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Gentianaceae
Bartonia

Bartonia paniculata (Michaux) Muhlenberg ssp. texana (Correll) K.G. Mathews, Dunne, E. York, & Struwe. Common name: Texas Screwstem. Phenology: Aug-Oct; Oct-Nov. Habitat: Baygalls, acid seepages. Distribution: Ssp. texana is endemic to the West Gulf Coastal Plain of w. LA and e. TX, where it is more-or-less sympatric with ssp. paniculata (Mathews et al. 2009).

Glossary (beta!)

Origin/Endemic status: Endemic

Taxonomy Comments: The sympatry and similar habitat with its closest relative suggests that species rank may be warranted, despite the somewhat cryptic and overlapping morphological traits.

Synonymy ⓘ: = FNA14, K4, Mathews et al (2009); = Bartonia texana Correll — Tx, Correll (1966); < Bartonia paniculata (Michx.) Muhl. — GW2; < Bartonia paniculata (Michx.) Muhl. ssp. paniculata — Gillett (1959). Basionym: Bartonia texana Correll 1966

Links to other floras: = Bartonia paniculata ssp. texana - FNA14

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: OBL (taxonomic split from wetland indicator species)
  • Great Plains: OBL (taxonomic split from wetland indicator species)
  • Midwest: OBL (taxonomic split from wetland indicator species)
  • Northcentral & Northeast: OBL (taxonomic split from wetland indicator species)

Heliophily ⓘ: 4

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Horticultural Information

No horticultural data found for this taxon.