| Home | > | List of families | > | Apocynaceae subfamilies Asclepiadoideae and Secamonoideae | > | Pentarrhinum | > | abyssinicum |
| Synonyms: |
Cynanchum ethiopicum Liede & Khanum subsp. angolense (N.E.Br) Leide & Khanum Pentarrhinum abyssinicum var. angolense N.E.Br. |
| Common names: | |
| Frequency: | Rare |
| Status: | Native |
| Description: |
Slender perennial twining to 5 m, stems simple or branched, containing white latex. Leaves with petiole 1.5 - 5 cm long, minutely pubescent; lamina 3 - 10 x 1.5 - 6 cm, ovate to broadly triangular, apex acute or attenuate, base weakly to strongly cordate, shortly pubescent or glabrous. Inflorescences extra-axillary, simple or irregularly branched, umbelliform (most forest forms) or the flowers scattered singly or in pairs along the inflorescence axes (more open habitats). Sepals 1 - 3 mm long, triangular, acute. Corolla greenish white or pale yellow, less than 10 mm diameter, 2 - 6 x 1 - 2 mm, ovate to oblong, lobes fully reflexed at anthesis, margins generally glabrous. Corona white, divided almost to the base; lobes spreading or erect, 1.5 - 2.5 mm long, slightly longer than the staminal column, thin or somewhat fleshy, the lateral and apical margins in-rolled forming a weakly to strongly developed apical tooth on the inner face. Follicles occurring singly or in pairs, 5–6 × 1 cm, lanceolate in outline, tapering to a weakly clavate tip, smooth or with irregular soft processes. Mature seeds not seen. |
| Type location: |
Angola |
| Notes: | The genus Pentarrhinum has been absorbed within an expanded concept of Cynanchum by Bruyns et al. (S. African J. Bot. 112: 339-436 [2017]). |
| Derivation of specific name: | abyssinicum: of Abyssinia (Ethiopia) angolense: of Angola |
| Habitat: | Wet forest |
| Altitude range: | 1400 - 1800 m |
| Flowering time: | Apr - Jul |
| Worldwide distribution: | Cameroon, Kenya, Tanzania, Uganda, DRC, Malawi, Zambia, Angola, Namibia |
| Zambian distribution (Flora Zambesiaca): | C |
| Zambian distribution (Provinces): | C |
| Growth form(s): | Climber. |
| Endemic status: | |
| Red data list status: | |
| Insects associated with this species: | |
| Spot characters: | Display spot characters for this species |
| Literature: |
Goyder, D.J., Gilbert, M.G. & Venter, H.J.T. (2020). Apocynaceae (Part 2) Flora Zambesiaca 7(2) Pages 338 - 339. Liede, S. & Nicholas, A. (1992). A Revision of the Genus Pentarrhinum E. Meyer (Asclepiadaceae) Kew Bulletin 47(3) Pages 482 - 484. (Includes a picture). |
| Home | > | List of families | > | Apocynaceae subfamilies Asclepiadoideae and Secamonoideae | > | Pentarrhinum | > | abyssinicum |