#spineless

• Anoplous — Lacking natural weapons, such as thorns, spines, horns, spurs, stings, or sharp mandibles; an organism, insect, or anatomical structure that is defensively vulnerable but structurally adapted for parasitic or passive lifestyles. In taxonomy, the term often describes species or genera characterized by a smooth, outwardly harmless morphology but structurally equipped with alternative survival or attachment mechanisms.
• Astrophytum asterias — An endemic species of small succulent plants within the Astrophytum genus (Cactaceae family), with a globose, flattened stem completely lacking spines, typically divided into exactly 8 flat, regular ribs. Its greenish-grey surface is decorated with numerous trichomes (microscopic white dots made of tiny hairs), featuring large, woolly areoles in the center from which yellow flowers with a red-orange center emerge; it is a protected species, endangered in its native habitat of Mexico and Texas.
• Astrophytum myriostigma — A species of succulent cacti within the Astrophytum genus (Cactaceae family), native to the mountainous and arid regions of central and northern Mexico. The plant has a globose stem completely lacking spines, typically divided into 5 prominent ribs, giving it a three-dimensional star shape; its entire epidermis is densely covered by thousands of trichomes (microscopic white dots), giving it a characteristic silver-white hue, and its large flowers are pure yellow without a red center.