Artemisia campestris (Field Sagewort)
|Also known as:||Tall Wormwood|
|Life cycle:||biennial, short-lived perennial|
|Habitat:||sun; dry sandy soil; fields, prairies|
|Bloom season:||July - September|
|Plant height:||18 to 40 inches|
|Wetland Indicator Status:||GP: UPL MW: UPL NCNE: UPL|
|MN county distribution (click map to enlarge):|
|National distribution (click map to enlarge):|
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Leaves and stem:
Leaves towards the base of the plant are tightly packed, up to 6 inches long, deeply divided into 3 or more long, narrow lobes, are sometimes hairy, and frequently wither away by flowering time (deciduous). Upper leaves are more sparse, smaller and may be undivided. The stem is ridged and is green or dark red; 1 to a few stems may emerge from the base and typically branch in the upper plant, the branches erect to ascending.
There are 3 recognized subspecies of A. campestris, with subsp. caudata found in Minnesota and much of North America east of the Rockies. Most similar is Wild Tarragon (Artemisia dracunculus), which has similar leaves but flower clusters that are more open and less erect. Tarragon also is typically strongly scented, where Field Sagewort has little to no scent.
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Photos by K. Chayka taken in Ramsey County. Photos courtesy Peter M. Dziuk taken in Ramsey and Anoka counties.
Have you seen this plant in Minnesota, or have any other comments about it?