Gunnera manicata

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Gunnera manicata
Gunnera manicata3.JPG
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Gunnerales
Family: Gunneraceae
Genus: Gunnera
Species:
G. manicata
Binomial name
Gunnera manicata

Gunnera manicata, known as Brazilian giant-rhubarb,[1] or giant rhubarb[2] is a species of flowering plant in the Gunneraceae family from Brazil.[3][4]

Gunnera manicata, Devon, England

It is a large, clump-forming herbaceous perennial growing to 2.5 m (8 ft) tall by 4 m (13 ft) or more. The leaves of G. manicata grow to an impressive size. Leaves with diameters well in excess of 4 ft (122 cm) are commonplace, with a spread of 10 ft (3 m) by 10 ft (3 m) on a mature plant. The underside of the leaf and the whole stalk have spikes on them. In early summer it bears tiny red-green flowers in conical branched panicles, followed by small, spherical fruit. However, it is primarily cultivated for its massive leaves.[4]

This plant grows best in damp conditions such as near garden ponds, but dislikes winter cold and wet.

It has gained the Royal Horticultural Society's Award of Garden Merit.[5]

Despite the common name, this plant is not closely related to rhubarb. It was named after a Norwegian bishop and naturalist Johan Ernst Gunnerus, who also named and published a description about the basking shark.[citation needed]

It is native to the Serra do Mar mountains of Brazil, where it is used in traditional medicine for sexually transmitted diseases.[6]

References[edit]

  1. ^ BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
  2. ^ "Gunnera manicata". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 6 January 2016.
  3. ^ Wanntorp, Livia; Wanntorp, Hans-Erik; Källersjö, Mari (2002-08-01). "The identity of Gunnera manicata Linden ex André - resolving a Brazilian-Colombian enigma". Taxon. 51 (3): 493–497.
  4. ^ a b RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 1405332964.
  5. ^ "Gunnera manicata AGM". RHS Plant Finder. Royal Horticultural Society. Retrieved 27 July 2013.
  6. ^ Mariotti, Kristiane de Cássia; Schuh, Roselena Silvestri; Matos Nunes, Jéssica de; Salamoni, Sabrina Pinto; Meirelles, Gabriela; Barreto, Fabiano; Von Poser, Gilsane Lino; Singer, Rodrigo Bustos; Dallegrave, Eliane; Van Der Sand, Sueli Teresinha; Limberger, Renata Pereira (Jan 2014). "Chemical constituents and pharmacological profile of Gunnera manicata L. extracts". Brazilian Journal of Pharmaceutical Sciences. 50 (1). Retrieved 20 December 2016.

External links[edit]