Dactylorhiza aristata

(Fischer ex Lindley) Soó

Nom. Nov. Gen. Dactylorhiza, 5. 1962.

Common names: Fischer’s orchid
Basionym: Orchis aristata Fischer ex Lindley Gen. Sp. Orchid. Pl., 262. 1835
Synonyms: Dactylorhiza aristata var. kodiakensis Luer & G. M. Luer
Treatment appears in FNA Volume 26. Treatment on page 578.

Plants 5–40 cm. Leaves 2–5; blade often purple-spotted or suffused with purple, proximal blade 3–18 × 1–6 cm. Inflorescences: floral bracts lanceolate, 15–50 × 5–15 mm, the larger often suffused with purple, extending well beyond flowers. Flowers magenta, pink, or white; sepals prominently oblique and erect at base, upwardly curving forward or downward, ovate-lanceolate, 9–11(–13) × 3–6 mm, awned; petals ovate-lanceolate, 6–9 × 3–4 mm, awned; lip often magenta- to red-spotted, suborbiculate to obcordate, 8–12 × 8–12 mm, shallowly 3-lobed or entire, tip of middle lobe apiculate; spur 5.5–7.5 mm, 1/2–2/3 as long as ovary. 2n = 40, 42.


Phenology: Flowering late spring–mid summer.
Habitat: Moist open tundra, meadows, bogs
Elevation: 0–800 m

Distribution

V26 1181-distribution-map.jpg

Alaska, e Asia (Russian Far East).

Discussion

Dactylorhiza aristata var. kodiakensis has been separated primarily on the basis of its being uniform instead of variable like the typical variety (C. A. Luer 1975); supplementary characters all partially overlap. While this variety is not recognized here, variability in the Alaskan Fischer’s orchids merits detailed taxonomic study.

Selected References

None.

Lower Taxa

None.
... more about "Dactylorhiza aristata"
Charles J. Sheviak +, Paul M. Catling +, Susan J. Meades +  and Richard M. Bateman +
(Fischer ex Lindley) Soó +
Orchis aristata +
Fischer’s orchid +
Alaska +  and e Asia (Russian Far East). +
0–800 m +
Moist open tundra, meadows, bogs +
Flowering late spring–mid summer. +
Nom. Nov. Gen. Dactylorhiza, +
Dactylorhiza aristata var. kodiakensis +
Dactylorhiza aristata +
Dactylorhiza +
species +