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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 nameFamily
 Acanthus mollis Bear's breechesAcanthaceae
 Acanthus spinosusSpine acanthusAcanthaceae
 Agave sp.AgaveAgavaceae

 Angelonia sp. 

Summer snapdragonScrophulariaceae

 Argyranthemum sp.

ArgyranthemumAsteraceae
 Aruncus aethusifoliusAruncusRosaceae
 Aster sp. Aster

Asteraceae

 Baptisia sp. Baptisia

Fabaceae

 Boltonia asteroidesBoltonia

Asteraceae

 Calendula sp. 

Pot marigoldAsteraceae

 Campanula sp.

BellflowerCampanulaceae
 Coreopsis sp. TickseedAsteraceae
 Coreopsis verticillataThread leaved coreopsisAsteraceae
 Cosmos sp. Cosmos

Asteraceae

 Dahlia sp. Dahlia

Asterales

 Dianthus caryophyllus Carnation

Caryophyllaceae

 Echinacea purpureaPurple coneflowerAsteraceae
 Erodium reichardii Reichard's cranesbillGeraniaceae
 Erysimum sp.WallflowerBrassicaceae
 Erysimum variegatumWallflowerBrassicaceae
 Fuchsia sp. FuchsiaOnagraceae
 Geranium sp. GeraniumGeraniaceae
 Glandularia canadensisRose verbenaVerbenaceae
 Hebe sp.HebePlantaginaceae
 Heliopsis helianthoides Ox-eye daisyAsteraceae
 Herniaria sp. Rupturewort

Caryophyllaceae

 Heuchera sanguinea Coral bells

Saxifragaceae

 Hosta sp. Hosta liliy

Liliaceae

 Iberis sp.

CandytuftBrassicaceae
 Ipomoea batatasSweet potato
Convolvulaceae
 Lamium maculatum Spotted dead nettleLamiaceae
 Lavatera thuringiacaTree lavatera

Malvaceae

 Leucanthemum x superbumShasta daisyAsteraceae
 Lilium sp. LilyLiliaceae

 Monarda sp.

Bee balmLamiaceae

 Nemesia sp.

Nemesia

Scrophulariaceae

 Oenothera berlandieriMexican evening primrose

Onagraceae

 Pentstemon mensarumTiger beardtongueScrophulariaceae
 Petunia x hybridaPetuniaSolanaceae
 Phlox divaricataWoodland phoxPolemoniaceae
 Phlox paniculataGarden phloxPolemoniaceae
 Physalis franchettiChinese lanternSolanaceae
 Physocarpus opulifoliusNinebarkRosaceae
 Scabiosa sp.PincusionDipsacaceae
 Sedum sp.StonecropCrassulaceae
 Sorbaria sorbifolia False spirea

Rosaceae

 Stokesia laevis

StokesiaAsterceae

 Sutera cordata

BacopaScophulariaceae
 Verbascum sp.MulleinScrophulariaceae
 Verbena sp.VerbenaVerbenaceae
 Veronica sp. VeronicaScrophulariaceae
 Veronica spicata Spike speedwell

Scrophulariaceae

 Viola tricolor Johnny-jump-up

Violaceae

 

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