purple ammannia
Family
LythraceaeScientific Name
Ammannia coccinea
Other Common Names:
purple toothcup
scarlet toothcup
valley redstem
Synonyms (former Scientific Names):
Ammannia coccinea ssp. purpurea
Ammannia teres
Habit
Purple ammannia is a branching summer annual.
Leaves
Leaves are arranged oppositely. They are linear in shape and are fused to the stem(sessile)
Flower Seed Head
Flowers are pink or purple and are nearly sessile.
Where Found
Ususally found in wet soil.
Growth Habit
upright and nonwoody
Thorns or Spines
not present
Approximate Flower Diameter
pencil
Dominant Flower Color
Varies:
purple,
pink
Flower Symmetry
radial symmetery
Leaf Hairs
no hairs
Leaf Shape
lance
Leaf Arrangement
opposite
Leaf Margin
entire
Leaf Structure
simple
Leaf Stalk
none
Stem Hairs
no hairs
Stem Cross Section
round or oval
Milky Sap
not present
Life Cycle
summer annual
Ochrea
not present
Plant Type
Herb