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minnesotawildflowers.info100 pages read on October 24, 2026
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Aethusa cynapium (Fool's Parsley): Minnesota Wildflowers
minnesotawildflowers.info/flower/fools-parsley
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Aethusa cynapium (Fool's Parsley)

Plant Info
Also known as:
Genus:Aethusa
Family:Apiaceae (Carrot)
Life cycle:annual, biennial
Origin:Europe
Status:

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## Share

## *Aethusa cynapium* (Fool's Parsley)

| Also known as: |  |
| --- | --- |
| Genus: | [Aethusa](https://minnesotawildflowers.info/search?scientific_name=Aethusa&wh) |
| Family: | [Apiaceae (Carrot)](https://minnesotawildflowers.info/search?family=Apiaceae&wh) |
| Life cycle: | annual, biennial |
| Origin: | Europe |
| Status: | Weedy |
| Habitat: | part shade, sun; |
| Bloom season: | July - August |
| Plant height: | 1 to 2 feet |
| [Wetland Indicator Status](https://minnesotawildflowers.info/page/glossary#wis): | none |
| MN county distribution (click map to enlarge): | [![Minnesota county distribution map](https://minnesotawildflowers.info/udata/r9ndp23q/maps/aetcyn-t.png)](https://minnesotawildflowers.info/udata/r9ndp23q/maps/aetcyn.png) |
| National distribution (click map to enlarge): | [![National distribution map](https://minnesotawildflowers.info/udata/r9ndp23q/bonap/aetcyn-t.png)](https://minnesotawildflowers.info/includes/modalfiles/bonap.php?s=aetcyn) |

Pick an image for a larger view. See the [glossary](https://minnesotawildflowers.info/page/glossary) for icon descriptions.

### Detailed Information

#### Flower: ![Flower shape: 5-petals](https://minnesotawildflowers.info/includes/images/icon.png) ![Cluster type: flat](https://minnesotawildflowers.info/includes/images/icon.png)

[![photo of flowers](https://minnesotawildflowers.info/udata/r9ndp23q/pd/aethusa-cynapium-072217-37-t.jpg)](https://minnesotawildflowers.info/udata/r9ndp23q/pd/aethusa-cynapium-072217-37.jpg) Several flat clusters (umbels) at the tips of branching stems and arising from upper leaf axils. Umbels are 1 to 2 inches across, made up of 10 to 20 smaller clusters (umbellets), each with 20+ 1/8-inch white flowers. Individual flowers have 5 petals, notched at the tip, 5 stamens and a greenish white center. Flowers around the perimeter of an umbellet typically have enlarged petals on the outer edge.

[![photo of bracts](https://minnesotawildflowers.info/udata/r9ndp23q/pd/aethusa-cynapium-072217-29-t.jpg)](https://minnesotawildflowers.info/udata/r9ndp23q/pd/aethusa-cynapium-072217-29.jpg) Around the base of an umbellet are 3 or 4 conspicuous, linear bracts that are hairless, much longer than the flower stalks, and bend down away from the flowers (reflexed). The main umbels lack bracts, though a small leaf resembling a bract may be at the base of the umbel stalk. Flower, umbel and umbellet stalks are ribbed with minute hairs along the ribs.

#### Leaves and stems: ![Leaf attachment: alternate](https://minnesotawildflowers.info/includes/images/icon.png) ![Leaf type: compound](https://minnesotawildflowers.info/includes/images/icon.png) ![Leaf type: lobed](https://minnesotawildflowers.info/includes/images/icon.png)

[![photo of leaves](https://minnesotawildflowers.info/udata/r9ndp23q/pd/aethusa-cynapium-072217-23-t.jpg)](https://minnesotawildflowers.info/udata/r9ndp23q/pd/aethusa-cynapium-072217-23.jpg) Leaves are 2 or 3 times compound, up to 5 inches long and wide, triangular in outline. Leaflets are divided and fern-like, medium to dark green, hairless, and somewhat shiny on the upper surface. Basal and lower leaves are largest and long stalked, becoming smaller and stalkless as they ascend the stem.

[![photo of sheath](https://minnesotawildflowers.info/udata/r9ndp23q/white/aethusa-cynapium-fools-parsley_20170722_151516-t.jpg)](https://minnesotawildflowers.info/udata/r9ndp23q/white/aethusa-cynapium-fools-parsley_20170722_151516.jpg) Stem leaves are sheath-like where the stalk joins the stem, the sheath ribbed and hairless with whitish, membranous edging. Stems are erect, much branched, ribbed, and may have minute hairs along the ribs especially in the upper plant.

#### Fruit: ![Fruit type: seed without plume](https://minnesotawildflowers.info/includes/images/icon.png)

[![photo of developing fruit](https://minnesotawildflowers.info/udata/r9ndp23q/pd/aethusa-cynapium-072217-50-t.jpg)](https://minnesotawildflowers.info/udata/r9ndp23q/pd/aethusa-cynapium-072217-50.jpg) Fruits are broadly egg-shaped, slightly flattened, about 1/8 inch (to 4mm) long, and split into 2 seeds.

[![close-up of developing fruit](https://minnesotawildflowers.info/udata/r9ndp23q/pd/aethusa-cynapium-072217-fruit-4-t.jpg)](https://minnesotawildflowers.info/udata/r9ndp23q/pd/aethusa-cynapium-072217-fruit-4.jpg) Seeds are thick-ribbed and narrowly winged. The remains of the style persists at the tip.

#### Notes:

If you do a web search for Fool's Parsley, you'll get gobs of results praising its medicinal values, notably as a remedy for milk allergies in children as well as a variety of mental conditions. It is, however, quite poisonous. “A Manual of Weeds” by Ada E. Georgia notes “its Greek name means ‘to burn’, which indicates the sort of agony that its victims feel”. Since the leaves look much like the garden variety Italian parsley, the common name seems rather fitting. Fool's Parsley joins the list of non-native carrot introductions that includes Wild Carrot (*Daucus carota*) a.k.a. [Queen Anne's lace](https://minnesotawildflowers.info/flower/queen-annes-lace), [Wild Parsnip](https://minnesotawildflowers.info/flower/wild-parsnip) (*Pastinaca sativa*), [Poison Hemlock](https://minnesotawildflowers.info/flower/poison-hemlock) (*Conium maculatum*), [Caraway](https://minnesotawildflowers.info/flower/caraway) (*Carum carvi*), [Japanese Hedge-parsley](https://minnesotawildflowers.info/flower/japanese-hedge-parsley) (*Torilis japonica*), and [Wild Chervil](https://minnesotawildflowers.info/flower/wild-chervil) (*Anthriscus sylvestris*). More will come, of that we are pretty certain.

The only collection of Fool's Parsley in Minnesota dates back to 1878 in Lake City, Wabasha County. While this may indicate a hardiness issue, it was more recently discovered at the MN Landscape Arboretum, so it might be persisting after all. The resemblance to Queen Anne's Lace and other white carrot species spreading along roadsides across the state is possibly masking its actual distribution here. Fool's Parsley is most easily distinguished by its hairless leaves, sheaths and stems, the 3 or 4 long, drooping, linear bracts at the base of an umbellet, the main umbels lacking bracts, and the hairless, ribbed fruits. The fern-like leaves are probably most similar to [Japanese Hedge-parsley](https://minnesotawildflowers.info/flower/japanese-hedge-parsley), which has stiff appressed hairs on leaves and stems, 2 to a few thread-like bracts at the base of umbels but not the umbellets, and hooked hairs on its fruit.

### Native Plant Nurseries, Restoration and Landscaping Services ↓

[Map of native plant resources in the upper midwest](https://minnesotawildflowers.info/page/native-plant-purveyor-locations)

- [![Shop for native seeds and plants at PrairieMoon.com!](https://minnesotawildflowers.info/includes/aff/partners/prairie-moon-x190.jpg)](http://www.prairiemoon.com/)
- [![Shooting Star Native Seeds - Native Prairie Grass and Wildflower Seeds](https://minnesotawildflowers.info/includes/aff/partners/shooting-star-x190.jpg)](http://www.shootingstarnativeseed.com/)
- [![Morning Sky Greenery - Native Prairie Plants](https://minnesotawildflowers.info/includes/aff/partners/morningskygreenery-x190.jpg)](http://www.morningskygreenery.com/)
- [![Natural Shore Technologies - Using science to improve land and water](https://minnesotawildflowers.info/includes/aff/partners/naturalshore-x190.jpg)](http://www.naturalshore.com/)
- [![Minnesota Native Landscapes - Your Ecological Problem Solvers](https://minnesotawildflowers.info/includes/aff/partners/mnnativelandscapesl-x190.jpg)](http://www.mnnativelandscapes.com/)

### More photos

- [Fool's Parsley plant](https://minnesotawildflowers.info/udata/r9ndp23q/pd/aethusa-cynapium-072217-25.jpg)
- [Fool's Parsley plants](https://minnesotawildflowers.info/udata/r9ndp23q/pd/aethusa-cynapium-072217-53.jpg)
- [more leaves](https://minnesotawildflowers.info/udata/r9ndp23q/pd/aethusa-cynapium-072217-24.jpg)
- [close-up of flowers](https://minnesotawildflowers.info/udata/r9ndp23q/pd/aethusa-cynapium-072217-39.jpg)

Photos courtesy Peter M. Dziuk taken at the Minnesota Landscape Arboretum, Carver County.

### Comments

**Have you seen this plant in Minnesota,** or have any other comments about it?

Posted by: Bruce Baer - Hennepin County
on: 2021-07-01 12:58:31

July 1st, 2021 On the trail between the parking lot at Old Cedar Avenue Bridge and the Hiway 77 bridge. Closer to hiway 77.

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minnesotawildflowers.infoThis site, 100 pages100%None2,906
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mnnicelandscapes.com100 pages72%63%819
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/flower/american-birds-foot-trefoil922No <main>YesNone2,348No <main>
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Aethusa cynapium (Fool's Parsley): Minnesota Wildflowers
minnesotawildflowers.info/flower/fools-parsley

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goal $10000 $6316 donated Share

Aethusa cynapium (Fool's Parsley)

Plant Info
Also known as:
Genus:Aethusa
Family:Apiaceae (Carrot)
Life cycle:annual, biennial
Origin:Europe
Status:
  • Weedy
Habitat:part shade, sun;
Bloom season:July - August
Plant height:1 to 2 feet
Wetland Indicator Status:none
MN county distribution (click map to enlarge):Image: Minnesota county distribution map
National distribution (click map to enlarge):Image: National distribution map

Pick an image for a larger view. See the glossary for icon descriptions.

Detailed Information

Flower: Image: Flower shape: 5-petals Image: Cluster type: flat

Image: [photo of flowers] Several flat clusters (umbels) at the tips of branching stems and arising from upper leaf axils. Umbels are 1 to 2 inches across, made up of 10 to 20 smaller clusters (umbellets), each with 20+ 1/8-inch white flowers. Individual flowers have 5 petals, notched at the tip, 5 stamens and a greenish white center. Flowers around the perimeter of an umbellet typically have enlarged petals on the outer edge.

Image: [photo of bracts] Around the base of an umbellet are 3 or 4 conspicuous, linear bracts that are hairless, much longer than the flower stalks, and bend down away from the flowers (reflexed). The main umbels lack bracts, though a small leaf resembling a bract may be at the base of the umbel stalk. Flower, umbel and umbellet stalks are ribbed with minute hairs along the ribs.

Leaves and stems: Image: Leaf attachment: alternate Image: Leaf type: compound Image: Leaf type: lobed

Image: [photo of leaves] Leaves are 2 or 3 times compound, up to 5 inches long and wide, triangular in outline. Leaflets are divided and fern-like, medium to dark green, hairless, and somewhat shiny on the upper surface. Basal and lower leaves are largest and long stalked, becoming smaller and stalkless as they ascend the stem.

Image: [photo of sheath] Stem leaves are sheath-like where the stalk joins the stem, the sheath ribbed and hairless with whitish, membranous edging. Stems are erect, much branched, ribbed, and may have minute hairs along the ribs especially in the upper plant.

Fruit: Image: Fruit type: seed without plume

Image: [photo of developing fruit] Fruits are broadly egg-shaped, slightly flattened, about 1/8 inch (to 4mm) long, and split into 2 seeds.

Image: [close-up of developing fruit] Seeds are thick-ribbed and narrowly winged. The remains of the style persists at the tip.

Notes:

If you do a web search for Fool's Parsley, you'll get gobs of results praising its medicinal values, notably as a remedy for milk allergies in children as well as a variety of mental conditions. It is, however, quite poisonous. “A Manual of Weeds” by Ada E. Georgia notes “its Greek name means ‘to burn’, which indicates the sort of agony that its victims feel”. Since the leaves look much like the garden variety Italian parsley, the common name seems rather fitting. Fool's Parsley joins the list of non-native carrot introductions that includes Wild Carrot (Daucus carota) a.k.a. Queen Anne's lace, Wild Parsnip (Pastinaca sativa), Poison Hemlock (Conium maculatum), Caraway (Carum carvi), Japanese Hedge-parsley (Torilis japonica), and Wild Chervil (Anthriscus sylvestris). More will come, of that we are pretty certain.

The only collection of Fool's Parsley in Minnesota dates back to 1878 in Lake City, Wabasha County. While this may indicate a hardiness issue, it was more recently discovered at the MN Landscape Arboretum, so it might be persisting after all. The resemblance to Queen Anne's Lace and other white carrot species spreading along roadsides across the state is possibly masking its actual distribution here. Fool's Parsley is most easily distinguished by its hairless leaves, sheaths and stems, the 3 or 4 long, drooping, linear bracts at the base of an umbellet, the main umbels lacking bracts, and the hairless, ribbed fruits. The fern-like leaves are probably most similar to Japanese Hedge-parsley, which has stiff appressed hairs on leaves and stems, 2 to a few thread-like bracts at the base of umbels but not the umbellets, and hooked hairs on its fruit.

Native Plant Nurseries, Restoration and Landscaping Services ↓

Map of native plant resources in the upper midwest

  • Image: Shop for native seeds and plants at PrairieMoon.com!
  • Image: Shooting Star Native Seeds - Native Prairie Grass and Wildflower Seeds
  • Image: Morning Sky Greenery - Native Prairie Plants
  • Image: Natural Shore Technologies - Using science to improve land and water
  • Image: Minnesota Native Landscapes - Your Ecological Problem Solvers

More photos

  • Image with no words Fool's Parsley plant
  • Image with no words Fool's Parsley plants
  • Image with no words more leaves
  • Image with no words close-up of flowers

Photos courtesy Peter M. Dziuk taken at the Minnesota Landscape Arboretum, Carver County.

Comments

Have you seen this plant in Minnesota, or have any other comments about it?

Posted by:

Bruce Baer - Hennepin County
on: 2021-07-01 12:58:31

July 1st, 2021 On the trail between the parking lot at Old Cedar Avenue Bridge and the Hiway 77 bridge. Closer to hiway 77.

HomeWhat's BloomingPlants by NameFlowers by ColorTreesShrubsVinesFerns and Fern Allies

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## Share

## *Aethusa cynapium* (Fool's Parsley)

| Also known as: |  |
| --- | --- |
| Genus: | [Aethusa](https://minnesotawildflowers.info/search?scientific_name=Aethusa&wh) |
| Family: | [Apiaceae (Carrot)](https://minnesotawildflowers.info/search?family=Apiaceae&wh) |
| Life cycle: | annual, biennial |
| Origin: | Europe |
| Status: | Weedy |
| Habitat: | part shade, sun; |
| Bloom season: | July - August |
| Plant height: | 1 to 2 feet |
| [Wetland Indicator Status](https://minnesotawildflowers.info/page/glossary#wis): | none |
| MN county distribution (click map to enlarge): | [![Minnesota county distribution map](https://minnesotawildflowers.info/udata/r9ndp23q/maps/aetcyn-t.png)](https://minnesotawildflowers.info/udata/r9ndp23q/maps/aetcyn.png) |
| National distribution (click map to enlarge): | [![National distribution map](https://minnesotawildflowers.info/udata/r9ndp23q/bonap/aetcyn-t.png)](https://minnesotawildflowers.info/includes/modalfiles/bonap.php?s=aetcyn) |

Pick an image for a larger view. See the [glossary](https://minnesotawildflowers.info/page/glossary) for icon descriptions.

### Detailed Information

#### Flower: ![Flower shape: 5-petals](https://minnesotawildflowers.info/includes/images/icon.png) ![Cluster type: flat](https://minnesotawildflowers.info/includes/images/icon.png)

[![photo of flowers](https://minnesotawildflowers.info/udata/r9ndp23q/pd/aethusa-cynapium-072217-37-t.jpg)](https://minnesotawildflowers.info/udata/r9ndp23q/pd/aethusa-cynapium-072217-37.jpg) Several flat clusters (umbels) at the tips of branching stems and arising from upper leaf axils. Umbels are 1 to 2 inches across, made up of 10 to 20 smaller clusters (umbellets), each with 20+ 1/8-inch white flowers. Individual flowers have 5 petals, notched at the tip, 5 stamens and a greenish white center. Flowers around the perimeter of an umbellet typically have enlarged petals on the outer edge.

[![photo of bracts](https://minnesotawildflowers.info/udata/r9ndp23q/pd/aethusa-cynapium-072217-29-t.jpg)](https://minnesotawildflowers.info/udata/r9ndp23q/pd/aethusa-cynapium-072217-29.jpg) Around the base of an umbellet are 3 or 4 conspicuous, linear bracts that are hairless, much longer than the flower stalks, and bend down away from the flowers (reflexed). The main umbels lack bracts, though a small leaf resembling a bract may be at the base of the umbel stalk. Flower, umbel and umbellet stalks are ribbed with minute hairs along the ribs.

#### Leaves and stems: ![Leaf attachment: alternate](https://minnesotawildflowers.info/includes/images/icon.png) ![Leaf type: compound](https://minnesotawildflowers.info/includes/images/icon.png) ![Leaf type: lobed](https://minnesotawildflowers.info/includes/images/icon.png)

[![photo of leaves](https://minnesotawildflowers.info/udata/r9ndp23q/pd/aethusa-cynapium-072217-23-t.jpg)](https://minnesotawildflowers.info/udata/r9ndp23q/pd/aethusa-cynapium-072217-23.jpg) Leaves are 2 or 3 times compound, up to 5 inches long and wide, triangular in outline. Leaflets are divided and fern-like, medium to dark green, hairless, and somewhat shiny on the upper surface. Basal and lower leaves are largest and long stalked, becoming smaller and stalkless as they ascend the stem.

[![photo of sheath](https://minnesotawildflowers.info/udata/r9ndp23q/white/aethusa-cynapium-fools-parsley_20170722_151516-t.jpg)](https://minnesotawildflowers.info/udata/r9ndp23q/white/aethusa-cynapium-fools-parsley_20170722_151516.jpg) Stem leaves are sheath-like where the stalk joins the stem, the sheath ribbed and hairless with whitish, membranous edging. Stems are erect, much branched, ribbed, and may have minute hairs along the ribs especially in the upper plant.

#### Fruit: ![Fruit type: seed without plume](https://minnesotawildflowers.info/includes/images/icon.png)

[![photo of developing fruit](https://minnesotawildflowers.info/udata/r9ndp23q/pd/aethusa-cynapium-072217-50-t.jpg)](https://minnesotawildflowers.info/udata/r9ndp23q/pd/aethusa-cynapium-072217-50.jpg) Fruits are broadly egg-shaped, slightly flattened, about 1/8 inch (to 4mm) long, and split into 2 seeds.

[![close-up of developing fruit](https://minnesotawildflowers.info/udata/r9ndp23q/pd/aethusa-cynapium-072217-fruit-4-t.jpg)](https://minnesotawildflowers.info/udata/r9ndp23q/pd/aethusa-cynapium-072217-fruit-4.jpg) Seeds are thick-ribbed and narrowly winged. The remains of the style persists at the tip.

#### Notes:

If you do a web search for Fool's Parsley, you'll get gobs of results praising its medicinal values, notably as a remedy for milk allergies in children as well as a variety of mental conditions. It is, however, quite poisonous. “A Manual of Weeds” by Ada E. Georgia notes “its Greek name means ‘to burn’, which indicates the sort of agony that its victims feel”. Since the leaves look much like the garden variety Italian parsley, the common name seems rather fitting. Fool's Parsley joins the list of non-native carrot introductions that includes Wild Carrot (*Daucus carota*) a.k.a. [Queen Anne's lace](https://minnesotawildflowers.info/flower/queen-annes-lace), [Wild Parsnip](https://minnesotawildflowers.info/flower/wild-parsnip) (*Pastinaca sativa*), [Poison Hemlock](https://minnesotawildflowers.info/flower/poison-hemlock) (*Conium maculatum*), [Caraway](https://minnesotawildflowers.info/flower/caraway) (*Carum carvi*), [Japanese Hedge-parsley](https://minnesotawildflowers.info/flower/japanese-hedge-parsley) (*Torilis japonica*), and [Wild Chervil](https://minnesotawildflowers.info/flower/wild-chervil) (*Anthriscus sylvestris*). More will come, of that we are pretty certain.

The only collection of Fool's Parsley in Minnesota dates back to 1878 in Lake City, Wabasha County. While this may indicate a hardiness issue, it was more recently discovered at the MN Landscape Arboretum, so it might be persisting after all. The resemblance to Queen Anne's Lace and other white carrot species spreading along roadsides across the state is possibly masking its actual distribution here. Fool's Parsley is most easily distinguished by its hairless leaves, sheaths and stems, the 3 or 4 long, drooping, linear bracts at the base of an umbellet, the main umbels lacking bracts, and the hairless, ribbed fruits. The fern-like leaves are probably most similar to [Japanese Hedge-parsley](https://minnesotawildflowers.info/flower/japanese-hedge-parsley), which has stiff appressed hairs on leaves and stems, 2 to a few thread-like bracts at the base of umbels but not the umbellets, and hooked hairs on its fruit.

### Native Plant Nurseries, Restoration and Landscaping Services ↓

[Map of native plant resources in the upper midwest](https://minnesotawildflowers.info/page/native-plant-purveyor-locations)

- [![Shop for native seeds and plants at PrairieMoon.com!](https://minnesotawildflowers.info/includes/aff/partners/prairie-moon-x190.jpg)](http://www.prairiemoon.com/)
- [![Shooting Star Native Seeds - Native Prairie Grass and Wildflower Seeds](https://minnesotawildflowers.info/includes/aff/partners/shooting-star-x190.jpg)](http://www.shootingstarnativeseed.com/)
- [![Morning Sky Greenery - Native Prairie Plants](https://minnesotawildflowers.info/includes/aff/partners/morningskygreenery-x190.jpg)](http://www.morningskygreenery.com/)
- [![Natural Shore Technologies - Using science to improve land and water](https://minnesotawildflowers.info/includes/aff/partners/naturalshore-x190.jpg)](http://www.naturalshore.com/)
- [![Minnesota Native Landscapes - Your Ecological Problem Solvers](https://minnesotawildflowers.info/includes/aff/partners/mnnativelandscapesl-x190.jpg)](http://www.mnnativelandscapes.com/)

### More photos

- [Fool's Parsley plant](https://minnesotawildflowers.info/udata/r9ndp23q/pd/aethusa-cynapium-072217-25.jpg)
- [Fool's Parsley plants](https://minnesotawildflowers.info/udata/r9ndp23q/pd/aethusa-cynapium-072217-53.jpg)
- [more leaves](https://minnesotawildflowers.info/udata/r9ndp23q/pd/aethusa-cynapium-072217-24.jpg)
- [close-up of flowers](https://minnesotawildflowers.info/udata/r9ndp23q/pd/aethusa-cynapium-072217-39.jpg)

Photos courtesy Peter M. Dziuk taken at the Minnesota Landscape Arboretum, Carver County.

### Comments

**Have you seen this plant in Minnesota,** or have any other comments about it?

Posted by: Bruce Baer - Hennepin County
on: 2021-07-01 12:58:31

July 1st, 2021 On the trail between the parking lot at Old Cedar Avenue Bridge and the Hiway 77 bridge. Closer to hiway 77.

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