Home / Species Database / Purple-spored Puffball

How to Identify Purple-spored Puffball

Calvatia cyathiformis
EDIBLE* Season // Aug-Oct Family // Unknown

Description

Medium to large puffballs 3-8 inches tall and 2-6 inches wide, shaped like inverted pear, top, or vase with prominent thick sterile base comprising lower half. White to grayish-brown exterior becoming purple-brown with age. Interior pure white when edible, maturing to purple-brown spore mass. Distinguished by cup-like sterile base that persists after spores disperse.

Specimen Profile

FamilyUnknown
GenusCalvatia
EdibilityEdible*
Toxicityunknown
SeasonAug-Oct
HabitatSaprobic in grasslands, pastures, meadows, lawns, fields, and open woods. Prefers disturbed areas with rich soil. Common in parks, golf courses, roadsides, and agricultural lands. Often grows in rings or scattered groups.
RegionEastern North America, Midwest and Great Plains, Pacific coast, Southern Canada, Widespread across North America, Cosmopolitan distribution

Habitat & Distribution

Habitat: Saprobic in grasslands, pastures, meadows, lawns, fields, and open woods. Prefers disturbed areas with rich soil. Common in parks, golf courses, roadsides, and agricultural lands. Often grows in rings or scattered groups.

Region: Eastern North America, Midwest and Great Plains, Pacific coast, Southern Canada, Widespread across North America, Cosmopolitan distribution

Seasonality

Late summer through fall, typically August-October. Peak fruiting in September after late summer rains. Can appear into November in mild climates.

Typical months: Aug-Oct

Common Lookalikes

Always verify identification to avoid these similar species. The differentiator is the point — learn the one or two tells that separate them:

Other Calvatia species with sterile base (similar edibility when white inside)

DEADLY: Immature Amanita buttons (ALWAYS CUT OPEN

HOW TO TELL APART

will show developing gills/cap inside)

Scleroderma species/Earthballs (toxic, purple-black interior from start, no sterile base)

Handkea (Calvatia) excipuliformis (nearly identical, same edibility)

BROWSE ALL SPECIES →

Track your Purple-spored Puffball finds

Pin the patch before you leave it. Coordinates, photos, and field notes stay on your device — and the offline lookalike guide travels with you into the deep woods.

Download Mushroom Tracker

Disclaimer: This guide is for educational purposes only. Never consume a wild mushroom unless you are 100% certain of its identification.