6. Listera ovata (Linnaeus) R. Brown, Hortus Kew. 5: 201. 1813.
Ophrys ovata Linnaeus, Sp. Pl. 2: 946. 1753; Diphryllum ovatum
(Linnaeus) Kuntze; Distomaea ovata (Linnaeus) Spenner; Epipactis
ovata (Linnaeus) Crantz; Helleborine ovata (Linnaeus) F. W.
Schmidt; Neottia latifolia Richard; N. ovata (Linnaeus) Bluff &
Fingerhut Plants 20–60 cm. Stem green, stout, succulent,
glabrous. Leaves: blade yellow-green to green, ovate-elliptic,
10–17 × 10–12 cm, apex acute. Inflorescences 10–100-flowered,
lax to dense, 10–50 cm; floral bracts lanceolate, 3 × 1 mm;
peduncle and rachis glandular-pubescent. Flowers yellowish
green; pedicels stout, 3–4 mm, slightly glandular-pubescent;
sepals and petals projecting forward, connivent, forming hood
over column; dorsal sepal ovate, concave, 5–6 × 2–3 mm, apex
obtuse; lateral sepals ovate, concave, falcate, 4 × 2–3 mm, apex
obtuse; petals linear, concave, 4 × 1 mm, apex obtuse; lip
acutely deflexed near base, sessile, linear, apical 1/2
expanded, cleft into bluntly rounded lobes