Orobanchaceae
Buchnera

Buchnera wildii Philcox

First published in Kew Bull. 42: 208 (1987)
This species is accepted
The native range of this species is E. Zimbabwe to W. Mozambique. It is an annual or perennial and grows primarily in the seasonally dry tropical biome.

Descriptions

Scrophulariaceae, D. Philcox. Flora Zambesiaca 8:2. 1990

Morphology General Habit
Annual or perennial herbs up to 65 cm. tall, erect or ascending; stems 1-several arising from woody rootstock, simple or branched near or towards base, or occasionally within inflorescence, long pilose to hispid-pilose, frequently intermixed with shorter appressed hairs, sparsely leafy above with long internodes up to 8(11) cm. long.
Morphology Leaves
Leaves: upper cauline opposite to subopposite, up to c. 10 x 1.5 mm., linear, patently hispid-pilose; lower leaves opposite to alternate, 15–40(55) x 2–5(9) mm. long, fine pilose to varying density on both surfaces, ovate-oblong, obovate to linear-oblong, 1–3-nerved, entire or occasionally shallowly crenate, obtuse, shortly apiculate to mucronulate.
Morphology Reproductive morphology Inflorescences
Spikes terminal, 10–50 mm. long at flowering, up to 90( 180) mm. long in fruit, up to 15 mm. wide, cylindrical, compact with lower flowers occasionally becoming remote at fruiting, obscurely quadrangular.
Morphology Reproductive morphology Inflorescences Bracts
Bracts 4–7.5 x 1.2–1.5(2) mm., hispid-pilose, lanceolate.
Morphology Reproductive morphology Inflorescences Bracteoles
Bracteoles 2.5–5 x 0.3–0.5 mm., linear, hispid-ciliate.
Morphology Reproductive morphology Flowers Calyx
Calyx 6.5–9 mm. long, obscurely to prominently 10-nerved, densely to subdensely patent hispid-pilose, 5-lobed, frequently with adaxial lobe much reduced, even causing calyx to appear 4-lobed;lobes (0.5)2–4 mm. long, narrowly triangular to subulate, broadly divergent especially at fruiting, calycal sinus not present.
Morphology Reproductive morphology Flowers Corolla
Corolla blue, mauve, purple or white; tube 7–8.5 mm. long, slighdy densely pilose without, throat pilose; limb (7)10–13(17.5) mm. in diam.; lobes 2.5–6 x 2–3.5 mm., oblong to obovate, unequal.
Morphology Reproductive morphology Fruits
Capsule 4.8–5.5 x 2.5–3 mm., cylindrical to broadly cylindric oblong-ovoid, apex truncate, shortly rostrate, c. 0.5 mm. long.
[FZ]

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: threatened. Confidence: confident
[AERP]

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/66177752/66177755

Conservation
NT - near threatened
[IUCN]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0

  • Flora Zambesiaca

    • Flora Zambesiaca
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Herbarium Catalogue Specimens

    • 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 2024. 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 2024. 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