Forest red gum

Trees, to 40 m; trunk gray or tan, nearly straight, ± smooth; bark usually shed in irregular strips distally, sometimes per­sistent toward trunk base. Leaves: (juvenile alternate, petiolate); petiole 0.3–2 cm; blade green, lanceolate, 6–20 × 1.5–2.5 cm. Peduncles 0.8–1.2 cm. Inflorescences ca. 7-flowered, umbels. Flowers: hypanthium hemispheric, 2–3 mm, calyptra 2–3 times as long as hypanthium; calyptra mostly conic-acuminate or horn-shaped; stamens white. Capsules hemispheric, 5–9 mm, not glaucous; valves 3–5, exserted.

Flowering spring–summer. Disturbed coastal, urban areas; 0–200 m; introduced; Calif.; e Australia.

Eucalyptus tereticornis is known from the San Joaquin Valley, Outer South Coast Ranges, South Coast, northern Channel Islands, and Transverse and Peninsular ranges.