Colors

Data mode

Account

Login
Sign up

Copy permalink to share

Paspalidium geminatum (Forsskål) Stapf. Alligator Grass, Paspalidium, Kissimmee Grass. Phen: Jan-Dec. Hab: Deep water of marshes, graminoid-dominated sloughs and swamps (e.g. holes in cypress domes – in sun), and disturbed wet areas including canals. Dist: GA south to FL, west to TX; also in Central and South America; also in Old World tropics. The apparent SC record is based on a mislabeling (K. Bradley, pers.comm., 2020).

Origin/Endemic status: Native

Taxonomy Comments: Two taxa are sometimes distinguished, at specific or varietal rank (see synonymy): "geminatum s.s." with smaller spikelets and glumes and sterile lemma not papery, and "paludivagum" with larger spikelets (2.8-3.0 mm long) and glumes and sterile lemma papery. Additional study is needed.

Other Comments: This taxon is sometimes considered an introduction from the Old World, but its occurrence in undisturbed wetlands remote from extensive human activity suggests that it is native.

Synonymy: = ETx1, FlGr, FNA25, GW1, K3, K4, Meso6, Mex, NcTx, WH3, Crins (1991); = n/a – C; > Panicum geminatum Forssk. – Bah, HC, S, SFla, Tx; > Panicum paludivagum Hitchc. & Chase – HC, RAB, S, SFla, Tx; > Paspalidium geminatum (Forssk.) Stapf var. geminatum – K1, Mo1; > Paspalidium geminatum (Forssk.) Stapf var. paludivagum – K1; > Paspalidium paludivagum (Hitchc. & Chase) Parodi; > Setaria geminata (Forssk.) Veldkamp var. geminata – Webster (1995); > Setaria geminata (Forssk.) Veldkamp var. paludivaga (Hitchc. & Chase) R.D.Webster – Webster (1995)

Show in key(s)

Show parent genus

Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: OBL
  • Eastern Mountains and Piedmont: OBL
  • Great Plains: OBL
  • Midwest: OBL

Heliophily ?: 7

Your browser does not support SVGs

Hover over a shape, letter, icon, or arrow on the map for definition or see the legend.

image of plant© Jake Smith, some rights reserved (CC BY-NC), uploaded by Jake Smith source CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© Jake Smith, some rights reserved (CC BY-NC), uploaded by Jake Smith source CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© Jake Smith, some rights reserved (CC BY-NC), uploaded by Jake Smith source CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© Jake Smith, some rights reserved (CC BY-NC), uploaded by Jake Smith source CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© theo_witsell, some rights reserved (CC BY-NC), uploaded by theo_witsell source CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© theo_witsell, some rights reserved (CC BY-NC), uploaded by theo_witsell source CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© theo_witsell, some rights reserved (CC BY-NC), uploaded by theo_witsell source CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© Jake Smith, some rights reserved (CC BY-NC), uploaded by Jake Smith source CC-BY-NC, permission granted to NCBG | Original Image ⭷

Feedback

See something wrong or missing on about Paspalidium geminatum? Let us know here: (Please include your name and email if at all complicated so we can clarify if needed.) We greatly appreciate feedback, and will include updates from you in our next webapp update, which can take a few months.


Cite as...