Kadua st-johnii
species of plant

Kadua st-johnii (formerly Hedyotis st-johnii) is a rare species of flowering plant in the coffee family known by the common name Nā Pali beach starviolet. It is endemic to Hawaii, where it is known only from the Nā Pali coast of Kauai. It is a federally listed endangered species of the United States.
This is a succulent perennial herb with squared stems that trail along the ground. The leaves are fleshy and mostly concentrated low on the stem. The flowers are borne in clusters. Each has a tubular corolla of green petals.
This plant occurs on north-facing cliffs above the beaches of the Nā Pali coast on Kauai. It grows low enough to be regularly misted by sea spray. Other plants in the habitat include naio (Myoporum sandwicense), kawelu (Eragrostis variabilis), ohelo kai (Lycium sandwicense), pili (Heteropogon contortus), ahinahina (Artemisia australis), and akoko (Chamaesyce celastroides).
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Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Jul 28, 2025. The linked authority identifier is Q6345737. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Kadua st-johnii” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.