Ageratinastrum polyphyllum (Baker) Mattf.

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Picture: Bart Wursten
Chelinda Bridge, Nyika National Park

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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.
Type location:	Malawi, Nyika
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)
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:	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.

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Flora of Malawi: Ageratinastrum polyphyllum

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African Plants: A Photo Guide (Senckenberg): Ageratinastrum polyphyllum
BHL (Biodiversity Heritage Library): Ageratinastrum polyphyllum
EOL (Encyclopedia of Life): Ageratinastrum polyphyllum
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IPNI (International Plant Names Index): Ageratinastrum polyphyllum
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Mansfeld World Database of Agricultural and Horticultural Crops: Ageratinastrum polyphyllum
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Wikipedia: Ageratinastrum polyphyllum