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Leucas longifolia


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Genus Leucas

Herbs or subshrubs . Leaves entire or dentate . Verticillasters few to many flowered, widely spaced, uniform or reduced in size at end of branches. Calyx tubular to obconical , rarely dilated , 10-veined, straight or curved , truncate or oblique at throat , projected on posterior side; teeth 8-10, usually equal in size. Corolla usually white, rarely yellow, purple, brownish, or scarlet, 2-lipped, tube included ; upper lip straight, galeate , densely villous outside; lower lip longer, 3-lobed, middle lobe largest. Stamens ascending beneath upper lip of corolla, close together in pairs; anther cells 2, ovoid , divaricate , apex confluent , often orange. Style unequally 2-cleft at apex, posterior lobe short or obsolete . Nutlets ovoid, triquetrous , subtruncate at apex.

About 100 species: Africa, Asia, Australia, Pacific Islands, two naturalized in South America; eight species in China.[1]


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Similar Species

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Members of the genus Leucas

ZipcodeZoo has pages for 2 species, subspecies, varieties, forms, and cultivars in this genus:

L. aspera (Dronapushpi) · L. martinicensis (Whitewort)

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Further Reading

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  1. "Leucas". in Flora of China Vol. 17 Page 141. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at [back]
Last Revised: 2015-02-03