# Mystery Plant identification

**URL:** <https://boards.straightdope.com/t/mystery-plant-identification/624759>\
**Category:** Factual Questions\
**Created:** [June 10, 2012, 10:30pm UTC](https://boards.straightdope.com/t/mystery-plant-identification/624759 "2012-06-10T22:30:45Z")\
**Posts on this page:** 15\
**Page:** 1

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**Author:** ![Raygun99](https://avatars.discourse-cdn.com/v4/letter/r/6f9a4e/32.png) [@Raygun99](https://boards.straightdope.com/u/Raygun99)\
**Post date:** [June 10, 2012, 10:30pm UTC](https://boards.straightdope.com/t/mystery-plant-identification/624759/1 "2012-06-10T22:30:45Z")

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One of my neighbours lent me her backyard plot for gardening this year, and letting it overgrow with… whatever last year. While I can identify most of the volunteer plants that are growing there, [this one](http://www.flickr.com/photos/reagens/7359423794/) is stumping me. I’m fairly certain it’s something in the squash/cucumber family, but I don’t quite know what it is. It’s paler green than all the other things like it that I’m growing, for one. If it’s going to produce something that I’ll want, I’ll leave most of them out there since it’s mostly out of the way of my rows. Any master gardeners out there know what it is?

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**Author:** ![Ionizer](https://avatars.discourse-cdn.com/v4/letter/i/5daacb/32.png) [@Ionizer](https://boards.straightdope.com/u/Ionizer)\
**Post date:** [June 10, 2012, 10:38pm UTC](https://boards.straightdope.com/t/mystery-plant-identification/624759/2 "2012-06-10T22:38:20Z")

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Rub a leaf and see if it smells ‘minty’. The leaves kind of have the look to them of various mints, but hard to tell from just this alone. Its a long-shot guess, of course.

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**Author:** ![Raygun99](https://avatars.discourse-cdn.com/v4/letter/r/6f9a4e/32.png) [@Raygun99](https://boards.straightdope.com/u/Raygun99)\
**Post date:** [June 10, 2012, 10:44pm UTC](https://boards.straightdope.com/t/mystery-plant-identification/624759/3 "2012-06-10T22:44:09Z")

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Nope, no mint odor. It has almost like a faint fishy smell to it. The leaves also feel thick and spongy, and are covered in small “hairs”.

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**Author:** ![WhyNot](https://avatars.discourse-cdn.com/v4/letter/w/c77e96/32.png) [@WhyNot](https://boards.straightdope.com/u/WhyNot)\
**Post date:** [June 10, 2012, 10:50pm UTC](https://boards.straightdope.com/t/mystery-plant-identification/624759/4 "2012-06-10T22:50:38Z")

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Where do you live?

What shape is the stem? Does it have any flowers? Do the leaves come off in opposing pairs, or do they make a spiral up the stem, or something else? Does it grow from a single stem out of the ground, or a rosette or a clump or does it start single and then branch off?

Is it really soft, like you want to pet it? So far, my guess is that it’s a baby [comfrey](http://www.comfreycentral.com/), but it’s just this side of a WAG until you can share more details.

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**Author:** ![Raygun99](https://avatars.discourse-cdn.com/v4/letter/r/6f9a4e/32.png) [@Raygun99](https://boards.straightdope.com/u/Raygun99)\
**Post date:** [June 10, 2012, 10:58pm UTC](https://boards.straightdope.com/t/mystery-plant-identification/624759/5 "2012-06-10T22:58:01Z")

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> [@WhyNot](#):
>
> Where do you live?

Calgary.

> [@](#):
>
> What shape is the stem?

Cylindrical and smooth.

> [@](#):
>
> Does it have any flowers?

None of the plants have them yet.

> [@](#):
>
> Do the leaves come off in opposing pairs, or do they make a spiral up the stem, or something else?

Opposing pairs.

> [@](#):
>
> Does it grow from a single stem out of the ground, or a rosette or a clump or does it start single and then branch off?

Single stem, although it hugs the ground quite closely.

> [@](#):
>
> Is it really soft, like you want to pet it? So far, my guess is that it’s a baby [comfrey](http://www.comfreycentral.com/), but it’s just this side of a WAG until you can share more details.

It’s fairly soft, yes.

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**Author:** ![cynyc](https://avatars.discourse-cdn.com/v4/letter/c/f05b48/32.png) [@cynyc](https://boards.straightdope.com/u/cynyc)\
**Post date:** [June 10, 2012, 11:30pm UTC](https://boards.straightdope.com/t/mystery-plant-identification/624759/6 "2012-06-10T23:30:14Z")

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Hm. No more, mature, plants to photograph?

Try a net search on fuzzy/indigenous/Calgary/herbs/weeds/plants.

The reason I’m going here is that there are edible, if not desirable, young plants that only pop up in a short proper season for harvestong. Like burdock here in the deep south of NYC. 😉

And then there are those plants that will kill you just by touching them.😃 It’s true.

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**Author:** ![David42](https://avatars.discourse-cdn.com/v4/letter/d/5f9b8f/32.png) [@David42](https://boards.straightdope.com/u/David42)\
**Post date:** [June 10, 2012, 11:39pm UTC](https://boards.straightdope.com/t/mystery-plant-identification/624759/7 "2012-06-10T23:39:49Z")

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This is a seedling.

A kajillion plants look similar as seedlings.

Give us a phot in two weeks maybe I’ll have a clue.

Go over the observations in post #5 again then as some might change–practically all dicots start out with opposing pairs but some wind up spiralling, for instance.

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**Author:** ![WhyNot](https://avatars.discourse-cdn.com/v4/letter/w/c77e96/32.png) [@WhyNot](https://boards.straightdope.com/u/WhyNot)\
**Post date:** [June 10, 2012, 11:47pm UTC](https://boards.straightdope.com/t/mystery-plant-identification/624759/8 "2012-06-10T23:47:49Z")

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Hmm, not comfrey then. Its leaves grow in clumps, not opposing pairs…

And not a mint, those have square stems…

It’s really, really hard to identify a plant before it flowers. Not least because the most common field guides begin the process with flower.

The good news is, [there are several plant ID courses at the Calgary Zoo](http://www.calgaryzoo.org/content/view/796/900/)! 😃

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**Author:** ![David42](https://avatars.discourse-cdn.com/v4/letter/d/5f9b8f/32.png) [@David42](https://boards.straightdope.com/u/David42)\
**Post date:** [June 10, 2012, 11:58pm UTC](https://boards.straightdope.com/t/mystery-plant-identification/624759/9 "2012-06-10T23:58:32Z")

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> [@WhyNot](#):
>
> Hmm, not comfrey then. Its leaves grow in clumps, not opposing pairs…
> 
> And not a mint, those have square stems…
> 
> It’s really, really hard to identify a plant before it flowers. Not least because the most common field guides begin the process with flower.
> 
> The good news is, [there are several plant ID courses at the Calgary Zoo](http://www.calgaryzoo.org/content/view/796/900/)! 😃

Comfrey seedlings begin with opposing pairs, as nearly all dicots do.

With a dicot, there a two seed halves which each produce a leaf, naturally opposing.

> **[Redirect Notice](http://www.google.com/imgres?imgurl=http:%2F%2Fwww.veggiegardeningtips.com%2Fwp-content%2Fuploads%2F2008%2F02%2Fglobe-artichoke-seedling.jpg&imgrefurl=http:%2F%2Fwww.veggiegardeningtips.com%2Fgrowing-artichokes-in-spite-of-mother-nature%2F&h=510&w=680&sz=78&tbnid=psdy0KZUvoXNxM:&tbnh=91&tbnw=121&prev=%2Fsearch%3Fq%3Dcomfrey%2Bseedling%2Bimages%26tbm%3Disch%26tbo%3Du&zoom=1&q=comfrey%2Bseedling%2Bimages&usg=__cOFmpW8bIcMFGPIzSzuXaBYXOMQ=&docid=sGMpFUBfIbX5nM&sa=X&ei=ODTVT8ihE4q42wWm6rXADw&ved=0CFkQ9QEwAg&dur=36)**

Nevertheless, the mystery plant is not comfrey.

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**Author:** ![Mangetout](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/mangetout/32/19_2.png) [@Mangetout](https://boards.straightdope.com/u/Mangetout)\
**Post date:** [June 11, 2012, 7:14am UTC](https://boards.straightdope.com/t/mystery-plant-identification/624759/10 "2012-06-11T07:14:31Z")

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As others said, hard to tell at this early stage, but assuming it’s a volunteer of something that survived through composting of kitchen/household waste, then cucurbits are a strong possibility, or maybe sunflower.

If the plant is emerging from the soil with already-large/thick cotyledons (seed leaves) and an already-thick stem, this suggests that it’s growing from largish seeds (which again, cucurbit or sunflower would fit).

Are any of the seedlings emerging with the seed coat still wedged on top of the seed leaves? If so, that would be something to examine.

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<div class="post-metadata">

**Author:** ![Raygun99](https://avatars.discourse-cdn.com/v4/letter/r/6f9a4e/32.png) [@Raygun99](https://boards.straightdope.com/u/Raygun99)\
**Post date:** [June 11, 2012, 1:23pm UTC](https://boards.straightdope.com/t/mystery-plant-identification/624759/11 "2012-06-11T13:23:39Z")

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> [@Mangetout](#):
>
> Are any of the seedlings emerging with the seed coat still wedged on top of the seed leaves? If so, that would be something to examine.

None that I’ve seen. I’ll come back to this thread when they’ve flowered.

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**Author:** ![Mangetout](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/mangetout/32/19_2.png) [@Mangetout](https://boards.straightdope.com/u/Mangetout)\
**Post date:** [June 11, 2012, 2:23pm UTC](https://boards.straightdope.com/t/mystery-plant-identification/624759/12 "2012-06-11T14:23:16Z")

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By the time they’ve got another half dozen leaves, it should be easier especially if they’re one of the two possibilities I mentioned.

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**Author:** ![Jackmannii](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/jackmannii/32/311_2.png) [@Jackmannii](https://boards.straightdope.com/u/Jackmannii)\
**Post date:** [June 11, 2012, 4:59pm UTC](https://boards.straightdope.com/t/mystery-plant-identification/624759/13 "2012-06-11T16:59:52Z")

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If its leaves have a cucumber-like fragrance when crushed, I’d vote for it being [borage](http://permaculturecottage.files.wordpress.com/2011/03/bealtaine-permaculture-march-2011-0053.jpg).

Cucumber seedlings seem to have leaves with more of a polygonal/hexagonal shape.

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**Author:** ![Mangetout](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/mangetout/32/19_2.png) [@Mangetout](https://boards.straightdope.com/u/Mangetout)\
**Post date:** [June 11, 2012, 8:24pm UTC](https://boards.straightdope.com/t/mystery-plant-identification/624759/14 "2012-06-11T20:24:14Z")

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> [@Jackmannii](#):
>
> Cucumber seedlings seem to have leaves with more of a polygonal/hexagonal shape.

True, but not necessarily so for the first few true leaves - for example, [this](http://www.hudsonvalleybackyardfarm.com/wp-content/uploads/2010/05/SquashSeedling425.jpg)squash seedling will probably have somewhat palmate leaves later on, but it seems that for a lot of plants, leaf shape is simplified at the early stages of growth.

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<div class="post-metadata">

**Author:** ![Raygun99](https://avatars.discourse-cdn.com/v4/letter/r/6f9a4e/32.png) [@Raygun99](https://boards.straightdope.com/u/Raygun99)\
**Post date:** [June 15, 2012, 6:17pm UTC](https://boards.straightdope.com/t/mystery-plant-identification/624759/15 "2012-06-15T18:17:14Z")

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> [@Jackmannii](#):
>
> If its leaves have a cucumber-like fragrance when crushed, I’d vote for it being [borage](http://permaculturecottage.files.wordpress.com/2011/03/bealtaine-permaculture-march-2011-0053.jpg).
> 
> Cucumber seedlings seem to have leaves with more of a polygonal/hexagonal shape.

I think this might be right. I was walking through a greenhouse today and saw some borage, and it looked very similar to what I’ve got out in the garden right now.
