Scavenger Hunt

A plant with obovate leaves

Obovate leaves definition- leaves that are wider near the tip or apex of the leaf.

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Asimina Triloba (pawpaw)

Description- alternate leaves, large obovate leaves, entire margins, pinnate venation, glabrous, prefers moist environments, green edible fruits.

Found behind Jennings Hall.

A plant with actinomorphic flowers

Actinomorphic flower definition- a flower that has radial symmetry. Can be divided into identical sections along any plane.

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Hemerocallis lilioasphodelus (yellow daylily)

Description- trumpet shaped yellow flowers with radial symmetry, long arching leaves, superior ovary, fruit are capsules, 6-merous.

Found outside of apartment buildings along 12th street.

Toxicodendron radicans (poison ivy)

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First identified because of characteristic 3 compound leaves with middle leaf extending on long petiole. I also noticed it because it had begun changing colors, which is common for poison ivy to do early in the fall. Other characteristics of poison ivy are that it is a woody vine and can have variable leaf margins but are many times toothed or lobed.

Found at Alum Creek park.

Fraxinus spp.

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Fraxinus pennsylvanica (green ash)

Determined to be an ash because of the compound, opposite leaves. Also the distinctive brown buds that sit on top of a “D” shaped leaf scar. I decided that it was a green ash verses other varieties because the bud sat on top of the leaf scar, unlike white ash that have buds sitting down in a “C” shaped scar. I also found the seedling in a wet-mesic are, a preferred site for green ash. I was unable to find any plants bigger than this due to emerald ash borer killing almost all of the larger trees in our area.

Found at Alum Creek park.

A member of the Lamiaceae with an explanation of the characters that you used to determine the family identification

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Species unknown

 

The characteristics I used to determine that this plant was in the mint family was first of all the most obvious, the aroma. Next, I felt the stem and confirmed that it was square. I also noticed that the leaves were opposite and serrate. And finally, I felt that the plant was pubescent. All of which are common characteristics for the family.

Found behind Jennings Hall.

A member of the Poaceae with an explanation of the characters that you used to determine the family identification

Bambuseae

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Bamboo is not what would typically come to mind right away when thinking about the grass family. It is, however, a member. Typical family characteristics that I found that it possesses are alternate leaves, tubular sheathing leaves with blades at nodes, and ligules or thin membranes where blades are attached.

Found in my backyard.

3 thoughts on “Scavenger Hunt

  1. That’s so interesting that you found bamboo, even to find it in your backyard! I didn’t know they were part of the grass family. The leaves look lanceolate with entire margins.

  2. I appreciate the fact that you posted a picture of the Poison Ivy after it had turned red. I did not know that it changed color before dying for the year. The picture clearly shows the three defining leaves, two opposite of one another with the third extending on a long petiole. Great find, thanks for sharing!

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