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Arizona - New Mexico Chapter
Consortium of Midwest Herbaria
Intermountain Region Herbaria Network (IRHN)
Mid-Atlantic Herbaria
North American Network of Small Herbaria
Northern Great Plains Herbaria
Madrean Archipelago Biodiversity Assessment (MABA) - Flora
Red de Herbarios del Noroeste de México (northern Mexico)
SERNEC - Southeastern USA
Ageratina adenophora
(Spreng.) R.M.King & H.Rob.
(redirected from:
Eupatorium glandulosum
H.B. & K.)
Family:
Asteraceae
Crofton Weed
[
Eupatorium adenophorum
Hort.Berol. ex Kunth,
more
Eupatorium glandulosum
H.B. & K.
]
FNA
Resources
Guy L. Nesom in Flora of North America (vol. 21)
Subshrubs,
50-220 cm.
Stems
(usually purplish when young) erect, stipitate-glandular.
Leaves
opposite; petioles 10-25 mm; blades (abaxially purple) ovate-lanceolate or ovate-deltate to lanceolate-ovate, (1.5-)2.5-5.5(-8) × 1.5-4(-6) cm, bases cuneate to obtuse or nearly truncate, margins serrate, apices acute to acuminate, abaxial faces stipitate- to sessile-glandular.
Heads
clustered.
Peduncles
5-12 mm, densely stipitate-glandular and sometimes also sparsely viscid-puberulent.
Involucres
3.5-4 mm.
Phyllaries:
apices acute, abaxial faces stipitate-glandular.
Corollas
white, pink-tinged, lobes sparsely hispidulous.
Cypselae
glabrous.
2
n
= 51.
Flowering Mar-Aug(-Sep). Stream margins, ditches, road embankments, hillsides; 400-900 m; intoduced; Calif.; Mexico; also introduced in Europe, Pacific Islands (New Zealand).
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This project made possible by
National Science Foundation Award EF 1702516
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