rough speckled shield lichen

Edibility

Edibility unknown — do not eat

Never eat a wild mushroom based on this site or any app.

Photos

Lookalikes

No lookalikes are recorded for this species yet. That does not mean there are none. Many mushrooms look alike, so never rely on appearance alone.

Season

When this species has been recorded, by month, from open-licensed US and Canada observations. It shows when people report it, not a guarantee it is fruiting.

The highlighted bar is the current month.

Where it is found

States and provinces with the most records. Check the foraging rules for the place you plan to visit.

• North Carolina 867 records · Foraging rules
• Michigan 614 records · Foraging rules
• Virginia 548 records · Foraging rules
• Minnesota 501 records · Foraging rules
• New York 465 records · Foraging rules
• Ontario 433 records · Foraging rules
• Pennsylvania 412 records · Foraging rules
• Maryland 410 records · Foraging rules
• Wisconsin 372 records · Foraging rules
• Tennessee 331 records · Foraging rules
• Alabama 304 records · Foraging rules
• New Jersey 293 records · Foraging rules
• Maine 238 records · Foraging rules
• West Virginia 235 records · Foraging rules
• Massachusetts 234 records · Foraging rules

All state and province foraging laws

About

Punctelia rudecta, commonly known as the rough speckled shield or the speckleback lichen, is a North American species of foliose lichen in the family Parmeliaceae. This species can be readily identified by the light color of the thallus underside, the relatively large lobes at the edges of the thallus, and the tiny white pores present on the top of the thallus that are characteristic of the genus Punctelia. The lichen is quite abundant and widespread in the eastern and southeastern United States, and is less common in Canada and Mexico. The lichen usually grows on bark, and less commonly on shaded rocks. There are several lookalike Punctelia species; these can often be distinguished from P. rudecta by differences in distribution or in the nature of the reproductive structures present on the thallus. Although Punctelia rudecta was previously thought to have a much more expansive global distribution, phylogenetic analysis revealed a species complex that has subsequently been split into four distinct cryptic lineages with more restricted distributional ranges. Punctelia rudecta is moderately sensitive to air pollution and has been assessed as a suitable candidate for biomonitoring air quality.

From Wikipedia, CC BY-SA 4.0. Read the original article.