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Rubiaceae
Houstonia

not marked as a favorite taxon Houstonia rupestris Rafinesque. Common name: Cliff Diamond-flower. Phenology: May-Oct. Habitat: Limestone river bluffs and cliffs. Distribution: Largely restricted to limestone cliff-tops along the Kentucky River Palisades, the Cumberland River in KY and TN, and perhaps the Sequatchie Valley in TN.

Glossary (beta!)

Origin/Endemic status: Endemic

Taxonomy Comments: Not recently given credence, but this taxon appears to warrant recognition a distinctive taxonomic entity (perhaps better treated at varietal rank). Needing additional study.

Synonymy ⓘ: < Hedyotis nigricans (Lam.) Fosberg — C, Rogers (1987); < Hedyotis nigricans (Lam.) Fosberg var. nigricans — Tn, Terrell (1986), Terrell (1991), Turner (1995b); < Houstonia angustifolia Michx. — S; < Houstonia nigricans (Lam.) Fernald — F, G; < Stenaria nigricans (Lam.) Terrell var. nigricans — K4, Terrell (2001). Basionym: Houstonia rupestris Raf. 1820

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Heliophily ⓘ: 6

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image #1 of Houstonia rupestris© Brandon Corder source | Original Image ⭷
image #2 of Houstonia rupestris© Brandon Corder source | Original Image ⭷

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Horticultural Information

No horticultural data found for this taxon.

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