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Images of symptoms caused by Rhodococcus fascians on different hosts

These images are intended for growers of herbaceous plants to help determine if Rhodococcus fascians infections are present. Please be cautioned that growth regulators, repeated clipping, and various other practices can cause similar symptoms, and a suspect plant should be sent to a diagnostic laboratory for confirmation.

The following table has links to images of symptoms caused by Rhodococcus fascians on different hosts*. Please check back often for new images.

Scientific name	Common name	Family
Acanthus mollis	Bear's breeches	Acanthaceae
Argyranthemum sp.	Argyranthemum	Asteraceae
Aruncus aethusifolius	Aruncus	Rosaceae
Boltonia asteroides	Boltonia	Asteraceae
Campanula sp.	Bellflower	Campanulaceae
Coreopsis verticillata	Thread leaved coreopsis	Asteraceae
Dianthus caryophyllus	Carnation	Caryophyllaceae
Erodium reichardii	Reichard's cranesbill	Geraniaceae
Erysimum variegatum	Wallflower	Brassicaceae
Heliopsis helianthoides	Ox-eye daisy	Asteraceae
Heuchera sanguinea	Coral bells	Saxifragaceae
Hosta sp.	Hosta lily	Liliaceae
Iberis sp.	Candytuft	Brassicaceae
Lamium maculatum	Spotted dead nettle	Lamiaceae
Lavatera thuringiaca	Tree lavatera	Malvaceae
Leucanthemum x superbum	Shasta daisy	Asteraceae
Lilium sp.	Lily	Liliaceae
Monarda sp.	Bee balm	Lamiaceae
Nemesia sp.	Nemesia	Scrophulariaceae
Oenothera berlandieri	Mexican evening primrose	Onagraceae
Petunia x hybrida	Petunia	Solanaceae
Phlox paniculata	Garden phlox	Polemoniaceae
Physocarpus opulifolius	Ninebark	Rosaceae
Sorbaria sorbifolia	False spiraea	Rosaceae
Verbena sp.	Verbena	Verbenaceae
Veronica sp.	Veronica	Scrophulariaceae
Veronica spicata	Spike speedwell	Scrophulariaceae
Viola tricolor	Johnny-jump-up	Violaceae

*This is not an exhaustive list of Rhodococcus fascians hosts.