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Sporobolus

 

Sporobolus jacquemontii  Kunth

Synonym:  S. indicus var. pyramidalis

Natural range:  North America

Habitat:  Variable disturbed open sites, usually coastal

Florida status:  Native?

Recognition:  Leaf blades 2-4 mm wide, soon becoming involute.  Spikes crowded.  Spikelet 1.3-1.8 mm. (vs. 2-2.7 mm for S. indicus).  Upper glume less than 1/2 as long as the florets (vs. usually  1/2 to 2/3 as long for S. indicus).

Note from Flora of North America:  "S. jacquemontiiis sometimes included in S. indicus (Baaijens and Veldkamp 1991) or S. pyramidalis P. Beauv. (Laegaard and Peterson 2001), but is retained here pending more definitive study."