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Tag: Echinopsis Schickendantzii

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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.

Fruit:

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 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

400px-Trichocereus_volcanensis,_cactus

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

450px-Echinopsis_schickendantzii_(2)

 

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

Cactus_flowers

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