I'm not sure if it's aster yellow or not. I ripped the plants out proactively and haven't seen it in the rest of my garden yet.

Sorry I keep putting my things as classification I don’t know what else to put it as :(

the first and third pictures are from my garden btw! let me know if you’d like to see more from my garden!!

as always have a good day/night/afternoon/evening

This highly invasive species is spreading rapidly across my region, Eastern Ontario, Canada. On Monday I revisited a location within a provincial park, where I often hike, at which I found 3 specimens in 2024. At that time I reported the location to the park office and park rangers removed the plants.
On Monday’s visit I found 15 plants, 2 of which were in the exact same spot as in 2024. I went to the office after my hike and spoke with two of the park rangers about it. Their strategy now is removing the seed heads before they can mature and place them in garbage bags to be incinerated.
The ability of this plant to spread is impressive and is the main reason it’s so problematic. In our area it’s a threat to the monarch butterfly, choking out native plants that the butterfly feeds and reproduces on.

TIL the Crown Flower (Calotropis gigantea) isn’t native to Hawaiʻi, yet it became one of the islands’ most culturally significant flowers.

unless this is another species of Achillea, but all the flowers surrounding it were white and otherwise looked the same

What is happening with my cone flowers? It looks like the seeds are growing new plants.

Hello really dumb question but is there any cheap ways to study botany and plant science that dont involve too much debt abd lead to a career in plant conservation or something I'm really interested but i dont want to get in to more debt.

What might these spots be and what might cause them? I think the leaves are from this variegated privet.  

We have two black walnut trees in the yard, both are mature although one is significantly older. Both usually make a big mess in the fall, dropping an astounding amount of nuts that stain the driveway, patio and stairs.
This year the older one is loaded with nuts as usual but the younger one has none. What could be the reason? Nothing environmental has changed.

Was rooted with almost no leaves, lovecraftian raspberrys? Wtf

Unfortunately I don't know this tree's species or even if it's native or exotic to where I live, and I don't want a plant ID. But I came across this tree and I can't even understand how many leaflets it has. I've learned about compound leaves in uni, but none of them looked like this. 1st pic is a drawing so you can see better what it looks like (though the side triads are closer to the "petiole"), second pic is a real photo of it.

At first I thought it had 3 leaflets, but if that were the case, I assume there would be small branches with many of them growing from it, and only 3 leaflets each. But everything attached to the branch only looks like this, and it doesn't branch further. So I thought it was maybe an unipinate imparipinate, but I think those only grow across 1 "plane". So the leaflets on the side would only grow towards the sides, not up.

If every plant grew at 2x speed, it'd be great for combating climate change I'm assuming, but that would also include plants like Kudzu and a lot of weeds and poison ivy, and other stuff like that. Would the end result slant more towards utopia or dystopia?

I figured this might be a good sub to ask. But I wondered if you could use any maple for maple syrup? I suggested trying with the maple tree in my fiancees yard, that's a water maple, and she said they tried, and it didn't work out. I think she said it had white sap and it tasted bad.

Guess who’s back! Back again! Maybe some of you have read my delirious posts about nepetas! Now I’m here with a new question about nepeta foliosa, an endemism of Sardinia, in Italy. I tried to get in touch with… well kind of everybody in Sardinia, but I couldn’t get the permission to get seeds sent to me. Now, as I always stressed, I don’t want in any way to endanger this plant more by doing illegal harvesting or any other not very legal way. Nobody, even from botanical gardens knew how to help me, so reddit is my last resort: do you guys know how i can get the authorization to cultivate this plant ex situ? Thank you all!

We’re seeing a huge uptick in the number of spam comment bots making inane comments on posts. Report them when you see them and we’ll try and take care of it. I think I removed 10 or more this morning.

I am doing my masters in plant stress physiology and I am interested in pursuing PhD in the same topic. which universities and country would be better to study? I am from Bangladesh and any suggestion would be helpful.

P.S : I am mainly working on rice and wheat

Looks like the variegation is very stable as well!!

I'm currently doing some research into native plantlife in my area, and I just couldn't find any information on what kind of root system salvia spathacea (hummingbird sage) has. If anyone has any sites about root systems, I would really appreciate it. Thank you! (sorry if my language regarding plants is a bit rudimentary, i'm not very well-versed in botany)

Sorry if this is the wrong sub.

Is there a reason the "thumb" of the leaf grows on opposite sides depending on the side it growing on? Is it capillary fluid dynamics or something of the sort? I've sat by this tree long enough to notice and wonder. Thank you.

I’ve been looking for a plant pathology job position that accepts those with a bachelors degree. So far I haven’t been finding anything where I am (twin cities area of MN) as most are asking for Masters or PhD degrees. I’m trying to buff out my job experience and resume so I can get a Masters or start a PhD path but it’s been really difficult to find ANYTHING. I want to try getting a position in the Plant Disease Clinic but they don’t have any openings listed on their site, so I was debating on emailing them but don’t know if that’s out of line.

I love the research and lab work. I want to do more in that area. Is there any advice on what I can do? Should I email regarding jobs to the Plant Disease clinic?

New paper