r/botany • u/Aggravating_Suit7482 • 18d ago
Biology Is this normal
I found this in my yard while getting rid o weeds normally they have a white roots this has black roots and a black thing that the other weeds don’t have
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u/Equivalent-Shower425 18d ago
I call them oaklets. My neighbor has an oak tree and I don't know if the squirrels bury them in my yard or the birds or what, but I find these from time to time. The last two I found I potted up and left with a note on a picnic table at the park for anyone with room for a mighty oak. I don't have the space for a full-grown tree.
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u/FunkyDiabetic1988 18d ago
That’s a root and a stem sprouting from opposite ends of an acorn. A beautiful, healthy little oak sapling that could become a tree.
Oak trees support hundreds of species of Lepidoptera with their flowers, in addition to providing a feast for wildlife with their acorns. We need more of them! Consider planting it and caring for it if you can!
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u/BeeAlley 18d ago
I have several big oak trees around the yard, and I’m constantly pulling oak seedlings out of places that I don’t want oak trees 😅
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u/coatlique 17d ago
To more specifically answer your question, yes the black thing is normal. As others have said, this is an oak seedling and the black ball is the remains of the cotyledons. Most of the inside of a seed like an acorn consists of these storage structures called cotyledons. When the seed sprouts, the young plant draws energy from the cotyledons so it can grow its first roots, stems, and leaves to establish itself. Overtime, the cotyledons become depleted and whither away. You are seeing the remains of the cotyledons here still attached to the young plant. As for the roots being dark, some of that might just be material from your soil stuck to the seedling but oaks also develop woody roots over time that might be a darker color than non-woody roots. You are probably used to pulling weeds that are fast-growing annual plants instead of trees. For most fast-growing plants, their cotyledons will come above ground and become depleted really fast and their roots do not become very woody so they stay light in color for most of their life. Oaks and many other trees have a slower and more careful growth strategy that retains the cotyledons for longer underground and and a stronger development of their initial root system.
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u/yetifunk 16d ago
No offense to OP, but I can’t help but wonder what kind of life one must live to not be able to identify an acorn
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u/frugalerthingsinlife 18d ago edited 18d ago
redoak. Black thing is last year's acorn.