Characteristics
Dicots
Ambrosia bidentata Michx.
Lance Leaf Ragweed
forb
3
**
Native
TN[SNR] KY[SNA] (State Rank)
G5 (Global Rank)
Anther Type
Basifixed
Armaments
No
Base Flower Color
White; Yellow
Carpel Number/Pistil
1; 2
Duration
Annual
Fruit Complexity
Simple
Fruit Dehiscence
No
Fruit Type
Cypsela
Fruit Wet/Dry
Dry
General Ecology
Terrestrial
Growth Habit
forb
Inflorescence Position
terminal
Inflorescence Types
head; spiciform
Leaf Arrangement
opposite
Leaf Complexity
simple
Leaf Dissection
0
Leaf Duration
deciduous
Leaf Fragrance
No
Leaf Petiole Type
petiolate
Leaf Rank
decussate
Leaf Type
broadleaf
Leaf Venation
pinnate
Leaflet Margins
entire; lobed
Leaflet Number
0
Moisture Requirements
Xeric; Mesic
Natural Area Presence
GILES; RCSP
Ovary Position
Inferior
Overall Flower Symmetry
Actinomorphic
Ovules per Carpel
1
Parent Rock
Calcareous; Limestone
Perianth Present
Yes
Petal Fusion
Yes
Petal Number
5
Pistil Complexity
Simple
Pistil Number
1
Placentation Type
Basal
Soil Composition
Mineral
Soil pH
Alkaline
Stamen Number
5
Unconsolidated Rock
Yes
Woody Herbaceous
Herbaceous
Classification
Species Distribution Map
This species has been reported in the counties highlighted in the interactive distribution map below. Click on a county to display its name.
Click the question mark icon () to view additional information about the ecoregions shown. In the map legend, there are links to toggle the visibility of the ecoregions and/or their labels. In addition, clicking on an ecoregion name will highlight that region on the map.
Ecoregions
Southeastern Plains
-
Blackland Prarie
Blue Ridge Mountains
Ridge and Valley
Cumberland Plateau
Cumberland Mountains
Allegheny Plateau
Interior Plateau
-
Bluegrass Region
Nashville Basin
Pennyroyal Karst Plain
Western Highland Rim
Eastern Highland Rim
Interior River Valleys and Hills
-
Shawnee / Caseyville Hills
Mississippi Alluvial Plain
Mississippi Valley Loess Plains
Synonyms
Specimens and Distribution
Click on an Accession Number to view additional details about the specimen.
Range of years during which specimens were collected:
Plant Photos
