Scientific name: Downingia species Family: Campanulaceae (bellflower) Habitat: vernal pools Size: Plants are 3 to 10 inches tall; each
flower is 7 to 18 mm; Downingia Bicornuta usually has larger
flowers than the other two species.
Scientific name: Vicia villosa Family: Fabaceae (pea) Habitat: grassland (often disturbed) Size: Plants are long and viney, growing up to a
few feet long; each flower is 1 to 1.5 cm long, the clusters have
For 2 billion years, bacteria were the only creatures on Earth.
Long before the dinosaurs, a special type of bacteria slowly
increased the level of oxygen in the Earth’s air to 20 percent.
Without this oxygen other plants and animals could not have
evolved, including us.