I will have a better chance of identifying my plant later this summer when the plants in the ditch where I got my aquarium specimens bloom. I should be able to confirm if it is really platyphylla
. S. cristata
is clustered mostly in Wisconsin and N. Miinnesota, whereas S. platyphylla
is clustered primarily in Louisiana, E. Texas, SE. Oklahoma and S. Arkansas. It is more sporadic in Mississippi, Alabama, and the rest of the southeast United States. Right now, I am thinking I have platyphylla
and 2ManyHobbies has cristata
primarily because of location. 2ManyHobbies lives in Minnesota, and I am in Mississippi. I have seen what I am pretty sure is also S. platyphylla
growing in 7 or 8 feet of water in the San Marcos River close to where the river emerges from the ground in the city of San Marcos, Texas.
Collected in the San Marcos River, March, 2004