scorpioid

American Heritage® Dictionary of the English Language, Fourth Edition

1. adj. Of, relating to, or resembling a scorpion.
2. adj. Botany Like the tail of a scorpion; circinate: a scorpioid cyme.

Century Dictionary and Cyclopedia

1. In zoology:
2. Resembling or related to a scorpion; belonging to the Scorpionida.
3. Rolled over or curled like the tail of a scorpion; cincinnal; coiled in a flat spiral.
4. In botany, curved or circinate at the end, like the tail of a scorpion; rolled up toward one side in the manner of a crozier, unrolling as the flowers expand, as in some of the Boraginaceæ. See cut in next column.

Wiktionary

1. adj. Of, pertaining to, or appearing like a scorpion.
2. adj. botany Resembling a scorpion's tail, as in a scorpioid cyme; circinate.

GNU Webster's 1913

1. adj. Having the inflorescence curved or circinate at the end, like a scorpion's tail.