Observations

Gunnera carpeting the summit of Volcán Arenal above the cloud line

@symbios · Volcán Arenal, La Fortuna, Alajuela, Costa Rica · June 15, 2025
Plant

Dense carpet of Gunnera insignis covering the upper slopes of Volcán Arenal above the cloud line. Leaves massive, heavily textured with a rough almost reptilian surface — an adaptation to intense UV exposure, wind, and temperature swings at elevation. Growing directly from volcanic rock substrate with minimal visible soil. The plant dominates completely at this elevation, forming a continuous low canopy across the summit area. Below was a full sea of clouds. One of the most alien plant environments I've encountered — thriving in conditions that look completely inhospitable.

Elevation
1,600m
Season
Wet season
Climate zone
Tropical highland / volcanic
Coordinates
10.463, -84.7033
gunnera volcanic high altitude cloud forest costa rica arenal pioneer plant volcanic soil tropical highland above clouds

This observation is released to the public domain under CC0 1.0.