Eustoma russellianum

Eustoma russellianum, is a species of flowering plant in the gentian family. Its previous binomial name was Eustoma grandiflorum. Common names include Texas bluebells, Texas bluebell, bluebell, showy prairie gentian, prairie gentian,[1] and Lisianthus.

Eustoma russellianum
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Gentianales
Family: Gentianaceae
Genus: Eustoma
Species:
E. russellianum
Binomial name
Eustoma russellianum
(Hook.) G.Don

There is a cultivar, 'Bolero Deep Blue'.[2]

Description

Eustoma russellianum has blue-green waxy leaves and showy bell shaped flowers in blue pink or white each borne singly on an upright plant. Depending on where it grows it may present as an annual, biennial or perennial plant.

Distribution and habitat

It is found primarily in the Great Plains region of North America, from Nebraska southeast to Wyoming, and south to Texas and Mexico.[1] Due to its popularity and the frequency it's picked, it has been unable to naturally reseed itself in its native distribution.[1]

It prefers moist, sandy soils and often grows near streams or creek-beds.[1]

Cultivation

Texas bluebell is a popular garden flower, and has been cultivated in Japan for over 70 years.[1] Many varieties, including those with double petals, or a variety of colored flowers, have been developed.[1]

Diseases


Fungal diseases
Botrytis blight Botrytis cinerea
Cercospora leaf spot Cercospora eustomae
Curvularia blotch Curvularia sp.
Downy mildew Peronospora chlorae
Fusarium stem rot Fusarium solani

Fusarium avenaceum

Fusarium wilt Fusarium oxysporum
Phyllosticta leaf spot Phyllosticta sp.
Pythium root rot Pythium sp.
Rhizoctonia stem rot Rhizoctonia solani
Sclerophoma stem blight Sclerophoma eustomis

Viral and viroid diseases
Viral and viroid diseases
Bean yellow mosaic genus Potyvirus, Bean yellow mosaic virus (BYMV)
Cucumber mosaic genus Cucumovirus, Cucumber mosaic virus (CMV)
Impatiens necrotic spot genus Tospovirus, Impatiens necrotic spot virus (INSV)
Lisianthus necrosis Lisianthus necrosis virus (LNV)
Tobacco mosaic genus Tobamovirus, Tobacco mosaic virus (TMV)
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References
  1. "Eustoma exaltatum ssp. russellianum". Native Plant Database. Lady Bird Johnson Wildflower Center, University of Texas at Austin.
  2. "Eustoma russellianum: Novelty Plant of the Month for May 2002". Flower Council of Holland. 2002-05-01. Archived from the original on 2007-10-07.


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