Asclepias hirtella

Characteristics
Dicots
Apocynaceae
Asclepias
Asclepias hirtella (Pennell) Woodson
Barrens Milkweed; Prairie Milkweed; Green Milkweed
forb
7
**
Native TN[S1] KY[S2] (State Rank) G5 (Global Rank)
Anther Type
Pollinium
Armaments
No
Base Flower Color
Green; 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
axillary
Inflorescence Types
umbel
Leaf Arrangement
alternate; opposite; subopposite
Leaf Complexity
simple
Leaf Dissection
0
Leaf Duration
deciduous
Leaf Fragrance
No
Leaf Petiole Type
subpetiolate; sessile
Leaf Type
broadleaf
Leaf Venation
pinnate
Leaflet Margins
entire
Leaflet Number
0
Moisture Requirements
Xeric; Mesic; Hydric
Natural Area Presence
BE
Ovary Position
Superior
Overall Flower Symmetry
Actinomorphic
Ovules per Carpel
>12
Parent Rock
Calcareous; Limestone
Perianth Present
Yes
Petal Fusion
Yes
Pistil Complexity
Compound
Pistil Number
1
Placentation Type
Marginal
Sepal Fusion
Yes
Sepal Number
5
Soil Composition
Mineral
Soil pH
Alkaline
Stamen Number
5
Unconsolidated Rock
Yes
Woody Herbaceous
Herbaceous
View details of Herbarium specimens
** Not applicable or data not available.
Classification
Gentianales
Asclepias
Asclepias hirtella (Pennell) Woodson - Barrens Milkweed; Prairie Milkweed; Green Milkweed
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
Asclepias hirtella - 13
Asclepias hirtella - Dwayne Estes View Full Size
Asclepias hirtella - 13
Asclepias hirtella - Dwayne Estes View Full Size
Asclepias hirtella - 13
Asclepias hirtella - Dwayne Estes View Full Size
Asclepias hirtella - 13
Asclepias hirtella - Dwayne Estes View Full Size
Asclepias hirtella - 13
Asclepias hirtella - Dwayne Estes View Full Size
Asclepias hirtella - 20
Asclepias hirtella - Milo Pyne View Full Size
Asclepias hirtella - 21
Asclepias hirtella - Tara Littlefield View Full Size
Asclepias hirtella - 21
Asclepias hirtella - Tara Littlefield View Full Size
Asclepias hirtella - 19
Asclepias hirtella - Theo Witsell View Full Size
Asclepias hirtella - 19
Asclepias hirtella - Theo Witsell View Full Size
Asclepias hirtella - 19
Asclepias hirtella - Theo Witsell View Full Size
Asclepias hirtella - 19
Asclepias hirtella - Theo Witsell View Full Size