Glyceria arkansana Fernald. Common name: Arkansas Mannagrass. Phenology: May-Jun. Habitat: Swamps, drawdown ponds, ditches. Distribution: IL south to LA, AR, and e. TX. The VA report is in error.
Origin/Endemic status: Endemic
Taxonomy Comments: Mohlenbrock (2014) gives additional characters (of unknown utility) for separating G. arkansana from G. septentrionalis: anthers < 1 mm long in G. arkansana (vs. 1-2 mm long in G. septentrionalis), and lemmas 2.5-3.0 mm long and sharply nerved (vs. 3.5-5.5 mm long and obscurely nerved).
Synonymy ⓘ: = ETx1, F, HC, Il, K4, NcTx, Tx, Tucker (1996); = Glyceria septentrionalis Hitchc. var. arkansana (Fernald) Steyerm. & C.L.Kučera — Ar, FNA24, Mo1, Tn; < Glyceria septentrionalis Hitchc. — C, G. Basionym: Glyceria arkansana Fernald 1929
Links to other floras: = Glyceria septentrionalis var. arkansana - FNA24
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Wetland Indicator Status:
- Atlantic and Gulf Coastal Plain: FACW
- Eastern Mountains and Piedmont: OBL
- Great Plains: OBL
- Midwest: OBL
Heliophily ⓘ: 6
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© Jake Smith, some rights reserved (CC BY-NC), uploaded by Jake Smith source CC-BY-NC, permission granted to NCBG | Original Image ⭷
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