- Conservation status: Apparently secure
- Distribution: O’ahu (Wai’anae Mountains)
- Date photographed: 3/19/2015
- *Identification: : Form– Treelets 1-4 m tall Leaves– linear to oblanceolate, blades 15-36 cm long, 0.8-3.1 cm wide. Flower– calyx lobes triangular, 3-17 mm long, 1-3 mm wide; corolla various shades of pink, subbilabiate, 43-73 mm long.
- Phylogenetic comments: T. kaalae is firmly nested within the Trematolobelia clade. It is sister to T. macrostacys and all the taxa found on the newer and younger islands.
- My notes: Aside from location, Trematolobelia kaalae differs from the other 2 species of Trematolobelia found on O’ahu by it’s flowering: it tends to bloom in the spring and early summer. Trematolobelia in general is one of the few native lobeliads I’ve seen with self-sustaining populations: one can come across seedlings where populations are established.
- Additional Photos:
*From Manual of the Flowering Plants of Hawai’i