Ageratina altissima


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Related to Ageratina altissima: Eupatorium rugosum, white snakeroot
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Synonyms for Ageratina altissima

American herb having flat-topped clusters of small white flower heads

References in periodicals archive ?
Representative herbaceous plants include Ageratina altissima, white snakeroot; Galium aparine, bedstraw: Geum canadense, white avens; Poa pratensis, Kentucky bluegrass; Rudbeckia laciniata, cutleaf coneflower; and Viola sororia, sister violet--all common to abundant.
Ageratina altissima occurs in the forest outside of rockhouses (Wofford & Patrick, 1980).
saccharum 4 X X X X Actaea pachypoda* 7* X* X* X* Aesculus glabra 5 X X X X Ageratina altissima 2 X X X X Agrimonia parviflora 4 X X X ALLIARTA PETIOLATA -- X Allium tricoccum* 7* X* X* Anemone acutiloba* 8* X* X* X* Antennaria neglecta 3 X X Arisaema dracontium 5 X Arisaema triphyllum 4 X X X Asarum canadense 5 X X Asimina triloba 6 X X X X Aspenium platyneuron 3 X BERBER1S THUNBERGII -- X Boehmeria cylindrica 3 X X X X Brachyelytrum erectum 6 X Campanulastrum americanum 4 X Campsis radicans 1 X Cardamine concatenata 5 X Carex grayi 5 X Carex jamesii 4 X Carex laxiflora* 7* X* X* X* Carex tribuloides var.
Seasonal creek.--Herbaceous species growing on the creek bank or creek bed included Ageratina altissima, Ambrosia trifida, Campanulastrum americanum, Glyceria striata, Hackelia virginiana, Laportea canadensis, Leersia virginica, Lobelia siphilitica, Lysimachia nummularia, Mentha spicata, Persicaria longiseta, Persicaria maculosa, Persicaria punctata var.
petiolata, with other common herbs being Amphicarpaea bracteata, Geranium maculatum, Circaea lutetiana, Ageratina altissima, and Parthenocissus spp.
* Achillea millefolium L.: P39824 Ageratina altissima (L.) R.M.