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Cactus ID Thread

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a1pha

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I was at the Desert Botanical Gardens the other day and surprisingly they only had 1 possible Trichocereus and it wasnt even on a labelled display. It was just in some pot off the side of the entrance. No one prolly bats an eye at this sexy ass Tricho. Im pretty sure my newb cacti ID'ing eyes see a Trichcereus Glaucus. What do you think ya'll?
 

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Some online present some bad IDs for T glacus, so here is the original species description translated into english, note the width and petal colors, and flattened spines in the description...
Trichocereus glaucus
First description was in:

Friedrich Ritter 1981
"Kakteen in Südamerika" Band 4: 1328, 1553

Page 1553
Fig. 444. Trichocereus glaucus.


RItter's 1981 description:

page 1328

Trichocereus glaucus Ritt. K.u.a.S., 1962, H. 11, S. 180


Body: shrubs from 1 to more than 2 meters tall and often several meters in diameter, appearance of columns is largely stepped on the lower situated branches but less stepped above [[Unclear: from "sprossend haupsächlich unten von liegenden Trieben, weniger oben sprossend"]]
Branches 5-8 cm thick, upright, later prostrate in the lower parts, new growth blue green, later more grey green.
Ribs 7-9, very broad & blunt, 7.5-13 mm high, 15-25 mm wide, notched, with furrow along breadth but not extending to the divided furrows of the rib.
Areoles are filled with grey felt [Knize’s have brown on new areoles], ½-¾ cm diameter, set 1-2 cm apart, with humps stretching downward into the notches. [Unclear: from "von den Höckern in die Kerben hinabreichend."]]
Spines in the new growth black to brown, then fading, straight [or erect or upright], stiff [or rigid],
Radial spines 7-10, on the side of arranged, the lower and lateral 8-15 mm long, robustly needle shaped, somewhat flattened, the upper are stronger and not as sharp as the Centralspines.
Centralspines 3-6, very widely spreading, awlshaped, 2-8 cm long, the lowest usually flattened, the strongest sometimes in the middle, but usually closer to the upper edge and almost in the position of a radial spine, 1.5 mm thick at base.
Blossoms borne close to the top of the column, 13-19 cm long, smell sweet, opening in evenings but remaining open in the morning (Notes are from 4 blossoms of different specimens of the Type.)
Ovary green, with green scales, narrowly triangular, 2-5 mm long sharp scales and large elevated scale bases, with strong black or brown black wooly hairs, the divider against the nectar chamber is 3-4 mm thick. This tube, 13-23 mm long, set 1-2 mm wide around the Style, is brownish, almost open, with nectar.
Floral tube is nearly funnelshaped, 40-65 mm long, above 2-3 cm wide [oben 2-3 cm weit], interior is pale greenish,
[[Unclear portion: Insertionen are absent on the uppermost 2-3 cm of the tubes up to a ring on the seam;
From "Insertionen fehlen auf den obersten 2-3 cm der Röhre bis auf einen Ring auf dem Saum"]]
Anthers pale brown, [[Unclear portion: “about from because of Kronblatter-height standing” from: "etwa bei halber Kronblatter-höhe stehend".]]
Style is pale green, above white or pale brownish, 10-11 cm long, with 14-18 mm on the 13-16 spreading pale yellow stigma lobes between the anthers or above them.
Petals 5-8 cm long, 1-2 cm wide, above trains tip or blunt with a Spitzchen, at which basis extends less than 1/3 the width, in 2/3 until ¾ height at that, the external petals are longer, narrower and more spatulate, above [[Unclear "zugespitzt"]]; internal petals are white or slightly pink, much shorter, of below from [[Unclear "zugespitzt"]], pink until almost bloodred, passing into the scales.
[[From: Kronblatter 5-8 cm lang, 1-2 cm breit, oben zugespitzt oder stumpf mit einem Spitzchen, an der Basis weniger als 1/3 breit, bei 2/3 bis ¾ Höhe am breitesten, die äusseren die längeren und schmaleren und mehr spatelförmig, oben zugespitzt; innere weiss oder gering rosa, die äussersten kürzer, von unten ab zugespitzt, rosa bis fast blutrot, in die Schuppen übergehend. ]]
Fruit grass green, ca 4 cm long, 3 cm thick, at both ending bluntly, half almost entirely covered like the ovary, flesh is white, mature fruit bursts above.
Seed ca 1.2 mm long, 1.0 mm wide, 0.6 mm thick, at the apical end [[Unclear: ventralwärts vorgewölbt]]; Testa black, somewhat shining, with dimples; hilium at the [[Unclear: abgestutzten]] basal end, oval, very large, blackish.
Type collected in the mountains at the lower course of the TAMBO-river, Depart. Arequipa.
Grows also in the region of IlO.
Related to Trichocereus chalaensis.
Ritter discovered in 1954. Designated the collection as FR 270. Fig. 1194.
Note the fairly large number of central spines as many as 6!, some of the petals are pink to red and the flowers are not as large as in peruvianoid types... the width of the branches is 5-8cm, that is 2-3 inches wide max, where peruvianoid types can be 4-6 inches or a bit wider. It is not a thick branched plant.

You will note that many of the plants represented as T glaucus online are clearly not.
 
I have a seedling that looks like this one.. redish spines medium big areoles with 7 to 8 spines. Ill has its a real deal peruvianus. Possibly matucana.
 
hello, looking for an ID on these two cacti.

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I realize this might be difficult without seeing them in person but I've been growing these cacti for about 2-3 years and they are about 22" tall now. The spines range up to 5 cm in length and each areola appears to have 3-4 spines of varying lengths. The spines near the top are yellow with black tips and all of the areolas have a "V" type notch above them. There are 5 ribs on one and 6 on the other. With all of the inactive cactus being sold these days and the fact that these were sold to me as SAN PEDRO(Echinopsis pachanoi) cacti, I have to wonder what they really are. I've done a lot of searching online and I have a few idea's, one of them being that these are not SAN PEDRO at all. I personally think they have more Bridgesii traits but I am a beginner with the Cacti so my knowledge is limited. I'm hoping some of our Cacti experts can give me their opinion or at least help me get a little closer to the truth on this matter. If there is anything else that would help identify them I'd be happy to produce the information. Thanks in advance for any input that you may have on the subject! The nexus never lets me down! It would mean a lot to me to finally be able to understand exactly what it is that i'm working with here.

*side note - I've taken on the cubies as well and they are doing spectacular! I can't wait to share that experience as well! Stay tuned for pics!

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and one for my fellow goons! haha

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No need to help identifying the last photo. Haha!

Take it easy folks! Thanks again!
 
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