Kenneth J. Sytsma

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Salvia majdae is a species of flowering plant in the family Lamiaceae, first described in 1967 as Zhumeria majdae. When placed in the genus Zhumeria, it was the only species. It is a subshrub endemic to southern Iran.

Cyanea st.-johnii (formerly Rollandia st.-johnii) is a rare species of flowering plant in the bellflower family known by the common name St. John's rollandia. It is endemic to Oahu, where it is known only from the Koʻolau Mountains. It is a federally listed endangered species of the United States. Like other Cyanea it is known as haha in Hawaiian. A 2007 report estimates 70 remaining individuals divided among seven occurrences in the upper elevations of the Koʻolau Mountains. The plant grows on top of ridges, in open, windy habitat within the cloud zone. The occurrences have been separated

Cyanea longiflora (formerly Rollandia longiflora) is a rare species of flowering plant in the bellflower family known by the common name ridge rollandia. It is endemic to Oahu where there are only three remaining occurrences in the northern Waianae Mountains for a total of under 300 individuals. It is a federally listed endangered species. Like other Cyanea it is known as haha in Hawaiian. This Hawaiian lobelioid is a shrub appearing palm-like in form and reaching 3 meters in maximum height. The inflorescence produces magenta flowers. The fruit is a berry which is purple to red when small and

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Cyanea koolauensis (formerly Rollandia angustifolia) is a rare species of flowering plant in the bellflower family known by the common names Palolo Valley rollandia and narrowleaf rollandia. It is native to Oahu, where it is known only from the Koʻolau Mountains. It is a federally listed endangered species. Like other Cyanea it is known as haha in Hawaiian. This Hawaiian lobelioid is a shrub reaching 1 to 1.5 meters in height. It bears dark red flowers. As of 2009 the plant was known from 10 small, scattered populations along the peaks of the Koʻolau Range, for a total of approximately 160

Cyanea humboldtiana (formerly Rollandia humboldtiana) is a rare species of flowering plant in the bellflower family known by the common name Oʻahu rollandia. It is native to Oʻahu, where it is known only from the Koʻolau Mountains. It is a federally listed endangered species. Like other Cyanea it is known as haha in Hawaiian. This Hawaiian lobelioid is a shrub reaching 1 to 2 meters in height. It bears magenta or white flowers. There are no more than 300 individuals remaining. They grow along the southern peaks of the Koʻolau Range in the cloud zone. The species is threatened by exotic plants

Cyanea crispa is a rare species of flowering plant known by the common names crimped rollandia and Koolau Range rollandia. It is endemic to Oahu, where there are no more than fifty individuals remaining in the Koʻolau Range. It is a federally listed endangered species of the United States. Like other Cyanea it is known as haha in Hawaiian.

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Lepechinia leucophylloides is a species of flowering plant in the family Lamiaceae, endemic to the State of Hidalgo in Mexico. It was first described in 1982 as Neoeplingia leucophylloides, which was the only species in the genus Neoeplingia. Neoeplingia was found to be embedded within Lepechinia, so the species was transferred to that genus in 2014.

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