Herbert Hoover National Historic Site
- Manager
- National Park Service
- Designation
- Historic or Cultural Area
- Size
- 182 acres
- Region
- Iowa
Mushroom harvest rules
Restricted
US National Parks (National Park Service)
Removing plants is prohibited in national parks unless the superintendent allows it. Gathering is limited to items the park designates. Mushrooms are not named in the rule and parks differ, so check the park first.
36 CFR 2.1(a) prohibits possessing, removing or disturbing plants or their parts. Under 2.1(c) a superintendent may designate certain fruits, berries, nuts or unoccupied seashells for hand gathering for personal use or consumption, but only after a written determination that gathering will not adversely affect park resources. The superintendent may also limit the size, quantity or location. Sale or commercial use of natural products is prohibited. The regulation does not name mushrooms, so it varies by park. Glacier's compendium prohibits picking mushrooms, while Mount Rainier allows one gallon per person per day for personal use. Check the park's compendium.
Official source: eCFR: 36 CFR 2.1 Preservation of natural, cultural and archeological resources
Last verified: November 12, 2026
Rules change. Confirm with the land manager before you pick.
See the foraging laws for Iowa.
Location
The marker shows an approximate point, not a boundary. Check the manager's map for exact borders and access points.
Species recorded in Iowa and in season now
Based on state-wide records for this month, not specific to this land. Edibility rules still apply: never eat a wild mushroom based on this site.
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Brown Rust of Wheat
Puccinia recondita
Edibility unknown — do not eat -
Star Rosette Lichen
Physcia stellaris
Edibility unknown — do not eat -
Puccinia dioicae
Edibility unknown — do not eat -
Eastern speckled shield lichen
Punctelia bolliana
Edibility unknown — do not eat -
Script Lichen
Graphis scripta
Edibility unknown — do not eat -
Candleflame Lichen
Candelaria concolor
Edibility unknown — do not eat -
rough speckled shield lichen
Punctelia rudecta
Edibility unknown — do not eat -
Puccinia andropogonis
Edibility unknown — do not eat -
Smooth Shadow Lichen
Phaeophyscia ciliata
Edibility unknown — do not eat -
Bottlebrush Frost Lichen
Physconia detersa
Edibility unknown — do not eat -
juniper-apple rust
Gymnosporangium juniperi-virginianae
Edibility unknown — do not eat -
Buellia dakotensis
Edibility unknown — do not eat
Land data: USGS PAD-US (public domain).