Pittosporum elevaticostatum Hung T. Chang & S. Z. Yan

Shrubs ca. 2 m tall. Young branchlets glabrous; old branchlets brown, lenticels small. Leaves clustered at branchlet apex, appearing opposite or verticillate; petiole 1 cm; leaf blade slightly shiny adaxially, narrowly oblanceolate, 6–13 × 2–3.5 cm, leathery, glabrous abaxially, midvein convex adaxially, lateral veins 8–10-paired, convex abaxially, slightly visible adaxially, reticulate veins concave and indistinct abaxially, base narrowly cuneate, apex acute. Inflorescences terminal or near so, umbellate; pedicels 1–1.7 cm, glabrous. Sepals ovate, 2.5–3 mm, glabrous, slightly connate at base, margin ciliate, apex obtuse. Petals ca. 7 mm. Stamens ca. 5 mm; filament 3–4 mm; anther ca. 1 mm. Pistil equaling stamens; ovary pubescent; placentas 2(or 3), parietal; ovules 8–15; style ca. 2.5 mm. Capsules 1 or 2, subglobose, 1–1.2 cm in diam., usually dehiscing by 2(or 3) valves; pericarp ca. 1 mm thick; pedicel 1–2.5 cm; stipe ca. 2 mm; persistent style ca. 2.5 mm. Seeds 10–15, red, 3–4 mm; funicle ca. 2 mm. Fl. Mar–May, fr. Jun–Oct.

N Guizhou (Yinjiang Xian, Zunyi Shi), W Hubei, E Sichuan.

Forests, forest margins, thickets, slopes, valleys, stream sides; 800--1300 m.

Pittosporum elevaticostatum là một loài thực vật có hoa trong họ Pittosporaceae. Loài này được Hung T. Chang & S.Z. Yan miêu tả khoa học đầu tiên năm 1978.

突肋海桐（学名：Pittosporum elevaticostatum）为海桐花科海桐花属下的一个种。