, such as E. fendleri, E. coccineus. See - http://www.efloras.org/florataxon.aspx? ... =242415252" onclick="window.open(this.href);return false;

[vlani]

E.triglochidatus (first two plamts) and E.caccinneus.

Flowers look somewhat similar so some people combine these two species under one name. Regardless, these are no doubt two different plants.

[greenknight]

As one of those who has trouble telling them apart, I didn't want to go out on a limb - but I'm pretty sure vlani is right.