Hoarhound-Marrubium vulgare

This non-native plant that often grows in disturbed areas is hoarhound (Marrubium vulgare), a member of the mint family (Lamiaceae). It has square stems and opposite leaves. It is native to Europe, Asia, and northern Africa and brought over to the U.S. as a garden plant with various medicinal properties. However, it escaped gardens and now grows out in the wild.
The small white flowers are followed by burs with hooks that can catch on anything that brushes up against them.
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Mountain Monardella-Monardella odoratissima

This colorful flower growing in clumps and with a noticeable minty odor is Mountain Monardella (Monardella odoratissima), a member of the Mint Family (Lamiaceae). It is native to the far western part of North America.

Butterflies are the main pollinators.

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Wild Mint-Mentha arvensis

The only native species of mint to the U.S. is Wild Mint (Mentha arvensis), in the Mint Family (Lamiaceae). The mint family is relatively easily distinguished by opposite leaves that alternate directions up the stem. These leaves are quite fragrant and can be used in teas and desserts.

The flowers appear at the apex of the stems (where the leaves connect to the stems). They aren't very large.

For more information about wild mint, click here.