First description was in:

page 20
Trichocereus puquiensis Rauh & Backbg. n. sp.

Latin Diagnosis:


To 4 meters tall, many branched, glaucus;
Branches to 15 cm thick
8-10 Ribs, somewhat thickened around the areoles, lacking grooves;
Areoles around 1 cm in diameter, spines start chestnut colored, radial spines up to 10, 1-2 cm long, starting brown tinged with grey or black;
Usually two central spines, one is erect, up to 10 cm long, the other curves downward, to 5-8 cm long;
White flower;
Tube to 10 cm long, to 2.5 cm diameter, very dark hairs;
Exterior segments of the perigon with red-green below, green above, interior is white
Stigma lobes are greenish
Style is green
Anthers are yellow
Southern Peru (Puquio Valley, 3300 m)
Type K 119 (1956)

Differs from T. cuzcoensis by having more ribs, longer central spines, bases not swollen


[Latin translation]