The spike grows in a spiral pattern and forms a protective hood called the spathe.
From the post-gazette.com
Typically, five to 12 beetles will be within the spathe throughout the night.
From the en.wikipedia.org
Anthurium stems grow 15-20 inches tall, depending on the size of the spathe.
From the dailynews.com
The spathe is striped in white and brown, again, not an unusual arrangement.
From the independent.co.uk
Inflorescences are interfoliar, lacking a covering spathe and shorter than the leaves.
From the en.wikipedia.org
Still closed, an Arisaema flavum's greenish yellow spathe is covered by a yellow hood.
From the sfgate.com
Sadly, a spathe loses its allure once it has been done over by molluscs.
From the independent.co.uk
In the case of the genus Arisaema, the spathe is the cause of both curiosity and wonder.
From the sfgate.com
If you put a finger inside this spathe, you'd come away without it.
From the independent.co.uk
More examples
A conspicuous bract surrounding or subtending a spadix or other inflorescence
In botany, a bract is a modified or specialized leaf, especially one associated with a reproductive structure such as a flower, inflorescence axis, or cone scale. Bracts are often (but not always) different from foliage leaves, for example being smaller, larger, or of a different color or texture.
A large bract that envelops or subtends a whole inflorescence, typically a spadix
A large bract, sometimes highly colored, surrounding or enclosing a spadix. The spathe flower is characteristic of the aroids, such as Anthurium and Spathiphyllum.
A large bract at the base of a spadix, which it encloses (at least initially) as a sheath.
The bract accompanying the cluster of flowers in a spadix.
(Arum Family) A leaf-like sheath enfolding the spadix.
One or two bracts enclosing a flower cluster (especially a spadix)
The papery covering of the emerging bud which eventually covers the ovary of the iris as the flower emerges from bud stage.