Priority invasive and high-risk species

Species briefs

One page per species: when it has been recorded fruiting, where it grows by island and elevation, how its seed travels, and what that means for the timing of control work.

The state of the evidence, stated first

Of 38 priority species, 16 now have a Hawaiian fruiting calendar — built from field observations where someone photographed the plant and recorded what it was doing. Not one has enough dated Hawaiian herbarium specimens to do the same. 6 can only borrow the shape of their cycle from specimens collected elsewhere, and for 16 nothing can honestly be said yet.

See the field-observation coverage → — how many records exist per species, when they were made, and on which islands.