the.com/earthstar
a fungus that splits open like a star and puffs spores when raindrops punch it
means A puffball-like fungus whose tough outer layer splits and peels back into pointed rays, leaving a central spore sac that releases a cloud of spores when struck by rain or touch.
from A plain English compound of "earth" and "star" — naming exactly what you see: a star-shaped fungus sitting on the ground. The scientific name carries the same picture in Greek dress: Geastrum, from "gē" (earth) and "astron" (star), a cousin of the words behind "geography" and "astronomy."
- rain trigger
- Falling drops squeeze the sac to fire spore clouds
- weather act
- Outer arms curl and uncurl with humidity
- shape shift
- Begins as a buried onion, then peels into points
- hygroscopic
- Some species walk by rolling when dry
- global crew
- Found on every continent except Antarctica
geastrum fimbriatum — common earthstar fungus found worldwide with distinctive fringed cup-shaped base
geastrum pectinatum — earthstar species native to europe with a distinctive pectin-like collar around the spore sac
geastrum triplex — collared earthstar found across temperate zones with three-layered peridium structure