pf2e.fyi
From Pathfinder Adventure Path: Gatewalkers, which isn't enabled.

Blooming Jijioa

HAZARD 5
Stealth +16 (expert)
Description An invisible solar fare causes this patch of unassuming ground cover to suddenly bloom into a radioactive feld.

Disable DC 22 Survival (trained) to remove a 5-foot square of jijioa, or 5 points of fire damage to destroy an affected area

AC 25; Fort +17, Ref +9
HP 52 (BT 26); Immunities critical hits, precision; Weaknesses fire 10

Solar Bloom
Trigger The jijioa patch is exposed to a solar fare

Effect The countless jijioa flowers suddenly bloom, magnifying the ambient heat of the sun a hundredfold. Creatures in the jijioa patch take 4d6 fire (DC 22 basic Fortitude). Creatures that end their turn in the patch continue to take damage in this way as long as the jijioa is in bloom.
Reset An hour after blooming, a jijioa patch goes dormant for 1 week.
Pathfinder Adventure Path: GatewalkersORC