Roseii is an old name for what is now considered Peruvianus. Trichocereus Peruvianus, the Peruvian Torch Cactus or San Pedro Macho, is a fast-growing columnar cactus native to the western slope of the Andes in Peru, between about 2,000–3,000 m (6,600–9,800 ft) above sea level. Trichocereus Peruvianus has a long history of being used in Andean traditional medicine. Archeological studies have found evidence of use going back two thousand years, to Moche culture. Currently it is believed to help with nervous conditions, joint problems, drug addictions, cardiac disease, and high blood pressure. Trichocereus Peruvianus contains hordenine and "it has been shown that hordenine, N,N-Dimethyl-hydroxyphenylethylamine, exhibits an inhibitory action against at least 18 strains of penicillin resistant Staphylococcus bacteria.
The plant is bluish-green in colour, with frosted stems, and 6-9 broadly rounded ribs; it has large, white flowers. It can grow up to 3-6 meters tall, with stems up to 8-18 cm in diameter; it is fully erect to begin with, but later possibly arching over, or even becoming prostrate. Groups of 6-8 either red or honey-coloured to brown rigid spines, up to 4 cm in length, with most about 1 cm, are located at the nodes, which are evenly spaced along the ribs, up to approximately 2.5 cm apart.
There are 2 different forms of Roseii with the 1st form being a shorter and less spined, fatter plant. Whilst this Roseii form 2 has much longer and more spination and is quite distinct. Both forms seem to be very similar to the plants around Matucana pictured on Keeper Trouts website. It is a beautiful glaucus blue with attractive red spines. The spines can go yellow depending on shade or more lack there of. I've had my cut for about 9 months and is now starting to kick off with some new growth. This is a damn sexy cactus, that I have to get a bigger cut of next time. The 1st 2 pics below are of the mother clump of my cutting, at Fields Cactus Farm. The next 3 are of different clones of the same plant in different spots around the garden out there. The last few of my little cutting now rooted in a pot and starting to grow. This is a super hottie, love these plants. :)
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