Shirey worries about Brighamia insignis, known commonly as alula, or cabbage on a stick.
From the latimes.com
Alula lives in layers, such as this graphite-hued cotton oxford worn over a screen-printed beige tee.
From the washingtonpost.com
Botanical garden botanists have rappelled down the vertical cliffs to hand-pollinate alula plants in situ.
From the sfgate.com
However, alula feathers are definitely an aid to slow flight.
From the en.wikipedia.org
One of Limahuli's conservation success stories is the alula, an ungainly plant that looks like a cabbage on a big stick.
From the kentucky.com
The thumb remains free, like the alula that helps guide bird flight, but other fingers would be fused together.
From the newscientist.com
Among the garden's conservation and research triumphs is the alula, on display at both the McBryde and Limahuli gardens on Kauai.
From the chron.com
By manipulating its thumb to create a gap between the alula and the rest of the wing, a bird can avoid stalling when flying at low speeds or landing.
From the en.wikipedia.org
More examples
Scalelike structure between the base of the wing and the halter of a two-winged fly
Bastard wing: tuft of small stiff feathers on the first digit of a bird's wing
The alula, or bastard wing, is a small projection on the anterior edge of the wing of modern (and some ancient) birds. The alula is the freely moving first digit, a bird's "thumb," and is typically covered with three to five small feathers, with the exact number depending on the species. ...
Alula was an ornithological magazine published in Finland. Initially it was published in both Finnish and English, but the final volumes were published in English only. It was aimed primarily at birders with an interest in the birds of the Western Palearctic. ...
A small group of feathers attached to the first "finger" (at the bend) of the wing. Their function is to reduce turbulence and drag, and also assist with breaking and steering. Purple Martins have three alula feathers on each wing.
A small winglike group of feathers at the bend of the wing, supported by the anteriormost digit
These are the three feathers covering the pollex. They are thought to help regulate flight.
N. - part of a bird's wing, corresponding to thumb.