Overview
Distribution
Localities documented in Tropicos sources
United States (North America)
Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
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Anonymous. 1986. List-Based Rec., Soil Conserv. Serv., U.S.D.A. Database of the U.S.D.A., Beltsville.
http://www.tropicos.org/Reference/1103
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Correll, D. S. & M. C. Johnston. 1970. Man. Vasc. Pl. Texas i–xv, 1–1881. The University of Texas at Dallas, Richardson.
http://www.tropicos.org/Reference/1493
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Godfrey, R. K. & J. W. Wooten. 1981. Aquatic Wetland Pl. S.E. U.S. Dicot. 933 pp. Univ. Georgia Press, Athens.
http://www.tropicos.org/Reference/1711
© Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO 63110 USA
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Missouri Botanical Garden
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National Distribution
Mexico
Origin: Native
Regularity: Regularly occurring
Currently: Present
Confidence: Confident
Type of Residency: Year-round
United States
Origin: Native
Regularity: Regularly occurring
Currently: Present
Confidence: Confident
Type of Residency: Year-round
© NatureServe
Source:
NatureServe
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Global Range: Known from Val Verde and Zapata counties, Texas, southern Louisiana, and northern Mexico (Nuevo Leon, Sonora, and Coahuila).
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Source:
NatureServe
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Ecology
Habitat
Comments: Wet, silty clay loams on streamsides, in creekbeds, irrigation channels, and roadside drainage ditches.
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NatureServe
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Population Biology
Number of Occurrences
Note: For many non-migratory species, occurrences are roughly equivalent to populations.
Estimated Number of Occurrences: 6 - 20
Comments: Fewer than 15 extant element occurrences, many historic occurrences which have not been verified recently.
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NatureServe
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Conservation
Conservation Status
National NatureServe Conservation Status
Mexico
Rounded National Status Rank: N1 - Critically Imperiled
United States
Rounded National Status Rank: N2 - Imperiled
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NatureServe
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NatureServe Conservation Status
Rounded Global Status Rank: G2 - Imperiled
Reasons: A fairly widespread but rarely encountered species of wetland habitats. Its range is from southern Louisiana as to southern Texas and northern Mexico, but fewer than 15 occurrences are known, and many historic populations have not been verified recently. Its tendency to grow in habitats subject to disturbance and human use (roadside and irrigation ditches, creekbeds, etc.) makes each isolated population highly vulnerable.
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NatureServe
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Threats
Comments: Wetland habitats in this xeric region are subject to a variety of threats.
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NatureServe
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Management
Biological Research Needs: Population biology, habitat needs.
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NatureServe
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Wikipedia
Physostegia correllii
Physostegia correllii is a species of flowering plant in the mint family known by the common name Correll's false dragonhead. It is native to northern Mexico, as well as Texas and Louisiana in the United States. Most occurrences are historical and have not been seen recently. Today it is known from one location in Travis County, Texas, and two or three locations in Louisiana, and its current distribution in Mexico is unknown.[1]
This rhizomatous[1] perennial herb may reach heights over 2 meters. It produces spikes of flowers in June through September. The flowers are purple with darker streaks.[2] The flowers are pollinated by bumblebees.[1]
This plant is a wetland species that can be found today in wet, disturbed areas such as drainage ditches.[1]
References
Source:
Wikipedia
Unreviewed
Names and Taxonomy
Taxonomy
Comments: A good species in a genus of about a dozen species from Canada to Mexico.
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NatureServe
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