• Photo by: Shirley Denton, Suncoast Chapter FNPS
  • Photo by: Shirley Denton, Suncoast Chapter FNPS
  • Photo by: Shirley Denton, Suncoast Chapter FNPS
  • Photo by: Mark Hutchinson, Hernando Chapter, FNPS

Andropogon glomeratus

bushy bluestem

Nomenclature

Common Name:

bushy bluestem

Synonym(s):

Andropogon glomeratus var. glomeratus, Andropogon glomeratus var. hirsuitior, Andropogon glomeratus var. pumilus, Andropogon glomeratus var. glaucopsis, Andropogon glaucopsis

Genus species:

Andropogon glomeratus

Family:

Poaceae (Gramineae)

Plant Specifics

Form:

grass

Size:

3-5 (6) ft tall by 1-3 ft wide

Life Span:

Long-lived perennial

Flower Color:

green

Fruit Color:

silvery green turning orange

Phenology:

deciduous

Noted For:

Fall Color

Landscaping

Recommended Uses:

Background plant in casual landscape. Fruit stalks start out silvery green and transition to and orangy brown. Retains the old stalks through the winter.

Considerations:

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Availability:

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Propagation:

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Light:

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Moisture Tolerance:

Always Flooded---------------------------------Extremely Dry

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Stays wet -to- Not wet but not extremely dry

Salt Water Flooding Tolerance:

Unknown

Salt Spray/Salty Soil Tolerance:

Low/no tolerance of salty wind or direct salt spray

Soil or Other Substrate:

Sand, Loam, Organic

Soil pH:

acidic to neutral

Suitable to Grow In:

8A,8B,9A

Ecology

Wildlife:

Caterpillars, Birds, Mammals

Possible larval host plant for Delaware skipper ( Anatrytone logan ), Georgia satyr ( Neonympha areolata ), neamathla skipper ( Nastra neamathla ), swarthy skipper ( Nastra lherminier ) and twin-spot skipper ( Oligoria maculata ) butterflies.

Seeds eaten by various small birds and other wildlife. 

Native Habitats:

Flatwoods, marshes

Comments:

Ethnobotany:

General Comments:

There are several different subspecies of A. glomeratus with different affinities for upland and wetland conditions.




  • A. glomeratus var. glaucopsis is notable as it has a blue-purple coloration and is almost always found in wetlands.  It is sometimes considered to be a separate species

  • A. glomeratus var. pumilus has the widest distribution in Florida and based on the relative numbers of herbarium specimens, likely the most common.

  • A. glomeratus var. hirsuitior is widespread but probably less common than var. pumilis.

  • A. glomeratus var. glomeratus has no documented herbarium specimens in the southern half of the peninsula.



Uses of the latter 3 varieties should be similar as their habitats are similar.