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Delissea undulata
Also called Undulata Delissea
Delissea undulata is a rare Hawaiian palm-like tree in the bellflower family, with an unbranched trunk and a rosette of wavy-edged leaves at the top. It is reported extinct in the wild, with only a single cultivated plant recorded, so there is little practical growing guidance for home gardeners.
Delissea undulata (common name ʻoha) is an extremely rare species of "palmoid" or "Corner model tree" (a pachycaulous unbranched tree superficially resembling a palm or cycad) formerly occurring on the Big Island of Hawai'i. It is cited as extinct by the IUCN Red List and Plants of the World Online, but is also reported in cultivation from a single surviving plant found in 1992. It is in the subfamily Lobelioideae of the family Campanulaceae. The tree is up to 11 m (36 ft) in height but only 5 cm (2.0 in) in diameter at breast height (DBH). It never branches. The terminal rosette of wavey-edged leaves is only 45 cm (18 in) across. The flowers are tubular and straight.
Delissea argutidentata · Leechleaf Delissea · Kauai delissea · Koolau Range delissea
Text excerpted from the Wikipedia article Delissea undulata by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
