Spermatophytes (seed plants): Angiosperms (flowering plants): Monocots: Alismatales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Sagittaria graminea
FAMILY
Alismataceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
An often overlooked but very helpful character of Grassy Arrowhead is the thick and hard, short rhizome, absent in its relatives. Learn more at Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Sagittaria graminea var. graminea
FAMILY
Alismataceae
SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Sagittaria graminea
INCLUDED WITHIN Flora of North America north of Mexico, vol. 22 (2000)
Sagittaria graminea ssp. graminea
SYNONYMOUS WITH Floristic Synthesis of North America (Kartesz, 1999)
Sagittaria graminea var. graminea
SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 027-03-004a:
Sagittaria graminea var. graminea FAMILY Alismataceae
SYNONYMOUS WITH Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Sagittaria graminea var. graminea
INCLUDING Manual of the Southeastern Flora (Small, 1933, 1938)
Sagittaria cycloptera
INCLUDING Manual of the Southeastern Flora (Small, 1933, 1938)
Sagittaria graminea
COMMON NAME:
Grassleaf Arrowhead, Grassy Arrowhead
To see larger pictures, click or hover over the thumbnails.
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USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_saea3_001_lvd
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Keith Bradley kab_s_graminea_chap_06350
March Collier County FL
Fakahatchee Strand Preserve State Park
Flowers to 2.3 cm diameter; filaments shorter than anthers, per Flora of North America.
COMPARE
aquatic plants
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Sagittaria graminea
FAMILY
Alismataceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Sagittaria graminea var. graminea
FAMILY
Alismataceae
SYNONYMOUS WITH
Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Sagittaria graminea
INCLUDED WITHIN
Flora of North America north of Mexico, vol. 22
Sagittaria graminea ssp. graminea
SYNONYMOUS WITH
Floristic Synthesis of North America (Kartesz, 1999)
Sagittaria graminea var. graminea
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 027-03-004a:
Sagittaria graminea var. graminea
FAMILY
Alismataceae
SYNONYMOUS WITH
Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Sagittaria graminea var. graminea
INCLUDING
Manual of the Southeastern Flora (Small, 1933, 1938)
Sagittaria cycloptera
INCLUDING
Manual of the Southeastern Flora (Small, 1933, 1938)
Sagittaria graminea
2995
Emergent aquatic that also has submerged leaves (rooted); Forb
Perennial
Monoecious or polygamo-monoecious
Habitat: marshes, ponds, freshwater and oligohaline tidal marshes, per Weakley's Flora
Native to the Carolinas & Georgia
Common in Coastal Plain (rare elsewhere)
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.
LEAVES:
Simple
Basal
Blades of emersed leaves linear to linear-oblanceolate; submersed leaves phyllodial
Petioles of emersed leaves 6.5-17cm long, triangular
RHIZOMES? STOLONS?
Rhizomes present (coarse); stolons absent; corms absent
FLOWER:
Spring/Summer/Fall
White
3-merous
3 sepals
3 petals
Numerous stamens in staminate flowers
Superior ovary
Unisexual
Inflorescence a raceme
FRUIT:
Spring/Summer/Fall
Achene
TO LEARN MORE about this plant, look it up in a good book!
- Atlantic Coastal Plain Wildflowers (Nelson, 2006) p108
- Guide to the Wildflowers of SC, 1st ed. (Porcher & Rayner, 2001) p332
- Guide to the Wildflowers of SC, 2nd ed. (McMillan, Porcher, Rayner, & White; 2022) p412
- Field Guide to the Rare Plants of Georgia (Chafin, 2007) p321
- Wildflowers of the Atlantic Southeast (Cotterman, Waitt, & Weakley, 2019) p098
- Wildflowers of the Eastern United States (Duncan & Duncan, 1999) p138
- Field Guide to the Wildflowers of Georgia (Chafin, 2016) p360
- Wildflowers of Tennessee (Carman, 2005) p336
- Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005) p388
- Wildflowers of the Sandhills Region (Sorrie, 2011) p277
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