Nototrichium divaricatum
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 Wilkesia gymnoxiphium growing in Limahuli Garden and Preserve
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| Nototrichium divaricatum |
Nototrichium divaricatum, also known as Na Pali rockwort or kului (Hawaiian), is a rare perennial shrub in the Nototrichium genus, native to northwestern Kauai, Hawaii in dry to moist shrublands on north-facing cliffs and ridges.
N. divaricatum are densely branching shrubs 0.3-2 meters tall, with most parts covered with silvery-white hairs. Leaves are oppositely arranged, with leaf blades 3-7.5 cm long and 1-4.6 cm wide. Inflorescences bear several spikes, and are terminal and usually solitary, rarely 2 or 3 together, and compoundly branched. Each spike bears 8-30 small flowers.
This species was first described in 1996. There are possibly fewer than 3,000 N. divaricatum plants in existence.
