Pritchardia munroi

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Pritchardia (pritch-AHR-dee-ah)
munroi (muhn-ROH-ee)
McBryde Garden. National Tropical Botanical Gardens, Koloa, Hawaii. Photo by Dr. P. Goltra
Scientific Classification
Genus: Pritchardia (pritch-AHR-dee-ah)
munroi (muhn-ROH-ee)
None set.
Native Continent
Habit: Solitary
Leaf type: Costapalmate
Survivability index
Common names
Hawaiian; Hāwane, Loulu, Noulu, Wāhane. Kamalo Pritchardia.

Habitat and Distribution

Hawaii, Endemic. Dry to moist forest, lee side of eastern Molokai and south side of [[ File:pritchardia-
Pritchardia munroi in Jardín Botánico Canario Viera y Clavijo. Photo:
Puu Kukui massif, West Maui, 600-1000 m. 1970 to 3280 feet. elevation.


To 5 m tall; proximal margins of petiole moderately fibrous; leaf blade strongly undulate, divided 1/2, abaxial surface incompletely covered with scattered lepidia, segment tips drooping; inflorescences composed of 1-5 panicles, shorter than petioles in flower and fruit, panicles branched to 2 orders, rachillae permanently clothed with thick, uniform, grayish brown hairs; fruits 22 x 20 mm, globose. (

Pritchardia munroi is another of the four Hawaiian species that is recorded from more than one island. The rachillae densely covered with uniform, grayish brown, permanent hairs and small fruits are diagnostic. (


"Apply a complete palm fertilizer with minor elements as directed on label. Be certain that sufficient magnesium and potassium is present in the fertilizer component. This is especially critical for loulus in pots. Magnesium and potassium deficiencies are two of the most serious nutritional disorders in palms. The deficiencies are characterized by bright yellowing (chlorotic) on leaf edges or streaking or the entire fronds yellowing. This can be difficult to reverse. Applications of Epsom salt, or magnesium sulfate (MgSO4), is good but does not last and is usually washed out of the soil in rainy periods. There are some very good slow release fertilizer spikes made for especially for palms on the market which contain a good balance of minor elements with magnesium and potassium. [1,2] Potted or younger loulu planted in the ground appreciate a foliar feeding of kelp or fish emulsion and Epsom salt monthly or bi-monthly." (Encyclopedia of Life curator Dr. David Eickhoff)

Loulu are prone to leaf rollers, red spider mites and sugar cane borers. Rats will eat its fruit. (Encyclopedia of Life curator Dr. David Eickhoff)

"Seems to a be a relatively cold sensitive species, and moderately finicky in California. No mature examples known (yet), but it should do OK here. (Geoff Stein)

Comments and Curiosities

Etymology: Pritchardia name is dedicated to William Thomas Pritchard (1829-1907), British official stationed in Fiji in the 19th Century, British counsul in Fiji, adventurer, and author of Polynesian Reminiscences in 1866. It was discovered in 1920 by Joseph F. Rock on the island of Moloka`i in Hawai`i, and named it after George C. Munro (1866-1963), manager of Moloka`i Ranch, ornithologist and botanist.

Phenology: Flower-Yellow. Small fruit are on fruit branchlets covered with dense grayish hairs. Fruit stalks are shorter than leaf stalks (petioles). ("Loulu--The Hawaiian Pritchardia", The Palm Journal #193, page 12.)

External Links


Phonetic spelling of Latin names by edric.

Special thanks to Geoff Stein, (Palmbob) for his hundreds of photos.

Special thanks to, Dr. John Dransfield, Dr. Bill Baker & team, for their volumes of information and photos.

Glossary of Palm Terms; Based on the glossary in Dransfield, J., N.W. Uhl, C.B. Asmussen-Lange, W.J. Baker, M.M. Harley & C.E. Lewis. 2008. Genera Palmarum - Evolution and Classification of the Palms. Royal Botanic Gardens, Kew. All images copyright of the artists and photographers (see images for credits).

Hodel, D. 2007.

Many Special Thanks to Ed Vaile for his long hours of tireless editing and numerous contributions.

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