---
title: "Selenicereus undatus or dogtail? Or…something else? 😅"
description: "Selenicereus undatus or dogtail? Or…something else? 😅"
url: "https://getplanta.com/community/2OB1JXZXRQeo4spB0EojrA/kZ3eKT31xG1iw2ZJjMxqJ9"
community: "Plant Identification"
author: "Alex Hanner"
published: "2024-12-05T20:03:53.987903Z"
language: "en"
image: "https://images.getplanta.com/v1/resize/LXHG1ykWQuFUAS0FkwxmAou4fSv1ozbzjti3m_321Lw/3whuB-n5RQqORUIuSl5Rtg.webp?size=large"
---

[Community](https://getplanta.com/community.md) / [Plant Identification](https://getplanta.com/community/2OB1JXZXRQeo4spB0EojrA.md)

# Selenicereus undatus or dogtail? Or…something else? 😅

_Posted by Alex Hanner on 2024-12-05_

Selenicereus undatus or dogtail? Or…something else? 😅

![Attachment 1 of 1](https://images.getplanta.com/v1/resize/LXHG1ykWQuFUAS0FkwxmAou4fSv1ozbzjti3m_321Lw/3whuB-n5RQqORUIuSl5Rtg.webp?size=large)

## 3 comments

### Kades commented on 2024-12-05

I’m gonna go with undatus!

#### Kades replied on 2024-12-05

“The two are most easily distinguishable by the “scalloped” stems vs straight stems on the dragon fruit and dog tail, respectively.

Even on juvenile dragon fruit plants, the stems develop a “segmented” or “scalloped” appearance, remaining intact but tapering to a much thinner diameter before returning to its original size- repeating this pattern as it continues to grow in length.

In contrast, the diameter of Dog tail stems remain uniform, increasing in size proportional to its growth as a whole.”

Taken from Reddit

#### Alex Hanner replied on 2024-12-05

Thank you so much!

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