Ambrosia artemisiifolia L.
Annual Ragweed, Short Ragweed
Asteraceae (Aster Family)USDA Symbol: AMAR2
USDA Native Status: L48 (NI), HI (I), CAN (N)
Specimen & Label Data
Short Ragweed, Common Ragweed, Roman Wormwood
Location: 30 m S of wooden bridge, E side of ditch--Oakwell Farms.
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.
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