Scutellaria tuberosa

Scutellaria tuberosa is a species of perennial herb in the mint family commonly known as Danny's skullcap. A short, tuberous plant, it is characterized by violet-blue flowers when it is in bloom from March to July. It is native to western North America from Oregon through California to Baja California, where it is widespread throughout the mountain and coastal regions. It can be found in forest and woodland habitat, and a variety of open habitat types, often appearing in areas recently cleared by wildfire.

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Scutellaria tuberosa is a perennial herb producing an erect stem or cluster of stems up to about 25 cm (9.8 in) tall from a root system with tubers. The stems are coated in short, spreading hairs 1–3 mm (0.039–0.118 in) long. The ovate leaves are oppositely arranged, and the lowest leaves are borne on short petioles 5–20 mm (0.20–0.79 in) long. Flowers emerge from the leaf axils, on pedicels 2–4 mm (0.079–0.157 in) long. Each flower is held in a calyx 4–5.5 mm (0.16–0.22 in) long with a transverse ridge on the upper calyx lip. The tubular corolla is 13–20 mm (0.51–0.79 in) long and violet-blue in color, with the lower lip covered in white patches or spots. The inner surface of the corolla can be glabrous to long-haired. The fruit is black.