Euonymus occidentalis

Nuttall ex Torrey

in War Department [U.S.], Pacif. Railr. Rep. 4(5): 74. 1857.

Common names: Western spindle-tree
Treatment appears in FNA Volume 12. Treatment on page 124. Mentioned on page 123.

Shrubs 2–6 m. Stems erect or scandent; young branches 4-angled, not corky winged. Leaves deciduous; petiole 3–15 mm; blade ovate to obovate, 4–10 × 2–7 cm, base rounded to narrowly cuneate, margins serrulate, apex obtuse, rounded, or acuminate. Inflorescences axillary, 1–5 flowered. Flowers: sepals 5; petals 5, brownish purple sometimes spotted, round or oblong, 3–6.5 × 2–4 mm; stamens 5; ovary smooth. Capsules pink to purple, subglobose to obovoid, 11–12 × 12–15 mm, moderately 3(–5)-lobed, lobes clearly connate, surface smooth. Seeds obovoid, 6–8 × 4–5 mm; aril orange to red.


Varieties 2 (2 in the flora).

Selected References



1 Leaf blade apices acuminate; twigs greenish; inflorescences 1–5-flowered. Euonymus occidentalis var. occidentalis
1 Leaf blade apices obtuse or rounded; twigs whitish; inflorescences 3–5-flowered. Euonymus occidentalis var. parishii