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Trichocereus grandiflorus / rowleyi (Echinopsis grandiflora)

Trichocereus grandiflorus / rowleyi (Echinopsis grandiflora)

Trichocereus grandiflorus is a cactus from the genus Trichocereus. Its status is highly questionable as a correct species and the opinions are as varied as the names it carried. Joel Lodé has listed Trichocereus grandiflorus as Trichocereus rowleyi right now, while Anderson listed it as a synonym of Echinopsis huascha in his Cactus Lexicon. Please note that some people also refer to this plant as Echinopsis grandiflora, but this name is also used by Echinopsis eyriesii v. grandiflora and the older name has priority.

Synonyms of Trichocereus grandiflorus:

Lobivia grandiflora, Lobivia grandiflorus, Helianthocereus grandiflora, Helianthocereus grandiflorus, Helianthocereus huascha, Trichocereus rowleyi, Echinopsis huascha

Trichocereus grandiflorus was moved around between the genera  a lot in the past. It is genetically close to both Lobivia and Soehrensia, which is why it was sometimes included there. Friedrich et al. listed it as Echinopsis grandiflora. Anderson then listed it as a synonym to Echinopsis calochlora in his CACTUS LEXICON. Joel Lodé lists it as Trichocereus rowleyi. Schlumpberger lists it as Soehrensia grandiflora (Schlumpberger).

T.grandiflorus Flower:

The flowers of Trichocereus grandiflorus are often red and/or show various variations of red flowers. There are many hybrids, which is why the flower color is relatively unrelaible. There also are versions of flowers that are white in color and between 15-25 Centimeters in size. The tube is usually very hairy, but there are countless hybrids with all kinds of flower colors available on the open market.

Origin of Trichocereus grandiflorus:

Argentina, especially around Catamarca. The original description refers to a plant from a private collection and it is suspected that Trichocereus grandiflorus is extremely close to Trichocereus huascha and might even be part of this species.

The original description as Lobivia grandiflora came from Britton & Rose. Because of that, the plant was labeled as a Lobivia in most classic cactus literature. In addition, the title “Grandiflorus”, which roughly means “Large Flower” makes a lot of sense because most Lobivias usually have smaller flowers. The large flower size for a Lobivia shows that it is not a very normal Lobivia either. The collector Fric, who labeled it Chamaecereus giganteus (same principle because most Chamaecereus are tiny Lobivia), originally introduced the plant into the market, but since it was so different from Chamaecereus, this did not last long. Backeberg wanted to put it in his own problematic Genus Helianthocereus due to the diurnal flowers, but this flawed system was not adapted. Eventually, the plant ended up in Trichocereus, where it was until the restructuring made by Friedrich et al.

Cultivation of Trichocereus rowleyi (ex GF):

Trichocereus grandiflorus is a very hardy plant that can grow a lot during just one growing season if watered accordingly. The plant is able to tolerate some light frost but I would not recommend trying it out to the limit. I keep them at around 10° Celsius during the wintertime in a bright and well-ventilated room. I do not water them during the wintertime and only start watering again in March.

Buy Trichocereus grandiflorus / Seeds or Plants:

This plant is available every now on then on marketplace sites like Ebay or Amazon. In addition, many growers use it to produce hybrids. The Californian nursery Sacred Succulents has some colored Grandiflora hybrids and they sell seed every now an then. You can also try to make a post at our Trichocereus group at https://facebook.com/groups/trichocereus   because there are some growers there who give some away every now and then.

Trichocereus grandiflorus also shows similarities to Trichocereus schickendantzii and some even consider them close relatives. It´s sometimes difficult to keep the two apart and growers or collectors mix them up all the time. The same applies to Trichocereus huascha, which differs from Trichocereus grandiflorus through its spination.

Due to the fact that there are so many misidentified Trichocereus grandiflorus, or plants that are identified as Trichocereus huascha but are actually GF, a large part of the photos that can be seen online show something else. This whole confusion is worst with small and juvenile plants. Trichocereus grandiflorus is MULTI-Ribbed and grows columnar. Its higher rib count and the strange pupping behavior in combination with shorter spines than T. huascha and its typical pupping style at the base make it possible to identify it reliably though. The pups almost look like little balls on the base of the plant while Trichocereus schickendanzii forms large clusters that can get up to 1-2 meters wide. The problem with Trichocereus grandiflorus is that the original description was written after a collection plant, which may or may not have already been a hybrid of Trichocereus huascha.

Before we get to the pics, let me first take the time to say thank you to Prier, who donated those amazing pics. Thanks Prier!


Trichocereus grandiflorus / Echinopsis grandiflora T.rowleyi

Trichocereus grandiflorus / Echinopsis grandiflora T.rowleyi 2

Trichocereus grandiflorus / Echinopsis grandiflora T.rowleyi 3

Trichocereus grandiflorus / Echinopsis grandiflora T.rowleyi 5

Trichocereus grandiflorus / Echinopsis grandiflora T.rowleyi 7

Trichocereus grandiflorus / Echinopsis grandiflora T.rowleyi 8

Trichocereus grandiflorus / Echinopsis grandiflora T.rowleyi 9

Trichocereus rowleyi hybrid Trichocereus grandiflorus grandiflora

Trichocereus rowleyi hybrid – Photo credit: Jarek Tuszyński

Trichocereus rowleyi hybrid Trichocereus grandiflorus grandiflora 2

Trichocereus rowleyi hybrid – Photo credit: Jarek Tuszyński

Trichocereus rowleyi hybrid Trichocereus grandiflorus grandiflora 5

Trichocereus rowleyi hybrid – Photo credit: Jarek Tuszyński

Trichocereus rowleyi hybrid Trichocereus grandiflorus grandiflora 11

A very typical Trichocereus grandiflorus Photo Credit: Dinkum


Trichocereus scopulicola x Trichocereus grandiflorus Zelly hybrid Jeremy Jones

Trichocereus scopulicola x Trichocereus grandiflorus Zelly hybrid Jeremy Jones

Trichocereus grandiflorus Rowleyi Echinopsis grandiflora

A typical Trichocereus grandiflorus, labeled as Trichocereus huascha (Randy)

Trichocereus grandiflorus Rowleyi Echinopsis grandiflora

Another typical T. grandiflorus, labeled as T. huascha. Roger Kidd geograph.org.uk ,_Ashington,_

Trichocereus grandiflorus Rowleyi Echinopsis grandiflora

Another typical T. grandiflorus, labeled as T. huascha. by Daderot -_Botanischer_Garten_Freiburg

In comparison to this, here are Trichocereus huascha and Trichocereus schickendantzii:

Trichocereus huascha Echinopsis huascha stickpen

Trichocereus huascha Echinopsis huascha stickpen

Trichocereus huascha v. rubriflorus Echinopsis huascha

Trichocereus schickendantzii Echinopsis schickendantzii Gus 2

Trichocereus schickendantzii Echinopsis schickendantzii Gus 2

Note the differences in regards to the flower. White versions of Trichocereus grandiflorus are almost always misidentified Trichocereus schickendantzii, Trichocereus shaferi, or true hybrids involving T. huascha or T. grandiflorus that resulted in a white flower.

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Trichocereus smrzianus / Echinopsis smrziana

Trichocereus smrzianus / Echinopsis smrziana

Backeberg described Trichocereus smrzianus / Echinopsis smrziana in his KAKTUS ABC, a book that did not get a very wide release. Besides the description is highly controversial because it basically re-describes various forms of Echinopsis schickendantzii / Trichocereus schickendantzii and Trichocereus walteri that are barely on the level of a regional form.

Synonyms: Trichocereus smrzianus, Soehrensia smrziana, Soehrensia smrzianus, Echinopsis smrzianus, Echinopsis smrziana, Trichocereus schickendantzii, Echinopsis schickendantzii, Trichocereus walteri, Echinopsis walteri, etc.

Origin of Trichocereus smrzianus:

Argentina, Salta

Description of Echinopsis smrziana:

This species grows alone or in groups of larger clusters. It has a large, round body and reaches a maximum diameter of 2 meters and can get up to 60-70 centimeters tall. The plant is extremely variable and can grow like a clustering cactus like Trichocereus schickendantzii or in a columnar way, very similar to Trichocereus spachianus. It has 10-15 ribs and only grows at one location, which was also described as the type locality. T.smrzianus is extremely rare, though it is sometimes available on the commercial and sometimes shows up in cactus collections. The fact that the plant has so many ribs, makes it distinguishable from plants like Trichocereus candicans or Trichocereus spachianus. Young plants can look almost identical though, which is why identification of this species should not be done on juvenile plants. The bigger the plants, the broader the ribs are, what gives it a very typical Soehrensia look and it looks much closer to Soehrensia than to Trichocereus.

Spines of T.smrzianus:

The very thin spines are usually yellow to white. Plants have 8-15 spines on one areole, but Trichocereus smrzianus is extremely variable, what makes it so hard to ID. If you encounter the plants in the field it should be fairly easy to identify because it only grows on one location in Chachipampa, Argentina. It has 1-4 middle spines that are up to 3 centimeters long.

Flowers of E.smrziana:

Trichocereus smrzianus has white flowers, almost identical to the ones on T. schickendantzii. Overall it is a form of the latter, which means it is very hard to distinguish it from it. The plant flowers from the upper part of the body, what you can see on the featured image very well. The flowers get between 10-20 centimeters long and look very similar to the ones on Trichocereus tarijensis.


Trichocereus smrzianus has a round, green fruit that is between 2-5 centimeters in diameter and tastes very nicely. The name is a really bad example of how a name should not be. Not sure how it sounds in your language but in mine it sounds like having a seizure while biting your tongue off.
The taxonomic status of this group of plants was very inconsistent and due to the fact that there is a relationship to the genus Soehrensia, taxonomists have moved them back and forth from Trichocereus to, Soehrensia and Echinopsis now. After the merger with Echinopsis, taxonomy went full circle and re-declared Soehrensia as an accepted genus and it seems like it might stay like that. However, the plant is definitely close to Trichocereus schickendantzii and it´s definitely possible that Trichocereus smrzianus is just a natural hybrid between Trichocereus schickendantzii and a different species like Trichocereus tarijensis, or a regional form of the Trichocereus schickendantzii group.

Trichocereus smrzianus, Echinopsis smrziana Emőke Dénes Schickendantzii Kew_Gardens_1Emőke Dénes Echinopsis_smrziana_-_Kew_Gardens

Trichocereus smrzianus, Echinopsis smrziana Schickendantzii Oslo Sukkulentforening Soehrensia_smrzianaOslo Sukkulentforening Soehrensia_smrziana

by Michael Wolf Trichocereus smrzianus Echinopsis smrziana Schickendantzii

by Michael Wolf Echinopsis smrziana

by Michael Wolf Trichocereus smrzianus Echinopsis smrziana Schickendantzii

Photos below: Trichocereus smrzianus by Leanne Kelly

Trichocereus smrzianus Echinopsis smrziana Leanne Kelly (4)

Leanne Kelly

Trichocereus smrzianus Echinopsis smrziana Leanne Kelly (4)

Leanne Kelly (4)

Trichocereus smrzianus Echinopsis smrziana Leanne Kelly (3)

Leanne Kelly (3)

Trichocereus smrzianus Echinopsis smrziana Leanne Kelly (3)

Leanne Kelly

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Trichocereus Manguinii aka Trichocereus WK

Trichocereus Manguinii aka Trichocereus WK

Trichocereus Manguinii366 aa

Hi Guys, another cactus from the ancient times. Trichocereus Manguinii Backeberg, which can also be found throughout Australia under the name Trichocereus WK. I have absolutely no idea what WK stands for but the name Trichocereus Manguinii goes back to Backeberg, who tried to describe it as a species. Sometimes, we come across plants in our Trichocereus Facebook group. Most of the plants we encountered were probably brought into circulation by Backeberg himself or Friedrich Ritter in the early days of worlwide cactus trade.

The plant looks like a mix between a Trichocereus Terscheckii and Trichocereus Schickendantzii. It is very similar to Trichocereus Schickendantzii but it grows more columnar, is thicker and has red flower bulbs instead of green ones on Trichocereus Schickendantzii. The color of the epidermis is usually very dark green.

Description: Upright growing columnar cactus that usually pups very strongly from the base. The plant tends to form a lot of shoots and can form small group of plants very fast. Trichocereus Manguinii reaches a size of up to 120 centimeters and a maximum diameter of up to 15 centimeters. It has 18-21 ribs. The body of Trichocereus Manguinii has a dark green body, that differentiates it from similar lookalikes. Trichocereus Shaferi is similar for example, but it isnt as green as this one and has a lot less ribs.
The areoles are somewhat sunken in and usually have a dominant white fluff covering them. It has 10-12 radial spines and up to 4 middle spines than can get up to 0,5 centimeters long.

Flowers: The flowers are usually white and reddish/brown sepals that are covered with scales. The flowers can get up to 15 centimeters long and are very massive, compared to Trichocereus Schickendantzii. Trichocereus Manguinii forms a lot of flowers that are coming from all over the plant, including from the areoles.

Origin: Probably Argentina. But there was great confusion surrounding this plant because it was mostly known as a collection plant. One very large plant was located in the collection of Mr. Rivierre but I have no idea what happened to it. This plant is really rare today and will probably not come labeled under the “correct” name. The name was not accepted, which is why I chose the quotation marks. Trichocereus Manguinii is now integrated into Trichocereus Schickendantzii, though this large monster of  a cactus is definitely different from what I know as Tr. Schickendantzii. But since the plant is extremely rare, it´s probably not really high on any modern Taxonomist´s “To-Do” list to re-classify it.

As there are many Trichos from around the time of Backeberg and Ritter growing in Australia, this plant can be found sometimes over there. I´ve seen two of them recently that were posted in our Trichocereus group and I really hope to get some more pics and/or seeds in the future. It´s an amazing plant that usually comes labeled “Trichocereus WK”. If someone has an idea what it might mean, please let me know.

Where to buy seeds or plants of Trichocereus Manguinii? Well, this plant is currently not available anywhere in the world. I am trying to get some seeds and if I should ever locate a source, I´ll let you know.

Trichocereus Schickendantzii (Echinopsis)

Trichocereus Schickendantzii (Echinopsis)

This species was originally described by Britton & Rose in their book THE CACTACEAE, which was published in 1920. The plants grow in large clusters, in which they are pupping abundantly from the base! They can get up to 40-50 Centimeters, though they usually stay around 30. They have a diameter of 5-8 centimeters and a very healthy, green colored epidermis.

Ribs: They usually have between 13-18 ribs that are between 0,5 and 1 cm high. The spines are yellow and between 1-2 cm long. It has 7-10 radial spines and 2-7 middle spines.

Flower: The flowers are white and can get between 20-25 centimeters long with green tube and sepals and black heairs/white petals

Origin: Argentina, Tucuman

Cultivation: Trichocereus Schickendantzii is a very popular grafting stock and a hardy cactus. They can take a lot of water during the hot season, but should not get wet “feet”. The average temperature should be around 10° celsius during the winter time. In summer, they can be grown in full sun but usually prefer a spot with partial shade. They should be hardy down to at least 0° celsius (and maybe even more) but I would not feel comfortable testing the boundaries. In a European country like Germany or France, they won´t survive the winter if kept outside. Some growers in the south of france reported that they tried to overwinter it with some rain protection but I am not sure if it worked. They should be totally dry during the winter and only be watered from April to Oktober.

Buy plants or seeds: There are a couple of growers who offer seed every now and then on our Trichocereus Group on Facebook. The plant is also sometimes in stock in the SAB Shop. Apart from that, you might also be lucky to get it from Seed suppliers like Köhres or Kakteen Haage but I have no idea how viable their seed is. In case of fresh seed, they are very easy to grow from seed. They prefer a mineralic soil type.

At a very young age, they look very much like Trichocereus Grandiflorus. However, they don´t get as big as Grandiflorus and have a different pupping behaviour. But generally speaking, they can be very similar and many pics labeled as Schickendantzii, including some on that page may or may not belong to Trichocereus Grandiflorus. The pic that is underlined with cs California shows a very typical Schickendantzii, which is substantially smaller than the ones on the other pics. But since there also are hybrids, it´s pretty tough to keep them seperate from the more columnar growing Grandifloras.

Thank you very much to everyone who donated the Pictures! I greatly appreciate it!

Trichocereus Schickendantzii flowers 1 Trichocereus Schickendantzii flowers 2 Trichocereus Schickendantzii flowers Trichocereus Schickendantzii Gus 2 Trichocereus Schickendantzii Gusby Gus Freeman!

400px-Cactus_002by Henryk Kotowski Kotoviski

by Bachelot Pierre J-P


450px-Echinopsis_schickendantzii_(1)“Echinopsis schickendantzii (1)” by Karen and Brad Emerson



Echinopsis_schickendantzii_(3)by Emily fromt Oakland

800px-Echinopsis_schickendantziiby Benoit Huron

800px-Echinopsis_schickendantzii_(4)Echinopsis schickendantzii by D. Patrick Lewis from Scottsdale, AZ, USA

800px-Flickr_-_brewbooks_-_Cacti_at_Paloma_Gardens Cacti at Paloma Gardens” by brewbooks from near Seattle, USA – Cacti at Paloma Gardens.

800px-Saguaro_flower  by Cs california

800px-Trinchocereus_Volcanensis“Trinchocereus Volcanensis” by Claudio Elias


Enjoying_the_outdoors_(5098916974)                        by Vivian Evans from Coonabarabran, NSW, Australia

Soehrensia_(Echinopsis)_schickendantzii“Soehrensia (Echinopsis) schickendantzii” by Sids1

Trichocereus_schickendantzii_-_Blütenknospe_(6977528060)“Trichocereus schickendantzii – Blütenknospe by Dornenwolf from Deutschland

White_beauties_(5098917280)“White beauties (5098917280)” by Vivian Evans from Coonabarabran, NSW, Australia – White beauties. Licensed under CC BY-SA 2.0 via Wikimedia Commons – http://commons.wikimedia.org/wiki/File:White_beauties_(5098917280).jpg#mediaviewer/File:White_beauties_(5098917280).jpg