Early Meadow Rue

More info for the terms: dioecious, forb

early meadow-rue
quicksilver-weed
dioecious meadowrue


TAXONOMY:
The scientific name for early meadow-rue is Thalictrum dioicum L.
It has three recognized varieties in Canada:

Thalictrum dioicum var. adiantinum Greene,
Thalictrum dioicum var. huronense Greene
Thalictrum dioicum var. langfordii Greene [19].

In Canada and Minnesota, this species has been confused with
Thalictrum venulosum Trel., which is a separate and valid species [12].


LIFE FORM:
Forb

FEDERAL LEGAL STATUS:
No special status

OTHER STATUS:
NO-ENTRY





DISTRIBUTION AND OCCURRENCE
SPECIES: Thalictrum dioicum
GENERAL DISTRIBUTION:
Early meadow-rue's range extends from south-central Canada south to
Georgia and Alabama. It is distributed eastward from the Mississippi
River to the Atlantic Coast [9,17,20,21].

Early meadow-rue's range extends from south-central Canada south to
Georgia and Alabama. It is distributed eastward from the Mississippi
River to the Atlantic Coast [9,17,20,21].



Distribution of early meadow-rue. Map courtesy of USDA, NRCS. 2018. The PLANTS Database.
National Plant Data Team, Greensboro, NC [2018, June 6] [23].

More info for the term: forest

Early meadow-rue is listed as a dominant in the following classification:

Field guide to forest habitat types of northern Wisconsin - Kotar & others 1988

More info for the term: forb

Forb

More info on this topic.

More info for the term: fruit

With its leaves about half grown, early meadow-rue blooms early in spring
(April or May) throughout its range [9,17,20,21]. It flowers with or
before the expansion of leaves on deciduous trees. Fruit begins to
mature approximately 1 month later (June) [9,17,20,21]. Leaves are
maintained throughout summer. In fall, leaves become senescent, and
there are no living shoots during winter [9,17,20,21].

Caudex, growing points in soil

The scientific name for early meadow-rue is Thalictrum dioicum L.
It has three recognized varieties in Canada:

Thalictrum dioicum var. adiantinum Greene,
Thalictrum dioicum var. huronense Greene
Thalictrum dioicum var. langfordii Greene [19].

In Canada and Minnesota, this species has been confused with
Thalictrum venulosum Trel., which is a separate and valid species [12].