| Author | (Walter) Kuntze | |
| Distribution | Outer Banks and barrier Islands, and the southern outer Coastal Plain. Ranges north to the Cape Hatteras area and to Craven County inland. Apparently native to the Carolinas, but some populations are likely adventive through disturbance or escapes from cultivation.
Mostly maritime, NC to southern FL, TX, NM, AZ, and CA. | |
| Abundance | Uncommon. However, plants may be locally abundant, especially in disturbed places. | |
| Habitat | Dry roadsides through maritime forests, open roadsides through brackish marshes and dunes. Many or most sites might not be considered as "natural" occurrences. | |
| Phenology | Flowering and fruiting July-October. | |
| Identification | St. Augustine Grass is a patch- or carpet-former, from horizontal surficial stolons. The stems root at the nodes and send up a rather erect, leafy, flowering stalk up to a foot tall. The leaves have a distinct constriction at the junction with the sheath. The inflorescences arise from leaf axils and are spike-like, with spikelets appressed to the broad rachis. | |
| Taxonomic Comments | None
| |
| Other Common Name(s) | Buffalo Grass (mostly in other countries), Carpet-grass | |
| State Rank | S2 [S3] | |
| Global Rank | G5 | |
| State Status | | |
| US Status | | |
| USACE-agcp | FAC link |
| USACE-emp | FAC link |
