Touchardia latifolia

Touchardia latifolia, commonly known as olonā in Hawaiian, is a species of flowering shrub in the nettle family, Urticaceae. T. latifolia is endemic to Hawaii and inhabits mesic valleys and wet forests at elevations of 70–1,200 m (230–3,940 ft).[2] Typical to many Hawaiian plants, the olonā does not have the stinging hairs of its mainland cousins. It is found on all the main Hawaiian islands except Kahoʻolawe and Niʻihau. Olonā has alternate leaves whose shape greatly varies depending upon the environment from thin lancolate to broad elliptic. The large range in leaf variation once divided T. latifolia into more than 10 species, which are currently considered to be one. Olonā typically flowers between the months of May through December [3] The female flowers are borne on branching cymes which become fleshy orange berry-like achenes, and the male flowers are white. Olonā is easily cultivated (83% germination rate),[4] and sprouts readily from cuttings, but does not transplant well due to its fragile roots.[5]

Touchardia latifolia
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Rosales
Family: Urticaceae
Genus: Touchardia
Species:
T. latifolia
Binomial name
Touchardia latifolia

Cultural use
Single olonā fiber (0.3 mm wide)

Ancient Hawaiians cultivated olonā for cordage, and it was considered one of the finest grades of fibers. Its intertwining strands makes it one of the strongest natural fibers on earth. Olonā was used extensively in Hawaiian weaponry: as cordage on the wrist loop of pāhoa (daggers); for fastening shark teeth on the heads of leiomano; and as the cord in "tripping weapons", such as the pīkoi.[6] Olonā was also used for fishing nets and carrying baskets called kōkō. The fine cordage was once sought by many people around the world, like climbers and sailors, because of its incomparable strength and durability.[7] Olonā was typically cultivated near an upland stream area which was used to soak the newly harvested fibers between 24–72 hours before placing it on long board and using a scraper (sometimes made out of shell or turtle) to remove the excess outer bark. Once the olonā was prepared and dry, there was so much fiber in the bark that it peels off in sheets of ribbon. The outer bark of olonā was typically stripped in the uplands and hung around necks as lei.[8]

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See also

References
  1. "Taxon: Touchardia latifolia Gaudich". Germplasm Resources Information Network. United States Department of Agriculture. 2008-08-12. Retrieved 2009-03-01.
  2. "olona". Hawaiian Ethnobotany Database. Bernice P. Bishop Museum. Retrieved 2009-03-01.
  3. Link text, Herbarium Vouchers.
  4. Loeffler, Westeria (2003). "Genetic diversity and biogeography of the Hawaiian cordage plant, olonā (Toucharida latifolia; Urticaceae), based on RAPD marker". Biochemical Systematics and Ecology. 31 (11): 1323–1335. doi:10.1016/s0305-1978(03)00099-1.
  5. Lilleeng-Rosenberger, Kerin (2005). Growing Hawaiʻi's Native Plants. Mutual Publishing. ISBN 1-56647-716-6.
  6. Krauss, Beatrice H. (1993). Plants in Hawaiian Culture. University of Hawaii Press. ISBN 0-8248-1225-5.
  7. Wagner, Warren (1990). Manual of the Flowering Plants of Hawaii. 2. University of Hawaii Press. ISBN 0-8248-1152-6.
  8. Kamakau, Samuel (1976). The Works of the People of Old: Na Hana A Ka Poʻe Kahiko. Bishop Museum Press.
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