Helianthus occidentalis
By: Austin R. Dru M. Caitlin M.
and Victoria C.

Plant identification

Helianthus occidentalis, the one common name is the sunflower

Results of Quadrat Study

The pattern that the Helianthus occidentalis grows in is in an aggregate pattern, grown in groups. Our estimated population in the Liberty North meadow was 3,800 per acre.

Description of Ecosystem

The ecosystem around our picked plant was near the construction site, as you can see from the photo below. The soil was dry, lots of sunlight, and the pH was slightly higher than other areas that did not have the Helianthus occidentalis.

Research Undertaken

Used http://www.floralibrary.com/ to identify our plant.

Used http://homeguides.sfgate.com/eats-pea-sunflower-seedlings-59608.html to identify what eats our plant

Used google maps to show the are we were researching

And some help from Mrs.Hubinger


If the area has a higher pH and higher light intensity, then you are likely to find Helianthus occidentalis.


The procedure that we undertook was that we decided to compare the conditions of where the Helianthus occidentalis grew and where they don't. First, we observed the amount of sunlight and the pH balance where sunflowers were growing. Next, we measured the same two variables where not growing. We compared the results of both areas and discovered our results.


There are more sunflowers growing in a higher pH level and more sunlight intensity.

Retesting Or Additional Testing As Needed With Updated Results


Comment Stream

3 years ago

Lets go team!!