Photo by: John Lampkin, Nature Coast FNPS
Photo by: John Lampkin, Nature Coast FNPS
Photo by: Shirley Denton, Suncoast Chapter FNPS

Nomenclature

Common Name:

blacksenna

Synonym(s):

Seymeria pectinata, Seymeria cassioides

Genus species:

Seymeria spp.

Family:

OROBANCHACEAE

Plant Specifics

Form:

flower

Size:

3-4 ft

Life Span:

Long-lived perennial

Flower Color:

yellow

Fruit Color:

Phenology:

Spring-fall (mostly fall) blooming. Winter dormant.

Noted For:

Landscaping

Recommended Uses:

Retain in semi-natural gardens.

Considerations:

Both species are hemi-parasitic (semi-parasitic) and difficult to grow without appropriate host plants. 

Availability:

Propagation:

Seed. Please be sure to have landowner permission before collecting.

Light:

Moisture Tolerance:

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

Coming Soon!

Somewhat moist, no flooding ---to--- 1Stays wet

Salt Water Flooding Tolerance:

Unknown

Salt Spray/Salty Soil Tolerance:

Low/no tolerance of salty wind or direct salt spray

Soil or Other Substrate:

Soil pH:

Suitable to Grow In:

Ecology

Wildlife:

Pollinators, Caterpillars



  • Larval host for  black buckeye.


  • Attracts insects.






 

Native Habitats:

Open upland woods and disturbed edges.

Natural Range in Florida:

Comments:

Ethnobotany:

General Comments:

They are included here because they are valuable to insects and because they are lovely and good to have in a native garden if you are lucky enough to have them naturally.  



Data on culture has been assumed from where this grows in nature -- it is not typically grown and no reliable data appears to be available.



Can parasatize southern pines leading, in heavy infestations, to loss of vigor.