Trichocereus Thelegonus H.Friedrich & GD Rowley
New name: Echinopsis thelegona
Origin: Argentina, Tucumán, Salta, 5500-1100 meters altitude
Synonyms: Trichocereus Thelegona, Trichocereus Thelegonus, Echinopsis thelegonus, Echinopsis thelegona, Cereus thelegona, Cereus thelegonus
Branchy, creeping cactus that only builds a handful of shoots. It can reach a maximal height of 2,2 meters and can get up to 10 centimeters in diameter on very old plants. The plant has 13-15 ribs and is characterized by it´s very dominant areoles, that sit in top of some extremely angular bumps. It´s look is very typical and once you got used to the plant, it´s very hard to overlook or mis-identify it.
Trichocerus Thelegonus has rounded areoles and yellow to dark brown spines. Old growth tends to change its color to a more blackish tone, similar to how Trichocereus Cuzcoensis´spine color changes to a blackish gray on old spine growth. It usually has one and in some very rare cases, two middle spines. There are between 5-8 radial spines that can reach up to 2,5 centimeters in lenght.
FLOWER: Trichocereus Thelegonus is a nightflowering species that flowers very similar to other Trichocereus species. The flower is white and gets up to 22 centimeters long and I measured a staggering 17 centimeters in diameter. Besides, the flower is very beautiful and smells really good!
Fruits: The fruits of Trichocereus Thelegonus are round and have reddish brown hairs. The fruits are reddish and can reach 6 centimeters in diameter.
Trichocereus Thelegonus or Echinopsis Thelegonais self-sterile and it needs pollen from other plants to produce seed.
bernard loison Echinopsis_thelegona
Pics: Noah Reams
Trichocereus Thelegonus
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