Eulophia katangensis (De Wild.) De Wild.

First published in Bull. Jard. Bot. État Bruxelles 6: 121 (1919)
This species is accepted
The native range of this species is Central African Republic to Tanzania and S. Tropical Africa. It is a pseudobulbous geophyte and grows primarily in the seasonally dry tropical biome.

Descriptions

Orchidaceae, I. la Croix & P.J. Cribb. Flora Zambesiaca 11:2. 1998

Morphology General Habit
Terrestrial herb 10–60 cm tall.
Vegetative Multiplication Pseudobulbs
Perennating organs subterranean, pseudobulbous, 2–4.5 × 1.3.5 cm, conical to ovoid, with several nodes, covered in fibrous sheaths, set close together in a short chain; roots 1–1.5 mm in diameter, arising from base of pseudobulb.
Morphology Leaves
Leaves 20–30 cm × 3–3.5 mm, linear, acute, grass-like, often rather curled, usually produced after flowering but present with flowers on Pawek 5691 and Greatrex 53.Inflorescence laxly 2–8-flowered; scape slender, with 3 sheaths towards the base.
Morphology Reproductive morphology Flowers Pedicel and Ovary
Pedicel and ovary 10–16 mm long.
Morphology Reproductive morphology Inflorescences Bracts
Bracts 2–6 mm long.
Morphology Reproductive morphology Flowers
Flowers ± erect, facing upwards, cream or pale pink with a mauve lip or brownish with a purple or purple-green lip, the veins darker brown or purple.
Morphology Reproductive morphology Flowers Calyx
Sepals 16–19 × 1–2 mm, linear or linear-spathulate, acute to acuminate, the dorsal erect, the laterals spreading.
Morphology Reproductive morphology Flowers Corolla
Petals 11–14 × 1–2.5 mm, linear lanceolate, acute or apiculate, projecting over column.
Morphology Reproductive morphology Flowers Labellum
Lip 8–15 × 7–9 mm, 3-lobed at about halfway; side lobes erect, rounded; mid-lobe c. 6 × 4 mm, suborbicular, obtuse; callus of 3 ridges, papillose on the mid-lobe; spur 7–10 mm long, slender and cylindrical from a conical base, straight, forming an acute angle with the ovary.
Morphology Reproductive morphology Flowers Column
Column 5–6 mm long.
Morphology Reproductive morphology Fruits
Capsule erect, 17–18 mm long.
[FZ]

Orchidaceae, V. S. Summerhayes. Flora of Tropical East Africa. 1968

Morphology General Habit
A terrestrial herb 11–44 cm. tall.
Vegetative Multiplication Pseudobulbs
Perennating organs underground, pseudobulbous, ovoid-conical, proximate in a row, 2–4 cm. tall, 8–35 mm. diameter, 3-noded; roots 1–1.5 mm. diameter, from base of pseudobulbs, white.
Morphology Leaves
Leaves 3, erect, linear, acute, 20–25 cm. long, 3–3.5 mm. wide.
Morphology Reproductive morphology Inflorescences
Inflorescence produced before leaves, 2–8-flowered; peduncle wiry, 1 mm. diameter, with 3 sheaths towards base; rhachis 4–20 cm. long; bracts lanceolate, acuminate, 2–6 mm. long.
Morphology Reproductive morphology Flowers
Flowers erect; sepals and petals whitish pink to greenish yellow, shaded with purple at apices of petals; lip mid-lobe pinkish mauve; pedicel and ovary 10–16 mm. long.
Morphology Reproductive morphology Flowers Calyx
Dorsal sepal linear, acute to acuminate, 16–18 mm. long, 2 mm. wide; lateral sepals similar.
Morphology Reproductive morphology Flowers Corolla
Petals linear-lanceolate, acute to apiculate, 11–12 mm. long, 2–2.5 mm. wide.
Morphology Reproductive morphology Flowers Labellum
Lip 3-lobed, 8–15 mm. long, 7–9 mm. wide; side lobes rounded; mid-lobe subcircular, obtuse; callus of 3 ridges, papillose in front on mid-lobe.
Morphology Reproductive morphology Flowers Spur
Spur straight, at acute angle to ovary, cylindric from conical base, 8–10 mm. long.
Morphology Reproductive morphology Flowers Column
Column 6 mm. long.
Morphology Reproductive morphology Fruits
Fruit erect, 17–18 mm. long.
Figures
Fig. 104/1–10, p. 462.
Habitat
In bare and hardbaked soil on hilltops; 1500–2000 m.
Distribution
T7
[FTEA]

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation
Predicted extinction risk: not threatened. Confidence: confident
[AERP]

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/44392994/44526338

Conservation
LC - least concern
[IUCN]

General Description

Terrestrial herb 10–60 cm tall.Perennating organs subterranean, pseudobulbous, 2–4.5 × 1.3.5 cm, conical to ovoid, with several nodes, covered in fibrous sheaths, set close together in a short chain; roots 1–1.5 mm in diameter, arising from base of pseudobulb.Leaves 20–30 cm × 3–3.5 mm, linear, acute, grass-like, often rather curled, usually produced after flowering but present with flowers on Pawek 5691 and Greatrex 53.Inflorescence laxly 2–8-flowered; scape slender, with 3 sheaths towards the base.Pedicel and ovary 10–16 mm long; bracts 2–6 mm long.Flowers ± erect, facing upwards, cream or pale pink with a mauve lip or brownish with a purple or purple-green lip, the veins darker brown or purple.Sepals 16–19 × 1–2 mm, linear or linear-spathulate, acute to acuminate, the dorsal erect, the laterals spreading.Petals 11–14 × 1–2.5 mm, linear lanceolate, acute or apiculate, projecting over column.Lip 8–15 × 7–9 mm, 3-lobed at about halfway; side lobes erect, rounded; mid-lobe c. 6 × 4 mm, suborbicular, obtuse; callus of 3 ridges, papillose on the mid-lobe; spur 7–10 mm long, slender and cylindrical from a conical base, straight, forming an acute angle with the ovary.Column 5–6 mm long.Capsule erect, 17–18 mm long.

A terrestrial herb 11–44 cm. tall. Perennating organs underground, pseudobulbous, ovoid-conical, proximate in a row, 2–4 cm. tall, 8–35 mm. diameter, 3-noded; roots 1–1.5 mm. diameter, from base of pseudobulbs, white. Leaves 3, erect, linear, acute, 20–25 cm. long, 3–3.5 mm. wide. Inflorescence produced before leaves, 2–8-flowered; peduncle wiry, 1 mm. diameter, with 3 sheaths towards base; rhachis 4–20 cm. long; bracts lanceolate, acuminate, 2–6 mm. long. Flowers erect; sepals and petals whitish pink to greenish yellow, shaded with purple at apices of petals; lip mid-lobe pinkish mauve; pedicel and ovary 10–16 mm. long. Dorsal sepal linear, acute to acuminate, 16–18 mm. long, 2 mm. wide; lateral sepals similar. Petals linear-lanceolate, acute to apiculate, 11–12 mm. long, 2–2.5 mm. wide. Lip 3-lobed, 8–15 mm. long, 7–9 mm. wide; side lobes rounded; mid-lobe subcircular, obtuse; callus of 3 ridges, papillose in front on mid-lobe; spur straight, at acute angle to ovary, cylindric from conical base, 8–10 mm. long. Column 6 mm. long. Fruit erect, 17–18 mm. long. Fig. 104/1–10, p. 462.

Habitat

In bare and hardbaked soil on hilltops; 1500–2000 m.

In dry grassland and bare rocky patches in open miombo and rocky hillsides, also in dry Brachystegia woodland

[E-EM]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0
  • Eulophiinae: e-monocot.org

    • All Rights Reserved
  • Flora Zambesiaca

    • Flora Zambesiaca
    • http://creativecommons.org/licenses/by-nc-sa/3.0
  • Flora of Tropical East Africa

    • Flora of Tropical East Africa
    • http://creativecommons.org/licenses/by-nc-sa/3.0
  • Herbarium Catalogue Specimens

    • 'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    • Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/
  • IUCN Categories

    • IUCN Red List of Threatened Species
    • http://creativecommons.org/licenses/by-nc-sa/3.0
  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2026. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0
  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2026. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0