Decumaria barbara

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Decumaria barbara
Decumaria barbara Gil.jpg
Photo taken by Gil Nelson
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida – Dicotyledons
Order: Rosales
Family: Hydrangeaceae
Genus: Decumaria
Species: D. barbara
Binomial name
Decumaria barbara
DECU BARB dist.jpg
Natural range of Decumaria barbara from USDA NRCS Plants Database.

Common names: woodvamp, climbing hydrangea, decumary, cowitch vine

Taxonomic notes

Synonyms: Hydrangea barbara (Linnaeus) B. Schulz[1]

Varieties: none[1]


It has a vining and climbing habit.[2]

"High-climbing, woody vine with adventitious, aerial roots. Leaves opposite, ovate, elliptic, or obovate, 3-12 cm long, 1-7 cm wide, glabrous above, pubescent beneath, at least n the veins, acute or acuminate, entire to coarsely serrate, base cuneate to cordate, petiolate. Corymbs terminal, 4-10 cm broad; flowers numerous, perfect, regular, bracteates, short-pedicellate. Calyx tube 7-10 cm ribbed, turbinate, ca. 1.5 mm long in anthesis, 3.5-4 mm long in fruit, lobes 7-10, persistent, 0.2-1 mm long; petals 7-10, white; stamens numerous; carpels 7-10, stigma capitate with 7-10 lobes, style solitary, thick, ca. 1 mm long, ovary inferior, 7-10 locular, many-ovulate, placentation parietal. Capsules turbinate or obovoid, conspicuously longitudinally ribbed, 4-5 mm long; seeds lustrous, yellow, linear-terete, ca. 2 mm long."[3]




It is found in in swampy woods, along banks and streams, in floodplains, in mesic woodlands, slopes of ravines, and seen climbing on a tree trunk. It requires low light levels. It is associated with drying sandy loam soil types.[2]

Associated species includes Acer, Carpinus, Fraxinus, Nyssa, Quercus, Taxodium.[2]


Flowers are white, bisexual and radially symmetrical.[4] It has been observed flowering in April and May and seen fruiting in May.[2][5]Fruit capsules are urn-shaped and tan.[6]

Conservation, cultivation, and restoration

Cultural use

Photo Gallery

References and notes

  1. 1.0 1.1 Weakley, A.S. 2020. Flora of the Southeastern United States. Edition of 20 October 2020. University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
  2. 2.0 2.1 2.2 2.3 Florida State University Robert K. Godfrey Herbarium database. URL: Last accessed: June 2014. Collectors: Loran C. Anderson, Rodie White, Robert K. Godfrey, Travis MacClendon, Karen MacClendon, and Kathy Willis. States and Counties: Florida: Calhoun, Gadsden, Jackson, Liberty, and Wakulla. Georgia: Grady.
  3. Radford, Albert E., Harry E. Ahles, and C. Ritchie Bell. Manual of the Vascular Flora of the Carolinas. 1964, 1968. The University of North Carolina Press. 520. Print.
  4. [[1]]Accessed: April 17, 2016
  5. Nelson, G. PanFlora: Plant data for the eastern United States with emphasis on the Southeastern Coastal Plains, Florida, and the Florida Panhandle. Accessed: 19 MAY 2021
  6. [[2]]Lady Bird Johnson Wildflower Center. Accessed: April 16, 2016