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Alamo Vine

Merremia dissecta

Other common name(s):

Noyau Vine, Correhuela De Las Doce

Family:

Convolvulaceae (Morning Glory Family)

Plant Ecoregion Distribution Map

Gulf Coast Prairies and Marshes, Southern Texas Plains, Texas Blackland Prairies
Coastal Sand Plain, Lower Rio Grande Alluvial Floodplain, Lower Rio Grande Valley, Northern Humid Gulf Coastal Prairies, Southern Subhumid Gulf Coastal Prairies
Northern Nueces Alluvial Plains, Rio Grande Floodplain and Terraces, Semiarid Edwards Bajada, Texas-Tamaulipan Thornscrub
Northern Blackland Prairie, Southern Blackland Prairie

Plant Characteristics

Growth Form

Vine

Height

10
to
12
ft.

Spread

.25
to
.50
ft.

Leaf Retention

Deciduous

Lifespan

Perennial

Habitat and Care Requirements

Soil Type(s)

Sand, Loam, Clay, Limestone, Caliche, Calcareous, Well Drained

Light Requirement

Sun, Part Shade

Water Requirement

Low, Medium

Native Habitat

Grassland

Bloom and Attraction

Bloom Color

White, Purple

Bloom Season

Summer, Fall

Seasonal Interest

Nectar

Wildlife Benefit

Butterflies

Maintenance

Tolerates alkaline soil. Needs good drainage. Very drought-tolerant; continues to bloom through summer even without water. Prune to direct growth.

Comments

Blooms May-November. Alamo Vine has large white flowers with dark burgundy centers, that bloom in the afternoon. The dark green foliage is intricately divided. The brown seed capsules resemble the flowers themselves. Fast-growing. Climbs by twining. Self-seeds easily. Can spread fast via rhizomes, so it is good for erosion control. Provides nectar to many species of butterflies.
Previous Scientific Name(s): Synonym/s: Convolvulus dissectus, Ipomoea dissecta, Ipomoea sinuata, Operculina dissecta

References

1) Griffith, Bryce, Omernick & Rodgers (2007). Ecoregions of Texas. 2) https://www.wildflower.org/plants/result.php?id_plant=MEDI2. 3) http://bonap.net/TDC/Image/Map?taxonType=Species&taxonId=7939&locationType=County&mapType=Normal. 4) https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=30867#null, 5) Native and Adapted Landscape Plants, City of Austin and Texas A&M, 2014.

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