Euphorbia corollata (Flowering Spurge)
Also known as: | |
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Genus: | Euphorbia |
Family: | Euphorbiaceae (Spurge) |
Life cycle: | perennial |
Origin: | native |
Habitat: | part shade, sun; dry prairies, open woods, roadsides |
Bloom season: | June - September |
Plant height: | 12 to 40 inches |
Wetland Indicator Status: | none |
MN county distribution (click map to enlarge): | |
National distribution (click map to enlarge): |
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Detailed Information
Flower:
Branching clusters of stalked flowers at the top of the plant. Clusters can be loose and airy or denser and more flat topped. Female flowers are ¼ to 3/8-inch across and have 5 white petal-like bracts with a spot of green at the base. In the center is a ring of green to yellowish glands surrounding the green ovary with a 3-parted style at the top. Male flowers have yellow stamens and are inconspicuous. At the base of branches is a pair of leafy bracts.
Leaves:
Leaves are to 3 inches long and ½ inch wide, generally elliptical, rounded at both ends with little or no stalk. Color is a bit blue-green. Attachment is alternate on the lower stem, but opposite or whorled at the base of branches and the flowering branches. Stems are light green, mostly hairless, usually unbranched in the lower stem.
Fruit:
Fruit is a 3-sectioned capsule about 1/8 inch long on a short stalk. Each section is globular and contains a single seed.
Seeds are oval, white to light gray, 2.5 to 2.8 mm long, with a fine to coarse texture of shallow depressions.
Notes:
Flowering Spurge is poisonous. Its sap can cause skin irritations. It is easy to ID as nothing else looks quite like it, especially when fruits are present. There are 2 varieties, though they are not universally recognized; var. corollata is found in the eastern half of North America, including Minnesota.
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More photos
- Flowering Spurge plant, loosely clustered
- Flowering Spurge plant, more densely clustered
- more plants
- more flowers
Photos by K. Chayka taken in Ramsey County. Other photos courtesy Peter M. Dziuk.
Comments
Have you seen this plant in Minnesota, or have any other comments about it?
on: 2010-08-21 15:58:18
Blooming July-August 2010 near 45th & Granada entrance to the Oakdale Nature Preserve.
on: 2015-07-08 09:19:33
Just a few plants, in the woods along a bike trail. So pretty!
on: 2015-08-02 18:48:44
I saw flowering spurge in the prairie planting at the Minnesota Landscape Arboretum. It makes a great garden plant, stiff with lovely structure. It should be grown much more, but it's probably hard to find in garden centers.
on: 2015-09-07 10:39:17
Wild River State Park has some wonderful populations. I help with seed procurement and spreading, and since I got my search pattern tuned I see more and more of this plant along bike trails and rail lines. There's even some right along 61and 97 here in Forest Lake.
on: 2017-07-23 21:17:50
This flower is quite unique...have seen it other years, but it's been awhile...didn't know it was poisonous...always enjoy it.
on: 2018-08-05 17:17:39
Seen today near the railroad trestle on Elmer Anderson Trail near Lake Johanna, both side of the trail.
on: 2018-10-30 13:39:23
Roadside remnant colony, definitely not a planting, north of Buffalo, MN on hwy 25 in gravelly sandy soils. Surrounded by smooth brome with hoary vervain near by.
on: 2022-06-18 21:37:21
A few plants flowering along the sandy path leading to the buffalo viewing gazebo thing Cedar Creek Research Area.
on: 2023-07-20 12:15:51
Found a small number of plants growing in a gravel road ditch in full sun. Just north of Rochester in the Lake Zumbro area
on: 2023-07-23 07:55:53
Sizeable colony in a road ditch west of Dennison