Ourisia crosbyi

Ourisia crosbyi plants are large perennial herbs. The stems are creeping, with opposite leaves that are tightly tufted along the horizontal stem. Leaf petioles are 5.0–145.0 mm long. Leaf blades are 14.2–72.5 mm long by 7.8–65.0 mm wide (length: width ratio 1.3–1.8: 1), usually narrowly ovate to ovate, widest below the middle, with an acute apex; usually truncate base; and serrate or serrate-crenate edges. Leaves are sparsely to densely hairy with non-glandular hairs on both sides. Inflorescences are erect, with usually glabrous racemes up to 49 cm long, and with 3–6 flowering nodes and up to 40 total flowers per raceme. Each flowering node has up to 12 flowers and 2–12 sessile and sometimes clasping bracts that are usually lanceolate to narrowly ovate. The lowest bracts are similar to the leaves, 13.6–45.1 mm long and 4.0–32.0 mm wide, and become smaller toward the apex of the raceme. The flowers are borne on a densely hairy pedicel that is up to 48.6 mm long and has non-glandular hairs only. The calyx is 4.2–7.8 mm long, regular, with all five lobes divided to the base, and with isolated to sparsely distributed hairs. The corolla is 14.5–19.9 mm long (including the 4.3–10.7 mm long corolla tube), bilabiate, tubular-funnelform, glabrous and white on the outside, and yellow and with three lines of yellow hairs on the inside. …

Ourisia crosbyi is endemic to southern South Island, New Zealand, in Westland, Southland, Fiordland and Stewart Island. It is found in montane southern beech forest below the bushline, in damp areas on the forest floor, or near streams or waterfalls, from 0 to 1,050 m (3,440 ft) above sea level.