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Content tagged with "plants"

Image of a box elder tree

Box Elder

Commonly mistaken for poison ivy vine, the box elder is a tree with three to seven divided leaves, and the leaflets are pinnate like a feather. Leaves are also opposite (not alternate) on a stem.

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image of a boxelder bug

Boxelder Bug

Notoriously numerous, boxelder bugs have a flattened back with red markings, sometimes in the form of an X on the back, plus a red line along the outer edge of the closed wings. There are noticeable veins on the membranous portion of the forewings.

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Photo of tree-branch flagging

Branch Flagging Slide Show

This tree displays branch flagging, which can have many causes. In this case, female periodical cicadas cut the tree's twigs with their ovipositors in the process of laying their eggs. The small cuts weakened the twigs, which turned brown, then broke during strong winds.

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Photo of brittle naiad aquatic plant held in a person’s hand

Brittle Naiad (Brittleleaf Naiad)

Four species of naiads have been recorded in Missouri. Brittle naiad (Najas minor), an introduced species, is expanding its range and is expected to become more widespread. Its leaves curve backward during the growing season and have teeth along the edge that are visible without magnification.

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Photo of bushy clump of brown-eyed Susan plants.

Brown-Eyed Susan

Brown-eyed Susan is a bushy perennial with much-branching stems. It blooms June–November.

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Photo of brown-eyed Susan flowers.

Brown-Eyed Susan (Flowers)

The flowerheads of brown-eyed Susan are numerous and are much smaller than other Rudbeckia species, reaching only about 1 inch across.

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Photo shows walnut tree with browning leaves

Browning Leaves Indicate TCD

In midsummer, TCD-infected trees may show wilted brown leaves on branches high in the canopy.

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Photo of buffalo bur flower and leaves.

Buffalo Bur (Flower and Leaves)

A spiny annual with bright yellow flowers and dandelion-like leaves, buffalo bur is an introduced member of the nightshade family.

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