attract-prey attracted attraction carnivore carnivorous carnivorous-plants clumps clusters coloring colors colouring colours cover devour digest digested digesting display distinctive edge edges enzymes flora flowers funnel herbaceous insect-trap insects nectar-like-secretions nutrient-source nutrients operculum passive-trap perennials pitcher-plants pitchers pitfall-traps plants prey proteases rims slippery species trap unusual variations variety vegetation veins annual arctotheca-calendula bright cape-daisy cape-dandelion cape-gold cape-marigold cape-weed capeweed competitive daisylike edible flower golden green groundcover hairy-stems herb herbaceous-plant invasive-weed leaves lobed-basal-leaves noxious-weed ornamental petals plant pointed-petals prolific rosettes shade shadows spreader squat-perennial stamens stolons sunlight sunshine taproot vigorous weed yellow