It reminds me of Euphorbia abyssinica? Not sure, take it with a grain of salt.

Hi All,

Here's a little surprise for Monday morning: a little new e-zine from the Southern Hemisphere called "Carpophyma".

https://www.dropbox.com/s/udohex6hszkmm ... 0.pdf?dl=0

It is not Kalanchoe fedtschenkoi as the label suggests.

Consolea, but not rubescens. C. rubescens has red-orange flowers. Possibly C. spinosissima.

Hi All, Many thanks for your replies. I checked - before going to Hawaii and also afterwards - the plants listed as introduced to Oahu island. I have now three different options - Stenocereus thurberi, Pachycereus, Pilosocereus. None of them is on the list, not that this list is perfect but this is ...

Hi All, I need some help in the identification of the cactus in the foreground. I think it could be a Pachycereus. The plant in the background is Euphorbia ingens. Couldn't get closer to the plants, I was 100 -120 meters away. The picture was taken in the Koko Crater (Hawaii). Many thanks, Eduart DS...

First - looks like a Cremnosedum indeed. I had a plant Cremnosedum 'Crocodile' few years back - very similar.

2 = Cylindropuntia subulata

Sedum nussbaumerianum

Colours mostly depend on cultivation factors - light, soil, watering... etc.

Haworthia limifolia var. ubomboensis

Sempervivum calcareum (or one of its hybrids).

No. 3 looks like an Anacampseros...

Aloe maculata

Always try IPNI

Eriospermum namaquanum Marloth ex P.L.Perry, J. S. African Bot. 50(4): 521 (1984) (1984).