Overview
Distribution
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Small, J. K. 1933. Man. S.E. Fl. i–xxii, 1–1554. Published by the Author, New York.
http://www.tropicos.org/Reference/1515
© Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO 63110 USA
Source:
Missouri Botanical Garden
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National Distribution
United States
Origin: Native
Regularity: Regularly occurring
Currently: Present
Confidence: Confident
Type of Residency: Year-round
© NatureServe
Source:
NatureServe
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Physical Description
Type Information
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Preparation: Pressed specimen
Collector(s): E. Palmer
Year Collected: 1880
Locality: Saltillo, Caracol Mountains., Coahuila, Mexico, North America
- Isolectotype: Watson, S. 1883. Proc. Amer. Acad. Arts. 18: 97.
© Smithsonian Institution, National Museum of Natural History, Department of Botany
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Conservation
Conservation Status
National NatureServe Conservation Status
United States
Rounded National Status Rank: N2 - Imperiled
© NatureServe
Source:
NatureServe
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NatureServe Conservation Status
Rounded Global Status Rank: T2 - Imperiled
Reasons: Endemic to southern Texas; recently described (Turner, 1995) and apparently still poorly known.
© NatureServe
Source:
NatureServe
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Names and Taxonomy
Taxonomy
Comments: Narrowly endemic variety, known only from southern Texas, of a widespread, polymorphic species. Differs from typical Hedyotis nigricans in having the mature calyces markedly papillose throughout. Turner (1995, Phytologia 79: 12-21) provides original description, plus overview of classification of the species group. Recognized by Kartesz (1999, Floristic Synthesis).
© NatureServe
Source:
NatureServe
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