Mycoscout The short answer
A parasol mushroom (Macrolepiota procera) stands on a tall, slender stem with a brown snakeskin pattern, carries a movable double ring, has white gills, and prints white. A false parasol, better known as the green-spored parasol (Chlorophyllum molybdites), has a smooth stem, gills that go from white to grey-green as it matures, and a dull grey-green spore print. It grows in lawns and meadows in troops and fairy rings. Kuo says young specimens cannot be separated from the shaggy parasol without a mature print; MDC gives the green print as the key feature.
The limit: a young false parasol has white gills, and a print takes hours. Kuo says young specimens can be nearly inseparable from the shaggy parasol (Chlorophyllum rhacodes). Check the stem, the gills, the habitat and the print together, not one of them.
Side by side
| Feature | Parasol mushroom | False parasol (green-spored) |
|---|---|---|
| Cap | 10–25 cm (3–8 in); pale buff to brown, breaking into darker scales, with a central bump | 10–22 cm (2–12 in); whitish with brown to pinkish-brown scales concentrated at the center; bald as a button |
| Underside | Gills white or pale cream, free, crowded; may darken with age | Gills white when young, grey-green to brown-green as spores mature; free |
| Stem and base | Up to 30 cm tall, 1–1.5 cm thick, slender; brown snakeskin banding; bulbous base | 8–20 cm, 1.5–3 cm thick, smooth, white to brownish, slightly enlarged downward; browns on handling |
| Ring | Large, double-edged, movable | Persistent, whitish, like a napkin ring; greenish to brownish lower edge |
| Flesh when cut | White, no significant change | White; unchanging, or reddish brown to pale pink at the base |
| Smell | Not distinctive | Not distinctive |
| Spore print | White or very pale cream | Dull grey-green |
| Habitat and growth | Woodland clearings, grassy woodland edges, pasture, dunes, old pastures; alone or scattered | Lawns, meadows, pasture; troops, arcs and fairy rings |
| Season | July to November (UK); June to October (Missouri) | Summer through fall; July to September (Missouri) |
| Range | Europe; North American collections under this name may be a different species | Widespread in North America, most common from the Great Plains east |
Features that do not separate them
- Size and shape. Both are big, with a scaly cap, a central bump and a ring. That silhouette is shared by the shaggy parasol as well.
- White gills on a young one. False parasol gills start white. A young specimen with white gills proves nothing.
- Scales on the cap. Both have them. Scale color overlaps.
- A ring you can slide. The parasol's ring is the famous movable one, but the false parasol has a persistent ring too, and Kuo describes it with a greenish to brownish lower edge that beginners miss.
- Red staining. MDC separates the reddening lepiota (Leucoagaricus americanus) by red bruising, and First Nature says the shaggy parasol flushes reddish when cut. The false parasol can also stain reddish brown at the base. Staining narrows the field; it does not clear a mushroom.
- One green spore. A green print is a strong sign for the false parasol. A print that looks white is only reassuring if it is thick, mature and taken on both white and dark paper.
First Nature adds a parasol-specific caution: avoid caps under 10 cm, because small poisonous Lepiota dapperlings can pass for a young parasol.
What happens if you get it wrong
The false parasol is a gastrointestinal irritant. MDC describes violent gastrointestinal upset, vomiting and diarrhea severe enough to require hospitalization, and says it is not deadly. NAMA calls it the most common cause of mushroom poisoning in North America, with severe distress and sometimes blood in vomit and stool, and notes pets are poisoned too. For gastrointestinal irritants as a group NAMA gives onset at 20 minutes to 4 hours, with fluid and electrolyte replacement the main hospital measure in severe cases.
The shaggy parasol is a separate risk: First Nature reports serious illness in some people and advises not picking it to eat, while many guides still list it as edible. Sources disagree, so this page does not treat it as edible.
If symptoms start 6 hours or more after a meal, suspect an amatoxin species instead and say so to poison control.
Using an app to check a find
A photo can show the stem pattern, the ring and, on a mature specimen, grey-green gills. It cannot show the spore print, and it cannot age a young white-gilled specimen for you. Mycoscout leads with the edibility verdict, shows its confidence, and names the green-spored parasol and the shaggy parasol as look-alikes with the checks to make in hand. It is not a clearance to eat. The free spore print is the test every source here relies on, and a local mycological society can confirm what the print suggests.
Frequently asked questions
How do you tell a false parasol from a parasol?
Take a spore print. The parasol prints white; the false parasol prints dull grey-green. Mature false parasol gills turn grey-green, its stem is smooth, and it grows in lawns in rings. The parasol has a brown snakeskin pattern on a tall stem and white gills.
Is the green-spored parasol deadly?
No source we read calls it deadly. It causes violent vomiting, diarrhea and cramps, sometimes with blood, and can need hospital treatment for fluid loss. NAMA calls it the most common cause of mushroom poisoning in North America.
What about the shaggy parasol?
Chlorophyllum rhacodes has a smooth stem and flesh that turns reddish when cut, and a white print. Young ones are hard to separate from young false parasols without a print. First Nature reports serious illness in some people and advises against eating it.
Is the green-spored parasol safe to touch?
NAMA says it is safe to handle for picking and disposal. The risk is eating it, which is why it advises removing them from yards where children and pets play.
Sources
How we checked this page: the Mycoscout team cross-checked every edibility, toxicity and look-alike statement against the sources below on October 31, 2026. It has not been reviewed by a mycologist.
- Green-Spored Lepiota (Chlorophyllum molybdites), Missouri Department of Conservation. Accessed October 31, 2026.
- Parasol Mushroom (Macrolepiota procera), Missouri Department of Conservation. Accessed October 31, 2026.
- Chlorophyllum molybdites, MushroomExpert.com (Michael Kuo). Accessed October 31, 2026.
- Macrolepiota procera, Parasol Mushroom, First Nature. Accessed October 31, 2026.
- Chlorophyllum rhacodes, Shaggy Parasol, First Nature. Accessed October 31, 2026.
- Mushroom poisoning syndromes, North American Mycological Association. Accessed October 31, 2026.
