Biancaea decapetala, a thorny evergreen shrub of India
Uncaria tomentosa, a plant species found in the tropical jungles of South and Central America
Acacia plumosa, a medicinal plant species native to Brazil
Used other than figuratively or idiomatically: see cat, claw.
Grevillea alpina, a shrub species native to Australia
Carpobrotus edulis, or uña de gato (Spanish: "cat's claw"), a plant species in the Aizoaceae family
Mimosa nuttallii (formerly Schrankia nuttalli), a plant native to the Midwestern United States
Dolichandra unguis-cati, or cat's claw creeper, a Central American climbing vine of the Bignoniaceae family
Uncaria rhynchophylla, a plant species used in traditional Chinese medicine
bayag-kambing (Caesalpinia crista)
Martynia annua, a plant species endemic to Brazil
Senegalia greggii, formerly Acacia greggii, a tree species native to the southwestern United States and northern Mexico
Uncaria guianensis, a plant species found in Guyana
Some plants of the genus Impatiens; specifically, the touch-me-not balsam or yellow balsam (Impatiens noli-tangere).
The squirting cucumber (Ecballium elaterium).
Any of various plants with fruits or seed capsules that, when ripe, burst open and discharge their seeds when touched, or with leaves that fold and droop when touched.
Someone (such as a disagreeable person) or something (such as a painful experience or taboo topic) to be avoided or not interfered with.
A warning to avoid or not to interfere.
A picture depicting Jesus appearing to Mary Magdalene shortly after his resurrection from the dead (see the etymology).