Leaf: 7-9 rounded lobes with deep and shallow notches. Tips large and wavy.
Fruit: Acorn with fringe around cup. These feed many wildlife.
Tree Form: Relatively short trunk with heavy, sprawling branches

photos: MnDNR

Leaf: oval to triangular shaped with jagged teeth.
Bark: Thin, papery; becomes pure white with age, marked by black pores; peels off into thin sheets.
Fun Fact: Bark historically used to make canoes and wigwams by Ojibwe peoples.

photos: MnDNR

Needles: Clusters of five wispy needles (memory device: 5 needles for the 5 letters in WHITE).
Bark: Smooth and green-gray when young; furrowed and gray-brown when older.
Fun Fact: A favorite for bald eagles to nest.

photo: MnDNR

Blooms: July - October
Found: In sunny to partly shady fields or along roads and water shorelines.
Goldfinches and mourning doves eat the seeds, and two types of moths rely on it for their caterpillars. Bumblebees and honeybees also visit the flowers.

photo: Lisa Filter /P&TC

Blooms: May - August
Found: In part shade to sun in wet meadows.
Petals: Typical iris shape, 3 to 4 inches across, blue to blue-violet, sometimes red-purple and rarely pale blue.

photo: Jennifer Quam / P&TC photo contest

Blooms: May - July
Found: On cliffs and forest edges.
Petals: Red/pink with club-like petals.
Fun Fact: Hummingbirds drink nectar from this flower.

photo: Jelieta Walinski/P&TC photo contest

There are many types of caterpillars roaming around in Minnesota parks. They may be fuzzy, stripy, or plain, and each will transform into a moth or butterfly. The ones here are the Tussock Moth (top left), the Woolybear (bottom left), and the Monarch, which can be found on milkweed plants.

photo: Lisa Filter/P&TC; 1sock / FlickrCC; Maria L. Evans / Wikimedia CC

Often invisible until the sun hits it just right. Spiders create these fantastic contraptions to catch prey. The silk is made in glands on the spider's abdomen. Many spiders will eat their own web each day and rebuild a new one the next day.

photo: Aaron Kostko/P&TC Photo Contest

This water beetle is usually found swimming on the surface of a lake or pond where they swim wildly in circles. This movement makes small waves, which may help them find insects to eat via echolocation.

Udo Schmidt from Deutschland, CC via Wikimedia Commons & Under the same moon via Flickr CC

Appearance: Black and white with red eye.
Found: Swimming in lakes close to shore.
Listen for: Wailing tremolo call and short hoots.

photo: Will Stenberg/P&TC Photo Contest

Appearance: Flies in swooping pattern with yellow feathers flashing with each flap.
Found: At forest edges or in open fields with scattered trees.

photo: Keith Williams/ FlickrCC

Top-heavy bird that flies quickly over water where it spends most of its time. Makes a piercing rattle sound. Males and females similar.

photo: Kevin Cole from Pacific Coast / WikiMedia CC

Appearance: Orange with yellow edge, shelf-like layers.
Found: On decaying stumps and logs or an injured tree in late summer or fall.
CAUTION: Never eat any mushroom unless knowledgeable.

photo: Jean-Pol GRANDMONT/WikimediaCC

Appearance:  Looks like a cat's dropping attached to a twig.
Found: On cherry and plum trees.
Note: While this fungus isn't good for the tree, many live fine with it.

photo: Sasata/Wikimedia CC

Deer hooves (photo) are commonly seen on or near trails. Their hooves make two side-by-side teardrop tracks. Other common prints are from raccoons, rabbits, opossums, and coyotes.

photo: QS Wiki Account, CC0, via Wikimedia Commons

Snapping turtles are Minnesota’s largest turtle species and weigh up to 45 pounds. They're graceful swimmers who spend most of their time in the water, swimming along the surface. Once overharvested and on the endangered species list from 1984-2013, they have now rebounded. They are docile and avoid humans but will defend themselves if threatened.

photo: USFWS Midwest Region/public domain

There are two tree frog species in MN, which look similar. Both are about 1 inch. They change colors in seconds to match their surroundings, varying from greens to grays.

photo: Richard Crook / Flickr cc & Fredlyfish4, CC 4.0 via Wikimedia

These stone steps, located near Douglas lodge, were constructed in the 1930s.

photo: Courtesy of Connie Cox / DNR

The fishing pier is located on Lake Itasca near Douglas Lodge.

photo: Courtesy of Connie Cox / DNR

This water fountain is located along the bike trail and was constructed in the 1930s by the Civilian Conservation Corps.

photo: Courtesy of Connie Cox / DNR