Impatiens wuerstenii S.B. Janssens & Dessein

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Impatiens wuerstenii

Photo: Bart Wursten
Plateau below Nhandore Peak, Mt Gorongosa

Impatiens wuerstenii

Photo: Bart Wursten
Plateau below Nhandore Peak, Mt Gorongosa

Impatiens wuerstenii

Photo: Bart Wursten
Plateau below Nhandore Peak, Mt Gorongosa

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Species details: Click on each item to see an explanation of that item (Note: opens a new window)

Synonyms:
Common names:
Frequency: Very locally frequent
Status: Native
Description:
Perennial herb with erect, branched stems, up to 1 m tall, pubescent above, becoming hairless below. Leaves spirally arranged elliptic to subovate, 4.5–8.6 cm long, sparsely pubescent on the veins above, more densely pubescent beneath; margin crenate-dentate with teeth up to 2 mm long; petiole 0.7–2 cm long, pubescent. Flowers solitary, pink; bracts at the base linear-subulate, to c. 3 mm long; pedicels 3.5–5.5 cm long, pubescent; lateral sepals narrowly ovate-triangular, 4.5–5 mm long 1.5–2 mm wide, hairless inside, pubescent outside; lower sepal c. 11 mm long, 7.5 mm deep, abruptly constricted into a narrow spur 3.7–4 cm long, more densely pubescent at the base; dorsal petal broadly ovate to almost circular, deeply emarginate, dorsally with a narrow crest terminating in a distinct acute projection at the apex, 10–12 mm long and 11–12 mm wide, hairless inside, with a few hairs outside particularly on the crest; lateral united petals c. 19 mm long; upper petal elliptic oblong, distinctly apiculate, 10–12 mm long and 5 mm wide, about half the size of the lower petal; lower petal 16–17 mm long 8 mm wide, hairless. Ovary hairless.
Notes: A very recently described new taxon (Janssen, Ballings, Mertens & Dessein in Phytotaxa 333 -1: 73-85,2018).
Derivation of specific name: wuerstenii named after Bart Würsten, author, editor and photographer of the online Mozambique Flora, who collected the type specimen.
Habitat: In shelter of rocks, shrubs or trees at margins of montane grassland.
Altitude range: 1700 - 1800 m
Flowering time:Throughout the year
Worldwide distribution: Restricted to higher plateau of Mt Gorongosa in Mozambique.
Mozambique distribution: MS
Growth form(s):
Endemic status: Endemic
Red data list status: Vulnerable
Insects associated with this species:
Spot characters: Display spot characters for this species
Content last updated: Saturday 10 March 2018
Literature:

Janssens, S.B., Ballings, P., Martens, A. & Dessein, S. (2018). A new endemic Impatiens species on Mount Gorongosa (Mozambique) demonstrates the conservation importance of montane areas in Africa Phytotaxa 333(1) Pages 73 - 77. Protologue (Includes a picture).

Other sources of information about Impatiens wuerstenii:

External websites:

African Plants: A Photo Guide (Senckenberg): Impatiens wuerstenii
Biodiversity Explorer (Biodiversity of southern Africa): Impatiens wuerstenii
BHL (Biodiversity Heritage Library): Impatiens wuerstenii
EOL (Encyclopedia of Life): Impatiens wuerstenii
ePIC (electronic Plant Information Center): Impatiens wuerstenii
Flora Zambesiaca web site: Impatiens wuerstenii
GBIF (Global Biodiversity Information Facility): Impatiens wuerstenii
Google: Web - Images - Scholar
GRIN (Germplasm Resources Information Network): Impatiens wuerstenii
IPNI (International Plant Names Index): Impatiens wuerstenii
JSTOR Plant Science: Impatiens wuerstenii
Kew Herbarium catalogue: Impatiens wuerstenii
Mansfeld World Database of Agricultural and Horticultural Crops: Impatiens wuerstenii
The Plant List (version 1.1): Impatiens wuerstenii
Tropicos: Impatiens wuerstenii


Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave 2007-18

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2018). Flora of Mozambique: Species information: Impatiens wuerstenii.
https://www.mozambiqueflora.com/speciesdata/species.php?species_id=229510, retrieved 9 December 2018

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