Spermatophytes (seed plants): Angiosperms (flowering plants): Monocots: Alismatales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Sagittaria engelmanniana
FAMILY
Alismataceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
This is one of just several arrowhead species with truly arrowhead-shaped leaf blades. In this species, the blade is typically much narrower than in the common S. latifolia and the infrequent S. australis. Those two have a roughly broadly triangular blade, but this species has a "skinny" leaf that may be up to 8 inches long but barely 1-2 inches wide. Read more at Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Sagittaria engelmanniana
FAMILY
Alismataceae
SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Sagittaria engelmanniana
SYNONYMOUS WITH Flora of North America
Sagittaria engelmanniana
INCLUDED WITHIN Guide to the Vascular Plants of Florida (Wunderlin & Hansen, 2011)
Sagittaria australis
SYNONYMOUS WITH Floristic Synthesis of North America (Kartesz, 1999)
Sagittaria engelmanniana
SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 027-03-010:
Sagittaria engelmanniana FAMILY Alismataceae
SYNONYMOUS WITH Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Sagittaria engelmanniana ssp. engelmanniana
SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Sagittaria longirostra
COMMON NAME:
Engelmann's Arrowhead, Blackwater Arrowhead
To see larger pictures, click or hover over the thumbnails.
)
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_saen_001_lvd
)
Bruce A. Sorrie bas_s_engelmanniana2
July Scotland County NC
)
Bruce A. Sorrie bas_s_engelmanniana2b
July Scotland County NC
Leave typically narrowly sagittate, to 8" long, the lobes less than 1" wide, per Wildflowers of the Sandhills Region (Sorrie, 2011).
COMPARE
Arrowhead, Arum, Elephant's Ear and Pickerelweed
)
Bruce A. Sorrie bas_s_engelmanniana2c
July Scotland County NC
Flowers 18-25mm across, in 2-4 whorls, female below, male above, per Wildflowers of the Sandhills Region (Sorrie, 2011).
)
Bruce A. Sorrie bas_s_engelmanniana3
July Scotland County NC
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Sagittaria engelmanniana
FAMILY
Alismataceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Sagittaria engelmanniana
FAMILY
Alismataceae
SYNONYMOUS WITH
Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Sagittaria engelmanniana
SYNONYMOUS WITH
Flora of North America
Sagittaria engelmanniana
INCLUDED WITHIN
Guide to the Vascular Plants of Florida (Wunderlin & Hansen, 2011)
Sagittaria australis
SYNONYMOUS WITH
Floristic Synthesis of North America (Kartesz, 1999)
Sagittaria engelmanniana
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 027-03-010:
Sagittaria engelmanniana
FAMILY
Alismataceae
SYNONYMOUS WITH
Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Sagittaria engelmanniana ssp. engelmanniana
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933, 1938)
Sagittaria longirostra
3573
Emergent aquatic (rooted); Forb
Perennial
Monoecious or polygamo-monoecious
Habitat: blackwater streambanks, sphagnum bogs, pocosins, beaver ponds, per Weakley's Flora
Native to the Carolinas & Georgia
Uncommon in SC Coastal Plain, rare elsewhere
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.
LEAVES:
Simple
Basal
Leaf blade sagittate
Petioles 10–40cm long, triangular
FLOWER:
Summer/Fall
White
3-merous
3 sepals
3 petals
Numerous stamens in staminate flowers
Superior ovary
Unisexual
FRUIT:
Summer/Fall
Achene
TO LEARN MORE about this plant, look it up in a good book!
- Wildflowers of the Atlantic Southeast (Cotterman, Waitt, & Weakley, 2019) p097
- Wildflowers of the Eastern United States (Duncan & Duncan, 1999) p138
- Field Guide to the Wildflowers of Georgia (Chafin, 2016) p360
- Wildflowers of the Sandhills Region (Sorrie, 2011) p276
If a search such as "Carex leptalea var. leptalea" doesn't deliver the results you want, try "Carex leptalea".
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