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Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

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Halophila johnsonii

Halophila johnsonii Eiseman

Johnson's Seagrass

Hydrocharitaceae (Tape-grass family)

Synonym(s):

USDA Symbol: HAJO

USDA Native Status: L48 (N)

 

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Plant Characteristics

Duration: Perennial
Habit: Herb
Size Notes: Erect stems absent, submersed leaves attached to rhizome, flowers submersed.

Bloom Information

Bloom Color: Green
Bloom Time: Mar , Apr , May , Jun , Jul , Aug
Bloom Notes: Petals absent, submersed flowers inconspicuous.

Distribution

USA: FL
Native Habitat: Sandy substrates of marine waters.

U.S. Fish & Wildlife Service Threatened & Endangered Status

USFWS Species Profile: Q3AL
Status: Threatened
Historic Range: U.S.A. (FL)
Critical Habitat: 226.213
Special Rules: N/A
This information is derived from the U.S. Fish & Wildlife Serrvice Environmental Conservation Online System.

National Wetland Indicator Status

Region:AGCPAKAWCBEMPGPHIMWNCNEWMVE
Status: OBL
This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

Web Reference

Webref 3 - Flora of North America (2014) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Halophila johnsonii in USDA Plants
FNA: Find Halophila johnsonii in the Flora of North America (if available)
Google: Search Google for Halophila johnsonii

Metadata

Record Modified: 2020-11-02
Research By: CBR

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