Ageratinastrum polyphyllum (Baker) Mattf.

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Ageratinastrum polyphyllum

Photo: Bart Wursten
Chelinda Bridge, Nyika National Park

Ageratinastrum polyphyllum

Photo: Bart Wursten
Chelinda Bridge, Nyika National Park

Ageratinastrum polyphyllum

Photo: Bart Wursten
Chelinda Bridge, Nyika National Park

Ageratinastrum polyphyllum

Photo: Bart Wursten
Chelinda Bridge, Nyika National Park

Ageratinastrum polyphyllum

Photo: Bart Wursten
Chelinda Bridge, Nyika National Park

Ageratinastrum polyphyllum

Photo: Bart Wursten
Chelinda Bridge, Nyika National Park

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

Synonyms: Ageratina goetzeana O. Hoffm.
Ageratina polyphylla (Baker) O. Hoffm.
Ageratinastrum goetzeanum (O. Hoffm.) Mattf.
Ageratinastrum virgatum Mattf.
Ageratum polyphyllum Baker
Common names:
Frequency:
Status: Native
Description:
Erect perennial herb with tufted, annual, densely leafy anddensely hairy stems up to c. 1 m tall, growing from a woody rootstock. Leaves (sub)sessile, overlapping, narrowly oblong-lanceolate to narrowly-elliptic or ovate, 2–4.5 cm long, sparsely to densely hairy above, paler, pubescent and glandular punctate beneath; margins rolled under. Capitula numerous, terminal, in few to many 3–15-capitulate clusters. Involucres 3–5 mm long and 4–6 mm wide, florets exserted. bracts several-seriate, purple above, woolly outside; outer narrowly ovate, from c 1 mm long; inner narrowly oblong to lanceolate, up to c. 5 mm long. Corollas narrowly funnel-shaped, 4–6 mm long, purple, darker in the upper half, puberulous outside or only the lobes. Achenes narrowly oblong-obovoid, 1.5–2 mm long, often curved, 4–5-angular, obscurely ribbed on the angles and more or less sparsely setulose; pappus of 4–7 broad shiny scales, 0.5–1 mm long and lacerate on the upper margin.
Notes:
Derivation of specific name: polyphyllum: with many leaves.
Habitat: In (sub)montane grassland.
Altitude range:
Flowering time:
Worldwide distribution: Southern Tanzania, northern Malawi and Zambia (Nyika only)
Malawi distribution: N
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: Tuesday 2 July 2019
Literature:

Burrows, J.E. & Willis, C.K. (eds) (2005). Plants of the Nyika Plateau Southern African Botanical Diversity Network Report No. 31 SABONET, Pretoria Page 78. (Includes a picture).

Phiri, P.S.M. (2005). A Checklist of Zambian Vascular Plants Southern African Botanical Diversity Network Report No. 32 Page 27.

Pope, G.V. (1992). Compositae Flora Zambesiaca 6(1) Pages 181 - 182. (Includes a picture).

Wild, H. & Pope, G.V. (1977). The Compositae of the Flora Zambesiaca area. 7. Vernonieae (excluding Vernonia). Kirkia 10(2) Page 358.

Other sources of information about Ageratinastrum polyphyllum:

Our websites:

Flora of Zambia: Ageratinastrum polyphyllum

External websites:

African Plants: A Photo Guide (Senckenberg): Ageratinastrum polyphyllum
BHL (Biodiversity Heritage Library): Ageratinastrum polyphyllum
EOL (Encyclopedia of Life): Ageratinastrum polyphyllum
GBIF (Global Biodiversity Information Facility): Ageratinastrum polyphyllum
Google: Web - Images - Scholar
iNaturalist: Ageratinastrum polyphyllum
IPNI (International Plant Names Index): Ageratinastrum polyphyllum
JSTOR Plant Science: Ageratinastrum polyphyllum
Mansfeld World Database of Agricultural and Horticultural Crops: Ageratinastrum polyphyllum
Plants of the World Online: Ageratinastrum polyphyllum
Tropicos: Ageratinastrum polyphyllum
Wikipedia: Ageratinastrum polyphyllum


Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2014-24

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2024). Flora of Malawi: Species information: Ageratinastrum polyphyllum.
https://www.malawiflora.com/speciesdata/species.php?species_id=201980, retrieved 29 March 2024

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