Rhododendron fallacinum Sleumer

Last updated: 04 August 2016

Scientific Name

Rhododendron fallacinum Sleumer (unresolved name) [1]


Replace this text with synonyms

Vernacular Name

Malaysia Petagar Hamzar (Kedayan, Sabah) [2]

Geographical Distributions

Rhododendron fallacinum is native to Sabah, Malaysia. [2]

R. fallacinum occurs in mossy forest, but also in open exposed localities, locally common at 1200-2600 m altitude. [2]

Botanical Description

R. fallacinum is a member of the family. This is a shrub or treelet up to 6 mm tall with star-shaped scales, of two obviously different sizes, equally found on inflorescences and leaves. There are 3-5(-6) of leaves per pseudowhorl at the uppernodes, ovate-oblong or subovate-lanceolate, with a size of (7-)10-16 cm x (2-) 2.5-6(-7) cm. [2]

The leaves base are rounded to auriculate, acute or acuminate apex and sessile or subsessile.  [2]

The inflorescence is 10-35-flowered. The flowers are scentless, with 2-3(-4) cm long stout pedicel, disk-like minute sepal while the petal is funnel-shaped, up to 2.5 cm long, pale red, deep orange-pink to pale scarlet, densely covered with small scales outside, at least at the tube. The tube is 7-12 mm long, lobes obovate to rounded. There are 10 stamens. [2]

The fruit is cylindrical with a size of 2.5-3 cm x 0.3 cm. [2]


No documentation.

Chemical Constituent

No documentation.

Plant Part Used

No documentation.

Traditional Use

No documentation.

Preclinical Data

No documentation.

Clinical Data

No documentation.


No documentation.

Poisonous Management

No documentation.

Line drawing


Figure 1: The line drawing of R. fallacinum. [2]


  1. The Plant List. Ver1.1. Rhododendron fallacinum Sleumer [homepage on the Internet]. c2013 [updated 2012 Mar 23; cited 2016 Jun 30]. Available from: http://www.theplantlist.org/tpl1.1/record/kew-2419775
  2. Lemmens RHMJ, Bunyapraphatsara N, editors. Plant Resources of South-East Asia 12(3): Medicinal and poisonous plants 3. Leiden, Netherlands: Backhuys Publishers; 2003.