cochineal insect: Mexican red scale insect that feeds on cacti; the source of a red dye
scale insect: small homopterous insect that usually lives and feeds on plants and secretes a protective waxy covering
draba: any of numerous low-growing cushion-forming plants of the genus Draba having rosette-forming leaves and terminal racemes of small flowers with scapose or leafy stems; fruit is a dehiscent oblong or linear silique