Nettle Family: Plants having tiny green flowers without petals arranged in thin, stringy clusters. Toothed leaves are opposite. Plants are covered with stinging hairs!

Arum Family: Plants having a large, yellow leaf that surrounds a yellow spike of tiny flowers. Basal leaves very large. Plants have a sulfur odor when in bloom!

Goosefoot Family: Sorry, but this one's not operational yet! Weedy plants having tiny green, non-petaled flowers in thick spike-like clusters. Leaves often have a white, scruffy appearance.

Amaranth Family: Sorry, but this one's not operational yet! Weedy plants having tiny flowers in thick spikes or clusters. Leaves lack the white, scruffy appearance.