|
(Last Modified On 6/4/2013)
|
|
|
|
(Last Modified On 6/4/2013)
|
|
Species
|
Austroeupatorium R. M. King & H. Robinson
|
|
PlaceOfPublication
|
Phytologia 19: 433. 1970
|
|
Note
|
TYPE: Eupatorium inulaefolium H.B.K.
|
|
Description
|
Erect perennial herbs or subshrubs, with few branches. Lower leaves opposite, upper leaves often subopposite or alternate, with short petioles; blades ovate to narrowly oblong, the margins usually crenulate to serrulate. Inflorescence a flattened corymbose panicle. Heads discoid with 9-23 florets; involucral bracts 12-18, mostly unequal, subimbricate, in 2-3 series, spreading at maturity; receptacle glabrous, plane or slightly convex; corolla narrowly funnelform with somewhat narrow tube, glands on outer surface, the cells of the corolla narrow with sinuous walls, the lobes without papillae or stomata; anther collars narrow with mostly quadrate or short-oblong cells, the walls with prominent annular thickenings, the exothecial cells quadrate, the anther appendage longer than wide; style base densely hirsute, not inflated, the style appendages linear, covered with short papillae. .Achenes prismatic with 5 ribs, usually with glands, without bristles; carpopodium distinctly enlarged, sometimes elongate, the cells enlarged with thin walls; pappus of 30-40 slender scabrous bristles in one series, persistent, the apical cells often enlarged and blunt. Pollen with short spines.
|
|
Habit
|
herbs or subshrubs
|
|
Distribution
|
The genus contains about 11 species found mainly in South America. One species has been collected in Panama and is also adventive in some parts of the Old World.
|
|
Reference
|
King, R. M. & H. Robinson. 1970. Studies in the Eupatorieae (Compositae). XXVI. A new genus Austroeupatorium. Phytologia 19: 433-435.
|
|
Tag
|
|
|
|
Project Name
|
|
Tag
|
|
|
|