Synonyms:
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Common names:
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Frequency:
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Very locally frequent |
Status:
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Native |
Description:
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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. |
Type location:
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Mt Gorongosa, Mozambique |
Notes:
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A very recently described new taxon (Janssen, Ballings, Mertens & Dessein in Phytotaxa 333 -1: 73-85,2018). |
Derivation of specific name:
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wuerstenii named after Bart Würsten, author, editor and photographer of the online Mozambique Flora, who collected the type specimen. |
Habitat:
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In shelter of rocks, shrubs or trees at margins of montane grassland. |
Altitude range: (metres) |
1700 - 1800 m |
Flowering time: | Throughout the year |
Worldwide distribution:
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Restricted to higher plateau of Mt Gorongosa in Mozambique. |
National distribution:
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MS |
Growth form(s):
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Endemic status:
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Endemic |
Red data list status:
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Vulnerable
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Insects associated with this species:
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Spot characters:
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Display spot characters for this species |
Images last updated: |
Friday 3 June 2022 |
Literature:
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Darbyshire, I., Timberlake, J., Osborne, J., Rokni, S., Matimele, H., Langa. C., Datizua, C., de Sousa, C., Alves, T., Massingue, A., Hadj-Hammou, J., Dhanda, S., Shah, T., Wursten, B. (2019). The endemic plants of Mozambique: diversity and conservation status Phytotaxa 136 Page 81.
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).
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