Geum aleppicum (Yellow Avens)
|Also known as:
|part shade, sun; moist soil; meadows, open woods, thickets, swamps
|June - July
|20 to 40 inches
|Wetland Indicator Status:
|GP: FACU MW: FACW NCNE: FAC
|MN county distribution (click map to enlarge):
|National distribution (click map to enlarge):
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1 to a few flowers are at the end of branching stems at the top of the plant. Individual flowers are about ½ inch across with 5 yellow round to oval petals that may have a dull point or a small notch at the tip. There are numerous yellow-tipped stamens, that turn reddish brown with age, surrounding the greenish center. The 5 sharply pointed green sepals under the flower eventually bend back away from the flower.
Leaves and stem:
There are a few to several long stemmed compound basal leaves with a large leaflet at the end and 2 to 6 pairs of small leaflets along the stem. Leaflets are somewhat variable in shape, from wedge to egg-shaped and may lobed in 2 or 3 parts with the lobes broadest at the tip end.
The compound stem leaves are alternately attached; the end leaflet may be divided into 2 or 3 pointed lobes. The end leaflet is to 4½ inches long and 3½ inches wide. There are 2 leaf-like appendages (stipules) attached to the main stem at the leaf joint. Stem leaves near the base of the plant have 1 or more additional pairs of smaller leaflets. All leaves are coarsely toothed and bristly hairy. The main stem is covered in stiff hairs.
The flowers, stem leaves and stipules of Yellow Avens are very much the same as Large-leaf Avens (Geum macrophyllum). The easiest way to tell them apart is by the basal leaves; the latter has a big rounded end leaflet. While varieties of G. aleppicum are not widely accepted (and subsequently documentation on the vars is poor), the DNR lists var. strictum present in Minnesota.
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Photos by K. Chayka taken at Long Lake and Vadnais/Snail Lake Regional Parks, Ramsey County.
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