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NC Native Plant Society:
Plant Details

Enemion biternatum [= Isopyrum biternatum]

False Rue-anemone, Atlantic Isopyrum

Scientific Name:

Enemion biternatum [= Isopyrum biternatum]

Genus:

Enemion

Species Epithet:

biternatum

Common Name:

False Rue-anemone, Atlantic Isopyrum

Plant Type

Herb/Wildflower

Life Cycle

Perennial

Plant Family

Ranunculaceae (Buttercup Family)

Native/Alien:

NC Native

Size:

0-1 ft.

Bloom Color(s):

White

Light:

Part Shade - 2 to 6 hours of sun per day

Soil Moisture:

Moist

Bloom Time:

March, April

Growing Area:

Piedmont, Coastal Plain

Habitat Description:

Rich forests, either on natural levees with very nutrient rich sediments or on slopes with underlying mafic rocks. Rare in the NC Coastal Plain and Piedmont.

Leaf Arrangement:

Alternate

Leaf Retention:

Deciduous

Leaf Type:

Leaves veined, not needle-like or scale-like

Leaf Form:

Compound

Life Cycle:

Perennial

Wildlife Value:

Has some wildlife value

Landscape Value:

Suitable for home landscapes

State Rank:

S2: Imperiled (*Key)

Global Rank:

G5 - Secure (*Key)

State Status:

SC-V: Special Concern: Vulnerable (*Key)

Notes:

Sometimes confused with Rue-anemone, Thalictrum thalictroides, but Rue-anemone usually has from 5 to 10 petaloid sepals, while False Rue-anemone has no more than 5 petaloid sepals.

Plants

On a large rock out crop at Raven Rock State Park, 28 Mar 08

image

A better look at the foliage

image

A delicate, small spring ephemeral which typically is found in large patches. It has 5 white sepals which distinguishes it from the somewhat similar species- Rue Anemone (Thalictrum thalictroides) - whose flowers have 6-8 white, pink-tinged sepals.

Willie Duke's Bluff, Durham County, NC

The Scientific Name is Enemion biternatum [= Isopyrum biternatum]. You will likely hear them called False Rue-anemone, Atlantic Isopyrum. This picture shows the A delicate, small spring ephemeral which typically is found in large patches. It has 5 white sepals which distinguishes it from the somewhat similar species- Rue Anemone (<em>Thalictrum thalictroides</em>) - whose flowers have 6-8 white, pink-tinged sepals. of Enemion biternatum [= Isopyrum biternatum]

Bettina Darveaux

The compound leaves have variously deeply lobed leaflets, some looking like mittens. The similar Rue Anemone (Thalictrum thalictroides) has leaflets that are more rounded and only slightly lobed.

Willie Duke's Bluff, Durham County, NC

The Scientific Name is Enemion biternatum [= Isopyrum biternatum]. You will likely hear them called False Rue-anemone, Atlantic Isopyrum. This picture shows the The compound leaves have variously deeply lobed leaflets, some looking like mittens. The similar Rue Anemone (<em>Thalictrum thalictroides</em>) has leaflets that are more rounded and only slightly lobed. of Enemion biternatum [= Isopyrum biternatum]

Bettina Darveaux

Links:

USDA PLANTS Database Record



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