Lab Notes Weeds Flashcards
What is a weed?
Any plant that is unwanted in an area for what it does, out of place and are invasive.
How fast do weeds reproduce?
Very fast and invasive
Weeds __________ any other species present in an area
Outcompete
What is poison ivy?
A plant (with 3 leaves) that causes, or can cause, bad rashes.
Triparte
3 leaves, like the poison ivy leaf
What part of the poison ivy plant are people allergic to?
The entire thing can produce the oil that people are allergic to
Oil is an example of what?
Secondary metabolite
What is the compound in the plant that people are allergic to?
Urushiol
Can poison ivy be burned?
NO! It can release the toxins from the urushiol and get into the air and can cause allergies as well.
Does everyone have a reaction to poison ivy?
No, some dont have reactions, some mild, and some very bad.
How do the vines of poison ivy go up a tree?
Vines grow straight up, they do not twirl around.
English ivy
a type of vine plant that has white spots that do not contain chlorophyll
Is the English Ivy invasive?
Yes, it is very invasive, especially here on campus
How many seeds does a fruit contain?
1 seed, which contains a baby plant
What do the barbs on the seeds do?
They help the seeds disburse (they can get on animals for example)
Why do plants need a disposal mechanism?(3)
To avoid overcrowding, increasing genetic variability, and to avoid genetic impoverishment
Is inbreeding okay for plants?
Only for a SHORT TERM is it okay.
Is the winter creeper a native species?
No
Is the English ivy native to KY?
No, native to Europe
What is the worst weed in the state of Kentucky?
Honey Suckle Bush
Where does the honey suckle bush come from?
China
Why does the honey suckle bush thrive here if it is native to China?
Much of China has a similar climate to Ky.
Honey Suckle bush easily ________ other plants.
Outcompetes
Why is the honey suckle bush so successful in reproducing? (4)
One of the first to produce leaves in Spring, one of last to shed off leaves in fall, produces many fruits w/seeds, seeds are bright red which attracts birds to spread seeds around
