Anthospermum usambarense K.Schum.

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Anthospermum usambarense

Picture: Bart Wursten
Road between Chelinda Bridge and Dam 3, Nyika National Park

Anthospermum usambarense

Picture: Bart Wursten
Road between Chelinda Bridge and Dam 3, Nyika National Park

Anthospermum usambarense

Picture: Bart Wursten
Road between Chelinda Bridge and Dam 3, Nyika National Park

Anthospermum usambarense

Picture: Bart Wursten
Road between Chelinda Bridge and Dam 3, Nyika National Park

Anthospermum usambarense

Picture: Bart Wursten
Road between Chelinda Bridge and Dam 3, Nyika National Park

Anthospermum usambarense

Picture: Bart Wursten
Road between Chelinda Bridge and Dam 3, Nyika National Park

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Synonyms: Anthospermum aberdaricum K. Krause
Anthospermum keilii K. Krause
Anthospermum leuconeuron K.Schum.
Anthospermum prittwitzii K. Schum.
Common names:
Frequency:
Status: Native
Description:
Single-stemmed, erect, shrub, 1–3 m tall. Stem mostly much-branched above with branches more or less regular, opposite or 3-whorled, often ascending to more or less erect, often densely leafy. Leaves opposite of 3-whorled, subsessile, narrowly obovate, oblanceolate, oblong-elliptic, lanceolate to almost linear, 3–15 mm long, rarely up to 20 mm, mostly hairless; margins often rolled under; stipular sheath shortly hairy, with 3–8 setae 1–4 mm long. Flowers unisexual on different plants, subsessile, in many-flowered clusters at nodes; female inflorescences often quite contracted, dense, cylindrical; corolla usually 4-merous, greenish to creamy yellow, often dark purplish-red or -brown ringed outside. Male flowers larger than female. Fruit reddish-brown, shiny or greyish-brown; mericarps more or less obovate, oblong to elliptic, 1.2–2.4 mm long, mostly hairless, crowned by 2 triangular calyx lobes, one often larger than the other.
Type location:
Syntypes from Tanzania
Notes: This species is known to hybridize with Anthospermum welwitschii and A. whyteanum where the two species occur close together.
Derivation of specific name: usambarense: of the Usambara Mts.
Habitat: In montane grassland, often among ericoid-bracken scrub near edges of forest.
Altitude range: 1850 - 2250 m
Flowering time:
Worldwide distribution: Southern Sudan, Kenya, Uganda, Tanzania, northern Malawi and Zambia (Nyika only).
Zambian distribution (Flora Zambesiaca): E
Zambian distribution (Provinces): Mc
Growth form(s):
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters: Display spot characters for this species
Content last updated: Wednesday 17 April 2019
Literature:

Baumann, G. (2005). Photographic Guide to Wildflowers of Malawi Wildlife and Environmental Society of Malawi Pages 108 - 109. (Includes a picture).

Burrows, J.E. & Willis, C.K. (eds) (2005). Plants of the Nyika Plateau Southern African Botanical Diversity Network Report No. 31 SABONET, Pretoria Page 238.

Phiri, P.S.M. (2005). A Checklist of Zambian Vascular Plants Southern African Botanical Diversity Network Report No. 32 Page 87.

Verdcourt, B. (1988). Rubiaceae, Part 1 Flora Zambesiaca 5(1) Page 153.

Other sources of information about Anthospermum usambarense:

Our websites:

Flora of Malawi: Anthospermum usambarense

External websites:

African Plants: A Photo Guide (Senckenberg): Anthospermum usambarense
BHL (Biodiversity Heritage Library): Anthospermum usambarense
EOL (Encyclopedia of Life): Anthospermum usambarense
ePIC (electronic Plant Information Center): Anthospermum usambarense
Flora Zambesiaca web site: Anthospermum usambarense
GBIF (Global Biodiversity Information Facility): Anthospermum usambarense
Google: Web - Images - Scholar
GRIN (Germplasm Resources Information Network): Anthospermum usambarense
iNaturalist: Anthospermum usambarense
IPNI (International Plant Names Index): Anthospermum usambarense
JSTOR Plant Science: Anthospermum usambarense
Kew Herbarium catalogue: Anthospermum usambarense
Mansfeld World Database of Agricultural and Horticultural Crops: Anthospermum usambarense
Plants of the World Online: Anthospermum usambarense
Tropicos: Anthospermum usambarense
Wikipedia: Anthospermum usambarense


Copyright: Mike Bingham, Annette Willemen, Bart Wursten, Petra Ballings and Mark Hyde, 2011-21

Bingham, M.G., Willemen, A., Wursten, B.T., Ballings, P. and Hyde, M.A. (2021). Flora of Zambia: Species information: Anthospermum usambarense.
https://www.zambiaflora.com/speciesdata/species.php?species_id=189830, retrieved 12 May 2021

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