Compiled by
P.P.J. Herman, E. Retief, M. Koekemoer and W.G. Welman
Description
:
Shrubs or trees, dioecious; often aromatic
Leaves
alternate, petiolate or subsessile, entire, spinulose-denticulate, coarsely dentate, serrate or 3-lobed at apex, leathery, sometimes pale and tomentose below
Capitula
discoid, in terminal or axillary panicles
Involucre
campanulate to elliptic or obconic; involucral bracts in 1-several rows, often imbricate
Receptacle
epaleate
Florets
yellowish or whitish
Male capitula
with 5-lobed, tubular corollas
Anthers
exserted, calcarate and caudate; endothecial tissue polarised
Style
filiform, minutely bifid at tips or undivided
Female capitula
with 3-5-lobed, tubular to filiform corolla, very short in Tarchonanthus
Style
simple, exserted, with short often recurved branches, flattened or blunt near tip
Cypselas
angled or few-ribbed, pubescent
Pappus
0 (
Tarchonanthus
) or of 1 or 2 rows of rough bristles (
Brachylaena
)
Nomenclature:
Tarchonantheae
Kosteletzky: 668 (1833)
Keeley & Jansen: 179 (1991)
Distribution & Notes:
Global
: 2,
Brachylaena
R.Br. and
Tarchonanthus
L. restricted to Africa, Madagascar and associated islands; both in southern Africa
Southern Africa
: Genera 2, species 11
References:
HILLIARD, O.M. 1977.
Compositae
in Natal
. University of Natal Press, Pietermaritzburg
KEELEY, S.C. & JANSEN, R.K. 1991. Evidence from chloroplast DNA for the recognition of a new tribe, the
Tarchonantheae
, and the tribal placement of
Pluchea
(
Asteraceae
).
Systematic Botany
16
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