Epipactis atrorubens

(Hoffmann ex Bernhardi) Besser

Prim. Fl. Galiciae Austriac. 2: 220. 1809.

Common names: Dark red helleborine
Basionym: Serapias atrorubens Hoffmann ex Bernhardi in G. F. Hoffmann, Deutchl. Fl. 4: 182. 1804
Synonyms: Epipactis helleborine subsp. atrorubens (Hoffmann ex Bernhardi) Syme Epipactis rubiginosa (Crantz) W. D. J. Koch
Treatment appears in FNA Volume 26. Mentioned on page 585.

Plants 20–60(–106) cm, sparsely hairy. Leaves 5–10; blade orbiculate, elliptic, or narrowly lanceolate, 4–10 × 1.5–4.5 cm. Inflorescences lax racemes, usually secund; floral bracts lanceolate, 10–35 mm, often exceeding flowers. Flowers 8–18, dark wine to cranberry red, small; sepals dark wine red, rarely dull rose or greenish abaxially; lateral sepals 6–7 mm; petals similar to sepals in color, ovate, 4–7 × 2–4.5 mm; lip indistinctly veined, 5.5–6.5 mm, constricted at middle into 2 parts, proximal part greenish with red edges, deeply concave, adaxial surface spotted with violet-red or brown, distal part brighter and darker, broadly triangular or transversely elliptic, minutely toothed with small reflexed tip; calli 2, brownish, brighter, darker in color than lip, rugose; column very short, 2–3 mm; anther yellow; pollinia 2 pairs, yellow, mealy; ovary tomentose. Capsules ovoid, 7–9 mm, moderately to densely tomentose. 2n = 40.

Phenology: Flowering Aug.
Habitat: Partial shade in abandoned serpentine/asbestos quarry
Elevation: 700 m


V26 1194-distribution-map.jpg

Introduced; Vt., Europe, Asia (Iran).


Epipactis atrorubens is apparently naturalized in Vermont where a small population persists (P. M. Brown 1997).

Selected References


Lower Taxa

... more about "Epipactis atrorubens"
Paul Martin Brown +  and George W. Argus +
(Hoffmann ex Bernhardi) Besser +
Serapias atrorubens +
Dark red helleborine +
Vt. +, Europe +  and Asia (Iran). +
Partial shade in abandoned serpentine/asbestos quarry +
Flowering Aug. +
Prim. Fl. Galiciae Austriac. +
Introduced +
Epipactis helleborine subsp. atrorubens +  and Epipactis rubiginosa +
Epipactis atrorubens +
Epipactis +
species +