Bariang (Begonia multangula)

Bariang (Begonia multangula) is a species of plant in the Begoniaceae, shrubs with branched stems, all hairy, flowers in panicles and branching, growing horizontally and vertically on the soil surface or rocks in shady or humid places.

B. multangula has an erect stem, cylindrical, long, soft, branched, whitish green or reddish green and has white hairs. Branching stems will become long stalks and end in a leaf.

The leaves are elliptical, asymmetrical and have long stalks. The veins are centered at the ends of the stalks going in all directions. The upper surface is hairy or hairless, rough and dark green or yellowish in color. The undersurface is hairy or hairless, rough and lighter in color.

The inflorescence grows at the end of a long, branching stalk. Flowers bloom white or yellowish green with a bright yellow sari in the center.

TAXON

Kingdom: Plantae
Phylum: Tracheophyta
Subphylum: Angiospermae
Class: Magnoliopsida
Order: Cucurbitales
Family: Begoniaceae
Genus: Begonia
Section: Sphenanthera L. in Sp. Pl.: 1056 (1753)
Species: Begonia multangula Blume in Enum. Pl. Javae 1: 96 (1827)

HOMOTYPIC SYNONYMS

Casparya multangula (Blume) A.DC. in A.P.de Candolle, Prodr. 15(1): 275 (1864)
Platycentrum multangulum (Blume) Miq. in Fl. Ned. Ind. 1(1): 695 (1856)
Sphenanthera multangula (Blume) Klotzsch in Bot. Zeitung (Berlin) 15: 181 (1857)

HETEROTYPIC SYNONYMS

Begonia multangula var. glabrata (Miq.) Miq. in Pl. Jungh.: 418 (1855)
Begonia robusta var. glabriuscula (A.DC.) J.Door. ex F.A.Barkley & Golding in Sp. Begon., ed. 2: 108 (1974)
Casparya multangula var. glabrata (Miq.) A.DC. (1864)
Casparya robusta var. glabriuscula A.DC. (1864)
Platycentrum multangulum var. glabratum Miq. (1856)
Sphenanthera multangula var. glabrata (Miq.) A.DC. (1864)

PUBLICATIONS

Govaerts, R. (1996). World Checklist of Seed Plants 2(1, 2): 1-492. MIM, Deurne.

Hughes, M. (2008). An annotated checklist of Southeast Asian Begonia: 1-164. Royal Botanic Gardens, Edinburgh.

Wiriadinata, H., Girmansyah, D., Hunter, J.M., Hoover, W.S. & Kartawinata, K. (2013). Floristic study of West Sumbawa, Indonesia. Reinwardtia 13: 391-404.

VERNACULAR NAME

English: Bariang
Indonesia: Bariang
Java: Bariang

Aryo Bandoro
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