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Plant Profile

Texas Screwstem (Bartonia texana)

Bartonia texana in situ in Texas.

Photo Credit: Eric Keith

Global Rank: G2 - Imperiled
Legal Status: N/A
Family: Gentianaceae
State: LA, TX
Nature Serve ID: 143955
Lifeform: Forb/herb
Date Inducted in National Collection: 02/21/2003

Description:

Slender, erect, glabrous annual to 30 cm tall. Leaves are alternate and reduced to scales (ca. 1 mm long). Flowers are in slender, lax racemes or panicles and very small (2.5 mm long) and whitish.

Where is Texas Screwstem (Bartonia texana) located in the wild?

Habitat:

Along wooded streams, in bogs, and creek bottoms in swampy tupelo (Nyssa aquatica) forests and bay-gall (Ilex coriacea) thickets. Often on elevated clumps of sphagnum moss or other organic matter. (NatureServe) Also in and around acid seeps in pine-oak forests on gemtle slopes. (Jackie M. Poole, et al, 2007)

Distribution:

East Texas: Angelina, Hardin, Jasper, Nacogdoches, Newton, Polk, San Augustine, San Jacinto & Tyler Counties. Louisiana: West Gulf Coastal Plain parishes.

States & Provinces:

Texas Screwstem can be found in Louisiana, Texas

Which CPC Partners conserve Texas Screwstem (Bartonia texana)?

Mercer Botanic Gardens

Not Sponsored

Assigned 06/09/17

CPC's Plant Sponsorship Program provides long term stewardship of rare plants in our National Collection. We are so grateful for all our donors who have made the Plant Sponsorship Program so successful. We are in the process of acknowledging all our wonderful plant sponsorship donors on our website. This is a work in progress and will be updated regularly.

Conservation Actions

Nature Serve Biotics

05/02/2017

There are about 15 scattered occurrences known, in eastern Texas and Louisiana, containing a total of fewer than 1,000 individuals. The species' habitat is subject to several threats including logging, development, grazing, and agriculture.

Dave Berkshire

01/01/2010

Loss of habitat due to logging, housing development, grazing, agriculture, etc.

Dave Berkshire

01/01/2010

Not Available

Dave Berkshire

01/01/2010

Not Available

Dave Berkshire

01/01/2010

Not Available

Dave Berkshire

01/01/2010

Not Available

Dave Berkshire

01/01/2010

Not Available