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Digital Herbaria

Ambrosia artemisiifolia

Ambrosia artemisiifolia L.

Annual ragweed, Short ragweed

Asteraceae (Aster Family)

USDA Symbol: AMAR2
USDA Native Status: L48 (NI), HI (I), CAN (N)







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Specimen & Label Data

Ambrosia artemisifolia

Short Ragweed, Common Ragweed, Roman Wormwood

Asteraceae

Location: 30 m S of wooden bridge, E side of ditch--Oakwell Farms.
Latitude: 0.000000

Habitat: Open sun; level, well drained, alkaline, alluvial soil. Nominal moisture.

Description: Taprooted annual, erect, stalk to 75 cm tall; much branched in upper half. Leaves opposite below, alternate above; petioled; mostly pinnatified or bipinnatified; lobes lanceolate, directed forward; upper ones less divided. Staminate heads raceform; pistillate heads in few flowered clusters below.

County: Bexar
Collector: Harry Cliffe
Collection Date: Oct 4, 1987
Specimen number: 329

Herbarium Owner: NPSOT
Herbarium ID: 0547
Accession Date: Sep 28, 1993
Accession Number: 41

Annotations: MCXRB

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