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Ambrosia confertiflora (Weakleaf bur ragweed)
Leander, Bruce

Ambrosia confertiflora

Ambrosia confertiflora DC.

Weakleaf bur ragweed

Asteraceae (Aster Family)

Synonym(s): Franseria confertiflora, Franseria strigulosa, Gaertneria tenuifolia

USDA Symbol: AMCO3

USDA Native Status: L48 (N), PR (N)


Plant Characteristics

Duration: Perennial
Habit: Herb
Leaf Arrangement: Alternate
Leaf Margin: Entire
Leaf Base: Cuneate , Truncate
Fruit Type: Achene
Size Class: 3-6 ft.

Bloom Information

Bloom Time: Jun , Jul , Aug , Sep , Oct , Nov


USA: AZ , CA , CO , KS , NM , OK , TN , TX , UT

Wildflower Center Seed Bank

LBJWC-PM-20 Collected 2010-10-28 in Brewster County by Lady Bird Johnson Wildflower Center

Additional resources

USDA: Find Ambrosia confertiflora in USDA Plants
FNA: Find Ambrosia confertiflora in the Flora of North America (if available)
Google: Search Google for Ambrosia confertiflora


Record Last Modified: 2010-03-15
Research By: DEW

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