Hawaii Kauilatree Plant Information

Hawaii Kauilatree grows in the following 1 states:


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More information about Hawaii Kauilatree may be found here, or from the US Department of Agriculture.

Alphitonia ponderosa is a species of flowering tree in the buckthorn family, Rhamnaceae, that is endemic to the Hawaiian Islands. It is locally known as kauila, as is the related Colubrina oppositifolia.

A. ponderosa is a medium to large tree, reaching 15-24 m (49-79 ft) high with a trunk 20-60 cm (7.9-23.6 in) in diameter.
The alternate leaves are obvate, 5-15 cm (2.0-5.9 in) long, and have 13-25-millimetre (0.51-0.98 in) petioles. The leaves are shiny, hairless, and green on the top, but are a dull light green with rust-colored veins on the bottom.
Flowers of A. ponderosa are polygamous and form cymes at the bases of leaves. They are 6 mm (0.24 in) in diameter; the five sepals are 1.5 mm (0.059 in) and cover five 0.75-millimetre (0.030 in) petals.
The fruit of A. ponderosa is a 15-millimetre (0.59 in) diameter drupe, which contain two to three seeds. The seeds are shiny, oblong, and have a red covering.
A. ponderosa inhabits dry, coastal mesic, and mixed mesic forests at elevations of 240-1,250 m (790-4,100 ft) on all main islands, but is rare except on Kauaʻi. It grows as a shrub on exposed ridges.
The reddish-brown wood of A. ponderosa is highly prized for its beauty, strength, and density. It was used as a replacement for metal by the Native Hawaiians, who made laʻau melomelo (fishing lures), pāhoa (daggers), ihe (short spears), pololū (long spears), ʻōʻō (digging sticks), hohoa (round kapa beaters) ʻiʻe kūkū (square kapa beaters), leiomano (shark tooth clubs), and kiʻi (tiki carvings) with it.
A. ponderosa is considered a vulnerable species by the IUCN because of its fragmented distribution and declining population. Major threats include rats, pigs, deer, competition with introduced species of plants, and wildfire.

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