Characteristics
Dicots
Asclepias verticillata L.
Whorled Milkweed
forb
8
**
Native
AGCP (FACU), EMP (FACU) (NWPL)
TN[SNR] KY[S4?] (State Rank)
G5 (Global Rank)
Anther Type
Pollinium
Armaments
No
Base Flower Color
White
Carpel Number/Pistil
2
Duration
Perennial
Fruit Complexity
Multiple
Fruit Dehiscence
Yes
Fruit Type
Follicle
Fruit Wet/Dry
Dry
General Ecology
Terrestrial
Growth Habit
forb
Inflorescence Position
terminal
Inflorescence Types
umbel
Leaf Arrangement
opposite; whorled
Leaf Complexity
simple
Leaf Dissection
0
Leaf Duration
deciduous
Leaf Fragrance
No
Leaf Petiole Type
sessile
Leaf Type
needle-like
Leaf Venation
pinnate
Leaflet Margins
entire
Leaflet Number
0
Moisture Requirements
Xeric; Mesic
Natural Area Presence
ObedWSR; PK; LULA; LRC; LGS; GILES; GRSM; WOLF; TRG; BE
Ovary Position
Superior
Overall Flower Symmetry
Actinomorphic
Ovules per Carpel
>12
Parent Rock
Calcareous; Chert; Limestone
Perianth Present
Yes
Petal Fusion
Yes
Petal Number
5
Pistil Complexity
Compound
Pistil Number
1
Placentation Type
Marginal
Sepal Fusion
Yes
Sepal Number
5
Soil Composition
Mineral
Soil pH
Alkaline; Circumneutral
Stamen Number
5
Unconsolidated Rock
Yes
Unconsolidated Size Class
Sand
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
