Compilation
Plectranthus caninus

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Name

Identification
Ocimum monadelphum R.Br. [family LAMIACEAE ] Plectranthus caninus Roth [family LAMIACEAE ] (stored under name);
Related name
  • Coleus pachyphyllus
  • Coleus spicatus
  • Plectranthus pachyphyllus
  • Plectranthus caninus
  • Coleus caninus
  • Plectranthus monadelphus
  • Plectranthus spicatus
  • Ocimum monadelphum
  • Plectranthus nudiflorus

Flora

Entry for PLECTRANTHUS caninus Roth [family LABIATAE]
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora Somalia
Resource Type
Reference Sources
Entry From
Flora Somalia, (2000) Author: by O. Ryding (Aeollanthus, Basilicum, Clinopodium, Endostemon, Fuerstia, Hoslundia, Lavandula, Leucas, Micromeria, Nepeta, Ocimum, Orthosiphon, Otostegia, Plectranthus, Renschia, Salvia, Scutellaria, Stachys, Teucrium, Tinnea) and M. Thulin (Clerodendrum, Premna, Rotheca, Vitex) [updated by M. Thulin 2008]
Names
PLECTRANTHUS caninus Roth [family LABIATAE], (1821);
Coleus caninus (Roth) Vatke [family LABIATAE], (1872). [type as above]
Coleus pachyphyllus Gürke [family LABIATAE], (1906);. type: S1, “Korkora”, Ellenbeck 2233 (B syn. destr.); S3, 20 mls N of “Gelib”, near Jubba R., Mooney 7672 (K neo.).
Information
Annual or short-lived perennial herb, c.0.15–0.3 m tall; stems ± fleshy, erect or ascending, moderately pubescent with short recurved hairs and mostly also longer spreading hairs. Leaves subsessile or shortly petiolate, rather fleshy; blade oblanceolate, narrowly obovate, elliptic, 25–50 × 8–20 mm, ± fleshy, moderately hairy, apex rounded or obtuse, base cuneate, margin dentate, crenate or subentire. Inflorescences dense and spike-like; bracts large, broad, early deciduous; cymes 3(–4) flowered, subsessile; pedicels suberect and recurved in the apical part, 1–3 mm long in the fruiting stage. Fruiting calyx broad, 3.5–4.5 mm long, densely villous inside the throat; upper lip very broad, concave, decurrent; lower lobes 1.5–3 mm long, almost as long as the lateral lobes. Corolla 7–11 mm long, blue or violet; lower lip 3–5 mm long, much longer than the upper lip. Stamens connate. Nutlets c. 1 × 0.9 mm, black, glossy, producing mucilage when wet.
Range
N1; S1, 3 widespread from the eastern part of tropical Africa to South Africa,
Altitude range
25–1740 m.
Distribution
SOMALIA Bally 11720; Gillett 4575; Thulin & al. 7742.
Distribution (external)
India
Notes
The material from S3 belongs to the typical annual African form of the species. Material from N1 differs by being more thick-stemmed, decumbent and mostly perennial, and by having slightly broader leaves. According to Cuf. Enum.: 832 (1963), Coleus comosus Hochst. ex Gürke (= P. ornatus Codd) has been recorded from northern Somalia. No such material has been seen and the plant referred to may belong to the thick-stemmed form of the closely related P. caninus.

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