Native Plants

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Leander, Bruce

Ambrosia confertiflora

Ambrosia confertiflora DC.

Weakleaf Bur Ragweed, Weak Leaved Burweed, Slimleaf Bursage

Asteraceae (Aster Family)

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

USDA Symbol: AMCO3

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

From the Image Gallery

1 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
Leaf Arrangement: Alternate
Leaf Margin: Entire
Leaf Base: Cuneate , Truncate
Size Notes: Up to about 5 feet tall.
Fruit: Fruit is a cypsela (pl. cypselae). Though technically incorrect, the fruit is often referred to as an achene.

Bloom Information

Bloom Color: White , Purple
Bloom Time: May , Jun , Jul , Aug , Sep , Oct , Nov , Dec
Bloom Notes: Whitish to purplish.

Distribution

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

Wildflower Center Seed Bank

LBJWC-PM-20 Collected 2006-10-27 in Brewster County by Lady Bird Johnson Wildflower Center

1 collection(s) available in the Wildflower Center Seed Bank

Web Reference

Webref 3 - Flora of North America (2014) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.

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

Metadata

Record Modified: 2022-09-28
Research By: DEW

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