August 25, 2015
Ipomoea hederacea (L.) Jacq
Twining summer annual vine.
Cotyledons are butterfly-shaped and usually narrower at the base. Leaves are alternate with erect hairs on both surfaces. The first leaf may be unlobed; all other leaves are three-lobed and ivy-shaped.
Densely hairy, climbing or trailing, twining vines up to 6 feet or more in length.
Flowers and fruit
Blue to purple or white petals fused into a funnel shape. Fruit are egg-shaped capsules containing dull gray, brown or black seeds with one round and two flattened surfaces.
Entireleaf morningglory (I. hederacea var. integriuscula Gray) Differs only from ivyleaf morningglory by having heart-shaped leaves. Leaf hairs are erect on both surfaces.
Pitted morningglory (I. lacunosa L.) Differs by having V-shaped cotyledons and heart-shaped leaves with no to few hairs.
Tall morningglory [I. purpurea (L.) Roth] Differs by having butterfly-shaped cotyledons with tip and base similar in width and heart-shaped leaves with dense hairs that lie flat.
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