Isodon atroruber

Isodon atroruber is a species of flowering plant endemic to Bhutan. It differs from other species of Isodon in having deep wine red flowers in narrow panicles.[1]

Isodon atroruber
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Lamiaceae
Genus: Isodon
Species:
I. atroruber
Binomial name
Isodon atroruber
R.A.Clement

Description

Isodon atroruber is a perennial herb with stems growing to around 50cm. Stems little branched and four angled, glandular hairy. Leaves ovate, acuminate, base rounded-truncate with the lamina slightly decurrent on petiole. Leaf margin serrate-dentate. Upper surface of the leaves glandular-pubescent while the lower surface has villous hairs on veins. Inflorescence is a narrow panicle with deep wine red to deep reddish-purple corolla. Nutlets are ellipsoid and pale brown in color.[2]

Type status

The holotype was collected by Grierson & Long from Dotena in Thimphu district, Bhutan on 5 September 1984. The place is located at an elevation of 2550m from the sea level. The type specimen is currently held at the Herbarium, Royal Botanic Garden Edinburgh with catalogue number E00273726[3].

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References
  1. Yangzom, Rinchen; Long, David (11 November 2015). Plants Endemic to Bhutan Himalaya. Bhutan: National Biodiversity Centre. ISBN 978-99936-763-5-5.
  2. Long, D.G; Grierson, A.J.C (1999). FLORA OF BHUTAN INCLUDING A RECORD OF PLANTS FROM SIKKIM AND DARJEELING (Volume 2 Part 2 ed.). Royal Botanic Garden Edinburgh, Royal Government of Bhutan. pp. 996–997. ISBN 1872291430.
  3. "Royal Botanic Garden Edinburgh - Herbarium catalogue". data.rbge.org.uk. Retrieved 23 May 2020.
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