''Chromolaena trigonocarpa'' is a rare
Caribbean
The Caribbean (, ) ( es, El Caribe; french: la Caraïbe; ht, Karayib; nl, De Caraïben) is a region of the Americas that consists of the Caribbean Sea, its islands (some surrounded by the Caribbean Sea and some bordering both the Caribbean Se ...
species of
flowering shrub
A shrub (often also called a bush) is a small-to-medium-sized perennial woody plant. Unlike herbaceous plants, shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. They are distinguished from trees ...
in the family
Asteraceae
The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae w ...
. It is found only the
Island of Dominica
Dominica is an island in the Caribbean Sea, located about halfway between the French islands of Guadeloupe (to the north) and Martinique (to the south). Its coordinates are 15 25 N, 61 20 W. It is known as "The Nature Island of the Caribbean" d ...
in the
Lesser Antilles
The Lesser Antilles ( es, link=no, Antillas Menores; french: link=no, Petites Antilles; pap, Antias Menor; nl, Kleine Antillen) are a group of islands in the Caribbean Sea. Most of them are part of a long, partially volcanic island arc betwe ...
.
[Grisebach, August Heinrich Rudolf 1861. Flora of the British West Indian Islands 357-358]
/ref>[Grisebach, August Heinrich Rudolf 1861. Flora of the British West Indian Islands 359]
description in English, as ''Eupatorium trigonocarpum''King, Robert Merrill & Robinson, Harold Ernest 1970. Phytologia 20: 207
/ref>
''Chromolaena trigonocarpa'' is a branching shrub or subshrub with curved hairs on the stem. It has opposite leaves with teeth and a pointed tip. Flower heads
A pseudanthium (Greek for "false flower"; ) is an inflorescence that resembles a flower. The word is sometimes used for other structures that are neither a true flower nor a true inflorescence. Examples of pseudanthia include flower heads, compos ...
are displayed in a flat-topped array.[
]
References
External links
photo of herbarium specimen at Missouri Botanical Garden, collected in Dominica, type specimen of ''Eupatorium trigonocarpum/Chromolaena trigonocarpa''
trigonocarpa
Flora of Dominica
Plants described in 1861
Taxa named by August Grisebach
{{Eupatorieae-stub