Annual herbs, usually erect, glabrous, strongly aromatic
Stems
simple or diffusely branched
Leaves
opposite or alternate, sessile, base expanded with several, narrow, linear segments, pinnate or rarely simple, lobes lanceolate to narrowly elliptic, margins sharply serrate
Capitula
usually radiate, few-flowered, solitary on long peduncles or corymbosely arranged
Involucre
cylindric; bracts usually in 1 row, outer ones minute, inner ones connate
Receptacle
flat, epaleate
Ray florets
female, fertile; corolla pale yellow to lemon-yellow, strap-shaped
Anthers
with bases obtuse; apical appendage lanceolate
Style
branches narrowly oblong, truncate and penicillate or with deltoid appendage, papillose on outer faces
Cypselas
linear, narrowed to base, compressed or angled
Pappus
of few scales, sometimes awned
x = 6 (10, 11) (high polyploidy)
Nomenclature:
*Tagetes
L.
Linnaeus: 887 (1753)
Linnaeus: 378 (1754)
Phillips: 820 (1951)
Pope: 115 (1975)
Hilliard: 328 (1977)
Karis & Ryding: 547 (1994)
Distribution & Notes:
Global
: Species ± 50, North and South America
Southern Africa
: *
Tagetes minuta
L., widespread weed throughout
References:
HILLIARD, O.M. 1977.
Compositae
in Natal
. University of Natal Press, Pietermaritzburg
KARIS, P.O. & RYDING, O. 1994. Tribes
Helenieae
and
Heliantheae
. In K. Bremer,
Asteraceae
, cladistics and classification
. Timber Press, Portland, Oregon
LINNAEUS, C. VON. 1753.
Species plantarum
. Laurentius Salvius, Stockholm
LINNAEUS, C. VON. 1754.
Genera plantarum
, edn 5. Laurentius Salvius, Stockholm
PHILLIPS, E.P. 1951. The genera of South African flowering plants, edn 2.
Memoirs of the Botanical Survey of South Africa
No. 25
POPE, G.V. 1975. The
Compositae
of the Flora zambesiaca area, 6 -
Helenieae
.
Kirkia
10
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