Need Help with some names

[SteenAZ]

This is my first time posting here so hello to fellow cactus fans. I am trying to identify and label a few assorted unknown cacti in my front yard display garden. Some of these were gifts or rescued plants from where I used work. I have a decent knowledge of many of genera but these have me stumped. I love to use both the scientific and common names. In the case of my Aloes I have even made up a common name when I couldn't find one.

[Kamos]

The first one is Myrtillocactus geometrizans I think.

[teo]

Second looks like Cleistocactus winteri

[greenknight]

Agreed with Kamos on the first one.

The second one looks like Cleistocactus winteri (syn. Hidewintera aureispina), which is a trailing cactus - but they do grow upright at first. How tall is that?

[edit] teo's post appeared while I was typing the above.

[Minime8484]

Second one is Weberbauerocereus johnsonii.
Fairly commonly available in HDs/Lowe's nowadays, sometimes in the same pot with Cleistocactus tupizensis or C. strausii.

[SteenAZ]

The first one is Myrtillocactus geometrizans I think.

Thanks! I am 98% sure you are right. I might need to move it. The current location is close to the driveway.

[SteenAZ]

Agreed with Kamos on the first one.

The second one looks like Cleistocactus winteri (syn. Hidewintera aureispina), which is a trailing cactus - but they do grow upright at first. How tall is that?

[edit] teo's post appeared while I was typing the above.

There are 4 of them and they are 10 to 15 inches tall. They show no sign of wanting to bend or arch. Weberbauerocereus johnsonii has also been suggested but I think my reservation on that one is they are rather slender, about 4 inches in diameter.

[CactusFanDan]

The last lot are Pilosocereus gounellei. They won't survive a frost and ideally need to be kept above 7-8 degrees C (46F or so).

[SteenAZ]

The last lot are Pilosocereus gounellei. They won't survive a frost and ideally need to be kept above 7-8 degrees C (46F or so).

Thanks! I agree with your finding. No worries about cold here in Phoenix. Our biggest issue is keeping some of the cacti from getting fried in the afternoon sun.