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Trichocereus huascha (Echinopsis huascha)
Trichocereus huascha is an Argentinian species that looks very similar to Trichocereus spachianus. But there are important differences. Friedrich & Rowley renamed it to Echinopsis huascha in 1974 but their actions weren´t really embraced with love.
I have some fresh seeds of this rare species. You can get them here:
Synonyms: Lobivia huascha, Helianthocereus huascha, Trichocereus huascha, Echinopsis huascha, Soehrensia huascha, Cereus huascha, Cereus huascha variety flaviflorus, Cereus huascha var. rubriflorus, Lobivia purpureominata, Trichocereus andalgalensis, Echinopsis andalgalensis, Lobivia andalgalensis and so on.
The list of names that Trichocereus huascha already had does not fit on one page, so I will only keep the most important ones. Many varieties of this species were actually labeled Lobivia, Cereus or even Chamaecereus and it´s very difficult to differentiate the plant from similar plants like Trichocereus schickendantzii, Trichocereus spachianus or Trichocereus grandiflorus.
It usually grows in small, clumping groups that reach up to 1,1 meters in height. It usually pups abundantly and can grow upwards like a columnar cactus or creeping. The pups can get up to 5-6 centimeters in diameter and usually has more than 15 ribs as a mature plant. The areoles are between 1 cm and 1,5 centimeters apart from each other. There are yellow colored and needle-like spines on each areole. Trichocereus Huascha has 10-12 radial spines that are up to 2 centimeters long. The flower color is absolutely variable; also because there are SO many natural and commercial hybrids. This plant is used extensively in Trichocereus hybrid culture and many hybrids that are floating around on the market cant fully be id´d because the F1 offspring can sometimes differ greatly from the parental generation. The plant flowers from the apex, through the areoles and the flower color can be yellow, red or orange. You can keep it apart from plants like Trichocereus Schickendantzii by the color of the flower (Schickendantzii has white flowers) and the lesser thickness. The flowers are 6-8 centimeters in diameter and the species is DAYFLOWERING! They also are self-sterile, what means that you need two plants to get seed! There are constant arguments about it´s relativity to Trichocereus Andalgalensis and at the moment, I consider them synonymous. Most plants I´ve seen so far were almost indistinguishable from Trichocereus Huascha.
Origin: Argentina. Very widely distributed and can be found almost everywhere around Catamarca & La Rioja. The plant grows at 900-2000 meters altitude.
By izzyplante from Montreal, Canada
By Cliff from Arlington, Virginia, USA Echinopsis huascha
By Lord Koxinga
by stickpen-Trichocereus huascha amarilla
by stickpen Trichocereus huascha
by Peter A. Mansfeld Trichocereus huascha var. pecheretianus
by Daderot Trichocereus huascha – Botanischer Garten Freiburg
by frank vincentz Jardin Echinopsis_huascha
Soehrensia_huascha by Allie Caulfield
by Raffi Kojan Gardenology.org
Echinopsis Trichocereus Huascha by Roger Kidd (geograph.org.uk). Please note that the plant on this photo belongs into the wider context of Trichocereus huascha, but it´s not typical for the classic species that we know.
Dru Bloomfield Echinopsis_huascha
By Jofre Vlastní fotobanka Echinopsis huascha var. rubriflora
Trichocereus huascha / Echinopsis huascha in a private garden ( Photo: De Wet Swart)