Big Island Volcano park flower ID?

[irrka]

This stuff looks like grass and was growing around an old crater. The stems go straight down into the ground and I didn’t feel any paeudobulbs at the bottom. It totally looks like a cattleya flower to me but the weedy leaves and no pseudo bulbs and growing out of the ground??!!

[DirtyCoconuts]

Arudinua gramanifolia

Bamboo orchid.

Awesome

[isurus79]

Originally Posted by DirtyCoconuts

Arudinua gramanifolia

Bamboo orchid.

Yep. One of the more pleasant and less destructive of Hawaii's invasive species. That said, I remember being so excited about seeing wild orchids when I moved to Hilo in 2002!

[voyager]

Invasive terrestrial orchids are very common in Puna [where the NP is located], and the rest of Big Island.
Probably the three most common ones are:

Arudinua gramanifolia,
Sphatoglottis plicata,
and
Phaius tankervilleae

They are seen almost everywhere in waste areas alongside the roads, sometimes covering large areas, got a bunch scattered around my yard, too.

[Ray]

The correct spelling of the genus is arundina.

[DirtyCoconuts]

yeah i apologize, i basically guess based on the way i say it and i am rarely correct LOL