Colubrina

Shrub on coarse gravelly volcanic soil of large, wide, braided sheet-wash arroyo draining coastal plain between rhyolite hills, with Diphysa occidentalis, Caesalpinia palmeri, Acacia willardiana, Citharexylum flabellifolium, Melochia speciosa

Rare, endangered species endemic to the Hawaiian Islands. Found only on Oahu and leeward Hawaii. Elevation of this photo around 1835 ft./559 m. This was a young plant, 1.5 m high.

Shrub on coarse gravelly volcanic soil of large, wide, braided sheet-wash arroyo draining coastal plain between rhyolite hills, with Diphysa occidentalis, Caesalpinia palmeri, Acacia willardiana, Citharexylum flabellifolium, Melochia speciosa

Shrub on coarse gravelly volcanic soil of large, wide, braided sheet-wash arroyo draining coastal plain between rhyolite hills, with Diphysa occidentalis, Caesalpinia palmeri, Acacia willardiana, Citharexylum flabellifolium, Melochia speciosa

Shrub on coarse gravelly volcanic soil of large, wide, braided sheet-wash arroyo draining coastal plain between rhyolite hills, with Diphysa occidentalis, Caesalpinia palmeri, Acacia willardiana, Citharexylum flabellifolium, Melochia speciosa

Shrub on coarse gravelly volcanic soil of large, wide, braided sheet-wash arroyo draining coastal plain between rhyolite hills, with Diphysa occidentalis, Caesalpinia palmeri, Acacia willardiana, Citharexylum flabellifolium, Melochia speciosa

Rare, endangered species endemic to the Hawaiian Islands. Found only on Oahu and leeward Hawaii. Elevation of this photo around 1835 ft./559 m. This was a young plant, 1.5 m high.