Illinois Natural History Survey - University of Illinois

Artemisia biennis
Biennial wormwood, Biennial sagewort
Taxonomy

Synonyms:

Subspecific taxa:

Classification:

Other taxonomic & nomenclature sources: USDA Plants;  ITIS;  The Plant List;  IPNI

Species Distribution
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More about map & occurrence records

County Map Legend
Absent:
Not known from county
Medium confidence:
Medium or unknown confidence;
often old records or unverifiable observations
Medium-high confidence:
Often observations by expert botanists
High confidence:
Often vouchered herbarium records
Planted / introduced:
Native species introduced outside historic range,
or only in planted locations within county (e.g., restorations)
Historic / extirpated:
Only historic records for the species; likely extirpated
(Note that this category is not yet functional)

North American distribution maps for this species: FLNA;  USDA Plants;  BONAP;  BISON

Collections, Observations & Flowering by Month [?]

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F
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M
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A
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M
0
J
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J
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A
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O
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N
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Collections & Observations by Decade [?]

Species Status

Status/Listing: No Information

Notes:

Origin: North America

Species Description

General: Dicot-herb, biennial, annual

Roots:

Shoots: alternate leaf arrangment; simple leaf type; serrate, lobed (pinnately), parted (pinnately) leaf margin; Pinnate leaf venation; awl-shaped, linear, oblong, lanceolate leaf shape

Inflorescence: head

Flowers: perfect, unisexual, monoecious; complete, incomplete, regular; epigynous ovary position

Fruit: achene

Physiology: autotrophic; C3 C02 fixation

Reproduction: sexual

Ecology & Natural History

Habitat: Species is distributed in gravel bars of streams, along railroads, an uncommon weed in waste ground, and flood plains.

ILPIN Notes: Flowers are all fertile; the outer are pistillate. Pammel, L.H. 1911. A Manual of Poisonous Plants. Torch Press. Cedar Rapids, Iowa. 977 pp. In northwestern USA and other places where locally abundant, it may be a cause of hayfever. It is anthelmintic. Leaves are green; glabrous, greatly dissected (50+ divisions per leaf); nearly odorless when bruised. Species was introduced from northwest U.S.A.

Functional Relationships:

  • Pollinators: wind
  • Dispersal:
  • Mycorrhizae:
  • N2 fixation:

Human Relationships:

  • Edibility [?] :
  • Showy Flowers:

Wildlife and Livestock Information:

  • Food Value:
  • Cover Value:

Coefficient of Conservatism (C-value) [?] :

  • Entire State:
  • Chicago Area:

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