Plants ca. 30 cm. Rootstock slender creeping, apparently swollen at nodes, internodes elongated. Stem single, striate. Basal petioles 5–9 cm; blade triangular-ovate, 3–6 × 2–5 cm, ternate-2-pinnate; ultimate segments ovate or ovate-lanceolate, 10–20 × 8–15 mm, margins 3–5-lobed. Upper leaves sessile, 1-pinnate. Umbels terminal, 3–4 cm across; lateral umbels smaller, usually staminate; bracts 5–6, linear, reflexed; rays 10–14, 1.5–2 cm; bracteoles 5–6, linear, reflexed. Calyx teeth obsolete. Petals white, obovate, base shortly clawed. Styles ca. 0.5 × fruit. Fruit oblong-ovoid, ca. 3 × 2 mm; dorsal and intermediate ribs prominent, lateral ribs ca. 0.5 mm; vittae 1 in each furrow, 2–4 on commissure. Seed face plane. Fl. Jul–Aug, fr. Sep–Oct.
Home