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Labiatae: Phyllostegia brevidens

J.F. Rock, 14000


Phyllostegia brevidens A.Gray

Original Distribution

US, Hawai’I and Maui

Extinction Data

Hawaii Bishop Museum = Extinct, Listed Extinct by WCMC 1996


Suberect; stem loosely foliose, nearly or almost glabrous. Leaves undivided, slender petiolate; Petiole 2-3.5 cm long; blade 10-13.5 x 5-7 cm, oblong-ovate to suborvate or sub rhombic, base cunate, apex acuminate with short mucros, margins serrate, glabrous except for few hairs on the veins at the lower leave surface.  Inflorescence 10-1.5 cm long, raceme, flowers in whorls of 6-20 flowers; bracts leaf-like, reflexed, lanceolate, 3-5 mm long, reflexes. Pedicels 1-1.6 cm long, slender, hispidulous, glands absent; Calyx 7-9 mm long, obconic, sparsly appressed-hispidulous to glabrous, sessile glands, 6-7 mm, long, margin sinuate or with very obtuse lobes. Corolla white, externally pubescent, tube 7-17 mm long, the lower lip broad and as long as the tube

Number of Specimens at Kew


Specimen Type (Y/N)


Kew Herbcat Barcode Number



J.F. Rock

Collector Number


Other Information

Known from various collections, the latter was collected in 1840. The species occurs uo to an altitude of 1000 m

Information Sources

Ayensu, E.S. and DeFilipps, R. A. (1978). Endangered and threatened plants of the united states. Smithsonian institution and World Wildlife fund.Sherff, E.E.(1935) Revision of Haplostachys, Phyllostegia, and Stenogyne. Bernice P.Bishop Museum Bulletin 136.Walter, K.S. and Gillett, H.J. (eds) (1998). 1997 IUCN Red List of Threatened Plants. Compiled by the World Conservation Monitoring Centre IUCN – The World Conservation Union, Gland, Switzerland and Cambridge, UK