Ceratotheca triloba

(Bernhardi) E. Meyer ex Hooker f.

Bot. Mag. 114: plate 6974. 1888.

Common names: Wild or white or South African foxglove
Basionym: Sporledera triloba Bernhardi Linnaea 16: 42. 1842
Synonyms: Ceratotheca lamiifolia (Engler) Engler Sesamum lamiifolium Engler
Treatment appears in FNA Volume 17. Treatment on page 361. Mentioned on page 362.

Stems branched proximally, slightly 4-angled, 50–150 cm. Leaves: petiole 2–10(–15) cm, hairy; blade broadly ovate to cordate or triangular, 3–10(–20) × 3–10 cm, base rounded to cordate, apex obtuse to acute. Inflorescences secund. Pedicels 2–4 mm; bracteoles 0–2, linear. Flowers drooping; sepals often purple distally, 7–10 mm; corolla 25–40 mm, glandular-pubescent externally, strongly curved at base, mouth 15 mm diam. Capsules 20–30 × 4–5 mm. Seeds 2–4 mm, smooth. 2n = 32 (Africa).

Phenology: Flowering Jul–Nov.
Habitat: Disturbed sites.
Elevation: 0–100 m.


Introduced; Fla., s South Africa (Natal).


Plants of Ceratotheca triloba resemble those of Digitalis with their tall, herbaceous habit, secund racemes curved toward the tip, and drooping, tubular flowers. Capsules of C. triloba are four-locular and have two subapical, hornlike appendages, basal leaves sometimes three-foliolate, and corolla lobes relatively large and rounded. Plants escaped from cultivation are known from Highlands and Lake counties.

Another species, Ceratotheca sesamoides Endlicher, distinguished by smaller flowers, dense indument, and all leaves simple, is sometimes cultivated in the flora area.

Selected References


Lower Taxa

... more about "Ceratotheca triloba"
Kerry A. Barringer +
(Bernhardi) E. Meyer ex Hooker f. +
Sporledera triloba +
Wild or white or South African foxglove +
Fla. +  and s South Africa (Natal). +
0–100 m. +
Disturbed sites. +
Flowering Jul–Nov. +
Introduced +  and Illustrated +
Ceratotheca lamiifolia +  and Sesamum lamiifolium +
Ceratotheca triloba +
Ceratotheca +
species +