Table 1 Plants used in the present work

Acacia karroo Hayne^A (Mimosoideae)

T. Nielsen PRU 096395

Leaves, 25.1% Stem + Bark, 13.6%

Mouth ulcers, oral thrush^E, diarrhea, dysenteries, colic, colds^G, other Acacia species: asthma, bronchitis, cough, phithisis, fever, leprosy, chest and respiratory ailments^H.

Acokanthera oppositifolia (Lam.) Codd^A (Apocynaceae)

T. Nielsen PRU 0963388

Leaves, 27.7% Stem, 12.6%

Hunting poison^F, snakebites^D, abnormal menstruation, snuff for headaches, septicaemia, toothache^E.

Bulbine latifolia (L.f.) Spreng var. latifolia ^A (Asphodelaceae)

T. Nielsen PRU 096391

Leaves, 0.5%

Wounds, burns, skin conditions^E, diarrhoea, dysenteries, abdominal ailments^G, rheumatism^H.

Curtisia dentata (Burm.f.) C.A.Sm.^A (Cornaceae)

T. Nielsen PRU 096385

Leaves, 33.7% Stem, 15.1%

Stomach ailments, diarrhea, blood purifier, afrodisiac^E, tanning, chewing sticks^G.

Erythrophleum lasianthum Corbishley^A (Caesalpinioideae)

No voucher specimen available *

Leaves, 41.2% Stem, 31.2%

Headaches^D, fever^H, Erythrophleum species: heart problem, dermatitis, wounds, rheumatism, syphilis, gonorrhea, leprosy, tuberculosis, bronchitis, angina, ordeal and hunting poison^F.

Knowltonia vesicatoria Sims^B (Ranunculaceae)

T. Nielsen PRU 096390

Aerial parts, 31.4%

Tooth pain^E, rheumatism, lumbago, colds, influenza^G, skin tumor^H.

Ptaeroxylon obliquum (Thunb.) Radlk.^A (Ptaeroxylaceae)

T. Nielsen PRU 096389

Leaves, 23.1%, Stem, 16.1%, Bark, 13.7%

Snuff for headaches^D, rheumatism, arthritis^E, heart disease, anthrax, sinusitis, lupus, warts^G, sternutatory^H.

Salvia africana-lutea L.^A (Lamiaceae)

T. Nielsen PRU 096396

Aerial parts, 29.2%

Colds, flu, bronchitis, abdominal and uterine troubles^E, cough, chest troubles^G, other Salvia species: night sweat tuberculosis, respiratory and pulmonary ailments, ^G,H .

Sansevieria hyacinthoides Hort. ex Steud.^B (Dracaenaceae)

T. Nielsen PRU 0963387

Leaves, 11.9% Rhizome, 12.7%

Earache, stomachache, toothache, hemorrhoids, ulcers, diarrhea, intestinal parasites^E, Sansevieria species: chest diseases, cough remedy^F.

Searsia burchellii (Sond. ex Engl.) Moffett^C (Anarcardiaceae)

T. Nielsen PRU 096386

Leaves, 24.5% Stem, 9.4%

Chest colds^G, Rhus (Searsia) species: colds, cough, expectorant, febrifuge, pulmonary ailments, tuberculosis^H.

Typha capensis Rohrb.^B (Typhaceae)

T. Nielsen PRU 096394

Leaves, 17.0%

Fertility, potency, circulation, delivery, venereal diseases, dysentery, diarrhea, enteritis, blood purifier^E, gonorrhea, pulmonary ailments^H.

Zantedeschia aethiopica (L.) Spreng.^A (Araceae)

T. Nielsen PRU 096392

Leaves + Stem, 15.2%

Wounds, sores, boils^E,G, insect bites, gout, rheumatism^G,H.