Title: Classification of Vegetation Communities of Maryland

Classification of Vegetation Communities of Maryland: First Iteration

A Subset of the International Classification of Ecological
Communities: Terrestrial Vegetation of the United States
March 2004

V. HERBACEOUS VEGETATION
V.B.2.N.g. Tidal temperate perennial forb vegetation
V.B.2.N.g.10. SAGITTARIA SUBULATA - LIMOSELLA AUSTRALIS TIDAL HERBACEOUS ALLIANCE
Awl-leaf Arrowhead - Awlwort Tidal Herbaceous Alliance


Concept: Low intertidal marshes, characterized by sparse to more dense vegetation of Sagittaria subulata and Limosella australis.

Range: This alliance is found in North Carolina, Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Rhode Island (?), and Virginia, and in Canada.

States/Provinces: CT DE MA MD ME NB? NF? NH NJ NS? NY PE? QC? RI VA?

TNC Ecoregions: 57:C, 58:C, 62:C, 63:C

USFS Ecoregions: 212Dc:CCC, 221Ab:CCC, 221Ad:CCC, 221Af:CCP, 221Ag:CCC, 221Ak:CCC, 232Ab:CCP, 232Ac:CCC, 232Ad:CCP, 232Bt:CCC, 232Bx:CCC, 232Bz:CCP, 232Ch:CCC

Synonymy: Estuarine Intertidal: Saline/Brackish Flats (Swain and Kearsley 2001)

References: Swain and Kearsley 2001, Whitlatch 1982

Authors: ECS/SCS, JT, East Identifier: A.1710

SAGITTARIA SUBULATA - LIMOSELLA AUSTRALIS TIDAL HERBACEOUS VEGETATION
Awl-leaf Arrowhead - Awlwort Tidal Herbaceous Vegetation
North Atlantic Coast Intertidal Mud Flat                                                 G? (97-12-01)
Ecological Group (SCS;MCS):   Atlantic Coast Rivershore - Tidal Fresh Marshes (202-75; n/a)

Concept: This brackish tidal flat community occurs along the northeastern Atlantic coast on muddy to sandy substrates of broad, flat tidal river shores. The flats are exposed at low tide and submerged at high tide. Vegetation is of variable cover and may be quite sparse. Characteristic plants are low-growing rosette species such as Sagittaria subulata, Sagittaria calycina var. spongiosa (= Sagittaria spathulata), Limosella australis (= Limosella subulata), Lilaeopsis chinensis, Zannichellia palustris, and Eleocharis parvula.

Range: This association occurs along the Atlantic coast from Maine to Virginia. It may also occur in Canada.

States/Provinces: CT:S?, DE:S1, MA:S3, MD:S?, ME:S3, NB?, NF?, NH:S?, NJ:S1S3, NS?, NY:S1S2, PE?, QC?, RI:S?, VA?

TNC Ecoregions: 57:C, 58:C, 62:C, 63:C

USFS Ecoregions: 212Dc:CCC, 221Ab:CCC, 221Ad:CCC, 221Af:CCP, 221Ag:CCC, 221Ak:CCC, 232Ac:CCC, 232Bt:CCC, 232C:CC

Synonymy: Southern New England/Gulf of Maine Saline/ Brackish Intertidal Flat (Rawinski 1984), Southern New England/Gulf of Maine Fresh/ Brackish Subtidal Estuarine Community (Rawinski 1984)

References: Bowman 2000, Breden et al. 2001, Edinger et al. 2002, Enser 1999, Gawler 2002, Metzler and Barrett 2001, Rawinski 1984, Reschke 1990, Sperduto 2000b, Swain and Kearsley 2001, Whitlatch 1982

Authors: S.L. Neid, ECS Confidence: 2 Identifier: CEGL004473 

- Maryland Vegetation Classification Subset Report V.B. Perennial forb vegetation
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