Sunglow, Moonglow, and Stardrop Flowers
You can find Sunglow, Moonglow, and Stardrop flowers in the Mushroom Forest.
All three of these also drop Myst Pollen.
To get them, you must…
Complete Restoring the Desert Canyon Obelisk
Make sure your Axe is upgrade to at least +2
Sunglow Flowers look yellow/orange, and have a higher chance of dropping during the day (10AM to 6PM)
Moonglow Flowers look bright pink, and have a higher chance of dropping in the evening (6PM to 10PM)
Stardrop Flowers are bright blue, and have a higher chance of dropping at night (10PM to 12AM)