Plant Identification Database:
Compositae (Daisy)
Abrosieae [Ragweed]
Order: Asterales; Class: Dicotyledonae

The plant data on this site are a record of Bob Ronnow's field observations
which vary in accuracy and change with experience. For accurate and complete
information please use the links provided for each plant species and family.

Plant Families
Glossary of Botanical Terms

CLASSIFICATION
LEAVES
FLOWERS
FRUIT
STEM
ECOLOGY
CLASSIFICATION
Common Name (Image)
Scientific Name (Notes)
Genus
LV: Attachment
LV: Shape
LV: Edge
LV: Apex/Base
LV: Size/Surface
FL: Petals/Sepals
FL: Color
FL: Arrangement
FL: Size/Season
FL: Stamen/Pistil/Ovary
FR: Type
FR: Color
FR: Size/Season
ST: Type/Size/Growth
ST: Surface/Color
ST: Buds/Roots
EC: Edible
EC: Habitat
EC: Observations
Common Name (Image)
Scientific Name (Notes)
Other Names
Compositae/Abrosieae: LV: u. opposite; FL: 7+ parts, head, disk only, minute florets, indeterminate, imbricate bracts, ovary inferior; FR: achene; ST: u. herb/shrub; EC:
u. opposite 7+ florets, disk only, White; Yellow; Orange; Red; Pink; Blue; Violet; Green; Brown head, indeterminate, imbricate bracts minute florets O: inferior achene u. herb/shrub Compositae/Abrosieae: LV: u. opposite; FL: 7+ parts, head, disk only, minute florets, indeterminate, imbricate bracts, ovary inferior; FR: achene; ST: u. herb/shrub; EC:
Canyon ragweed Ambrosia ambrosioides Ambrosia Petiole short (<1/2 leaf length) Lanceolate Serrate (coarsely) Scabrous; Pubescent Green Raceme (spike-like, nodding), Axillary Purple Shrub, >1' Desert upland AZ Canyon ragweed Ambrosia ambrosioides
Common ragweed Ambrosia artemisiifolia Ambrosia Petiole Ovate, Dissected Toothed (irregular serration) A: Acute >1" Green/Brown Raceme, Axillary, Terminal <1", Summer; Fall Herb, >1', Erect Green Waste places; Roadside Common ragweed Ambrosia artemisiifolia
Triangle-leaf bursage, rabbitbush, burrobush Ambrosia deltoidea Ambrosia Petiole Deltoid, Simple Serrate A: Acute, B: Truncate >1", Tomentose, Gray-green Green/Brown Shrub Desert AZ Triangle-leaf bursage, rabbitbush, burrobush Ambrosia deltoidea
White bursage Ambrosia dumosa Ambrosia Lanceolate, Parted >1", Tomentose, Gray Indstinguishable Green/Brown Spike, Terminal <1", Spring; Summer; Fall dry burr Shrub, >1' Tomentose, Gray AZ White bursage Ambrosia dumosa
Marsh elder Iva frutescens Iva Salt marsh Marsh elder Iva frutescens
Cocklebur Xanthium strumarium Xanthium Lobed, orbicular B: cordate 6" spiny burr Clotbur Xanthium strumarium rough cocklebur,clotbur, common cocklebur, large cocklebur, woolgarie bur, Marula Matangi, ghagra shak
Sea burdock; Beach clotbur Xanthium echinatum Xanthium alternate, petiole (1X leaf) broadly ovate, somewhat lobed, coarsely toothed B: cordate >3", scabrous green burr, ovoid, bristly, beaked, axillary <1", fall purplish, scabrous Coastal Cape Cod Sea burdock; Beach clotbur Xanthium echinatum
Common Name (Image)
Scientific Name (Notes)
Genus
LV: Attachment
LV: Shape
LV: Edge
LV: Apex/Base
LV: Size/Surface
FL: Petals/Sepals
FL: Color
FL: Arrangement
FL: Size/Season
FL: Stamen/Pistil/Ovary
FR: Type
FR: Color
FR: Size/Season
ST: Type/Size/Growth
ST: Surface/Color
ST: Buds/Roots
EC: Edible
EC: Habitat
EC: Observations
Common Name (Image)
Scientific Name (Notes)
Other Names
CLASSIFICATION
LEAVES
FLOWERS
FRUIT
STEM
ECOLOGY
CLASSIFICATION