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Henbit Deadnettle (Lamium amplexicaule L.)

Also known as henbit, common henbit, greater henbit.

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Summary
Range
Habitat
Life Cycle
Uses
Relatives
Links
Photos

Photo © John P. Friel, CC BY 4.0.

↑Summary

A low-growing, sprawling annual in the mint family. Native to Europe, Asia, and North Africa, and introduced in North America.

↑Range - Expand

Legend	Color
Introduced
Introduced or Not Present

This tentative map is based on our own research. It may have limited data on Canada and/or Mexico, and there is some subjectivity in our assignment of plants as introduced vs. expanded. Read more in this blog post.

Although this plant occurs somewhere in each of these regions, it may only occur in a small part of some or all of them.

↑Habitat

Prefers exposed conditions in full to partial sun, with rich, loamy soil, and average to moist conditions.

Usually found in areas where the soil is tilled or cultivated, including agricultural fields, pastures, gardens, lawns, and mulch beds. Cannot survive repeated mowing, but able to complete its life-cycle in managed lawns by blooming and setting seed before mowing starts. Usually found more in margins of lawns, especially up against buildings.

Compared to purple deadnettle (Lamium purpureum), this species prefers slightly sunnier locations and tolerates slightly drier conditions, although both prefer similar conditions and can often be found growing together.

↑Life Cycle

Primarily a winter annual.

Establishes a fairly shallow and delicate central taproot, and spreads out in a mat-like habit, sometimes rooting at nodes, but not as extensively as with many mint-family plants.

Begins flowering in late winter to early spring. Usually goes dormant in the summer but can continue blooming into the fall.

↑Uses

Lamium amplexicaule has some traditional medicinal uses, including to treat diabetes.

Although other Lamium species are sometimes cultivated as garden plants, this one is usually only viewed as a weed in gardens.

Several different Lamium species occur in North America; all are introduced. This species is the most widespread, and in many areas the most common. purple deadnettle (Lamium purpureum) is also widespread and common, L. album and L. maculatum slightly less so.

There are some members of the broader Lamioideae tribe North America, such as Warnockia scutellarioides and the Brazoria sp, all native to Texas, but most related plants in this tribe, such as Ballota nigra, Chaiturus marrubiastrum, and Galeopsis sp., and Leonurus sp., are introduced.