Koanophyllon polyodon
Diagnostic description 3
Koanophyllon polyodon (Urb.) R. King & H. Rob., Phytologia 32: 262. 1975.
Basionym: Eupatorium polyodon Urb.
Synonym: Eupatorium cordifolium sensu Bello, non Sw.
Erect or clambering shrub, scarcely branched, 1-1.5 m in length. Stems cylindrical, ferruginouspubescent, striate. Leaves opposite; blades 3-7 × 1.8-4.5 cm, chartaceous, ovate, 3-nerved from the base, the apex acute, the base obtuse, rounded or cordiform, the margins denticulate-serrate; upper surface scabrid, with the venation sunken; lower surface ferruginous-puberulous, with prominent venation; petioles 3-7 mm long, puberulous. Capitula numerous in terminal corymbs; peduncles 1-2.5 cm long, ferruginous-pubescent. Involucre campanulate, ca. 2.5 mm high; phyllaries green, in 1(2) series, of equal size, puberulous. Corollas whitish, tubular, ca. 3 mm long, the lobes papillose; stigmatic branches exserted. Achenes prismatic, ca. 2 mm long, pentagonal in cross section, papillose, light brown; pappus of numerous white setae, barbate, 3-3.5 mm long.
Phenology: Collected in flower and fruit from November to January and in June.
Status: Endemic to Puerto Rico, uncommon.
Selected Specimens Examined: Acevedo-Rdgz., P. 3744; 7063; 10526; 10735.
Distribution 4
Distribution: On slopes in forests or thickets in the zone of mogotes and serpentine.
Public forest:Maricao, Río Abajo, and Susúa.
Sources and Credits
- (c) Smithsonian Institution, National Museum of Natural History, Department of Botany, some rights reserved (CC BY-NC-SA), https://collections.nmnh.si.edu/services/media.php?env=botany&irn=10350760
- (c) Smithsonian Institution, National Museum of Natural History, Department of Botany, some rights reserved (CC BY-NC-SA), https://collections.nmnh.si.edu/services/media.php?env=botany&irn=10350761
- (c) Pedro Acevedo-Rodríguez, some rights reserved (CC BY-NC-SA), http://eol.org/data_objects/28435128
- (c) Pedro Acevedo-Rodríguez, some rights reserved (CC BY-NC-SA), http://eol.org/data_objects/28435694
