smallflower morningglory
Family
ConvolvulaceaeScientific Name
Jacquemontia tamnifolia
Other Common Names:
hairy clustervine
Synonyms (former Scientific Names):
Thyella tamnifolia
Ipomoea tamnifolia
Leaves
Occur on petioles that are alternately arranged along the stem. Leaves are approximately 1 1/4 to 4 1/2 inches long by 3/4 to 3 inches wide. Hairs occur on the margins and only occasionally on the leaf surfaces. Leaves are ovate to elliptic in outline.
Identifying Characteristics
A trailing or climbing summer annual with light blue flowers that may reach 6 1/2 feet in length.A trailing or climbing vine with ovate to elliptic leaves and many light blue flowers. These characteristics help to distinguish smallflower morningglory from most other weeds as well as other morningglories.
Flower Seed Head
Flowers: Many light blue flowers occur in clusters with many bracts below. Individual flowers are approximately 1/2 to 3/4 inch in width.Fruit: A capsule.
Seed Fruit
Seedling: Cotyledons are rounded with slight indentations and resemble those of a mustard. Cotyledons are without hairs.<br />Roots: Taproot.
Where Found
Smallflower morningglory is an isolated weed of agronomic crops, nurseries, and landscapes in the southeastern United States.
Growth Habit
Varies:
upright and nonwoody,
vine
Thorns or Spines
not present
Approximate Flower Diameter
Varies:
pencil,
dime,
nickle
Dominant Flower Color
Varies:
blue,
purple
Flower Symmetry
radial symmetery
Leaf Hairs
has hairs
Leaf Shape
Varies:
oval,
triangle
Leaf Arrangement
alternate
Leaf Margin
entire
Leaf Structure
simple
Leaf Stalk
longer than leaf
Stem Hairs
has hairs
Stem Cross Section
round or oval
Milky Sap
not present
Root Structure
taproot
Life Cycle
summer annual
Ochrea
not present
Plant Type
Vine