Soil drainage, angle to the sun, exposure to the elements, and other factors create microclimates around the park. Microclimates support different types of plant species.
For example, steeply-sloped, rocky soil is where you will find patches of buckwheat and Acton encilia. On the lee side of the hills, lacy phacelia grows where it is protected from the predominantly westerly winds.
Patches of different flower colors can tell you where the soil conditions change. Violet circles in low-lying areas are often owl's clover, which grows where soil is more moist from pooling rainwater.
Look for other indicators of microclimates around the park. Remember, stay on official trails when looking at flowers; walking in the habitat changes the soil density, which makes a human-made microclimate that will affect what grows there for years to come.