Osteospermum corymbosum L.
  • Mant. ii. 290.


Cite taxon page as 'WFO (2020): Osteospermum corymbosum L. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000036132. Accessed on: 25 Oct 2020'

Diagnostic Description

O. corymbosum is a stately plant with its rigidly erect stem 1-2 metres in height, which bears at the summit corymbose inflorescences. The stem is strongly lignified, and of a finger's thickness at the base. The lowest leaves are lingulate, up to 10 cm long and 3 cm broad; the cauline leaves are lanceolate or narrowly oblong, erect and imbricating, decreasing in size upwards. This species resembles most the tall, mountain form of O. imbricatum, but differs from it, int . al., as regards the shape of the achenes and of the cauline leaves. O. corymbosum is characterized by its ellipsoid-cylindrical achenes, which are smooth, or nearly smooth, except at the base, where they are more or less conspicuously furrowed. In contrast to this, O. imbricatum has achenes furnished with three sharp or very narrow-winged primary ridges and six more or less pronounced secondary ridges.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 3
    • ]. 

    Morphology

    Robust, stiffly erect, single-stemmed shrub to 2.5 m. Leaves lanceolate, decreasing in size above. Flower heads radiate, in terminal, branched corymbs on roughly hairy peduncles, yellow. Achenes smooth, ± 7 mm long.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 1
    • ]. 

    Suffrutex 1-2(-3) m altus; caulis teres strictus valde lignescens basi usque 1.5 cm crassus glaber vel ad axillas floccoso-lanatus apicem versus corymbose ramosus dense foliatus. Folia alterna sessilia coriacea glabra margine integerrima laevia vel scabro-ciliata apice acuta vel acuminata vel rarius subobtusa, basalia lineari-lingulata usque 10 cm longa usque 3 cm lata, caulina lanceolata vel anguste oblonga ± erecta et imbricata (2-)4-8 cm longa (0.5-)1-2 cm lata, ramealia ovata vel ovato-lanceolata 1-2 cm longa. Inflorescentiae subdensae in caule et ramis terminates corymbosae multicapitulatae; pedicelli capitulorum glanduloso-muriculati 1-5 cm longi bracteis paucis lineari-lanceolatis c. 5 mm longis instructi. Involucrum campanulatum 7-10 mm altum; squamae 7-10 uni-vel subuniseriatae inter sese fere aequilongae oblanceolatae-anguste obovatae-oblongae mucronatae albido-marginatae dorso glanduloso-nmriculatae 7-9 mm longae 2-4 mm latae. Flores radii flavi 7-10 involucrum fere duplo superantes; flores disci flavi involucro fere aequilongi. Achaenia ellipsoideo-cylindracea glabra laevia vel basin versus sulcata c. 7 mm longa c. 3 mm lata, c. 5 mm longis instructi. Involucrum campanulatum 7-10 mm altum; squamae 7-10 uni-vel subuniseriatae inter sese fere aequilongae oblanceolatae-anguste obovatae-oblongae mucronatae albido-marginatae dorso glanduloso-nmriculatae 7-9 mm longae 2-4 mm latae. Flores radii flavi 7-10 involucrum fere duplo superantes; flores disci flavi involucro fere aequilongi. Achaenia ellipsoideo-cylindracea glabra laevia vel basin versus sulcata c. 7 mm longa c. 3 mm lata.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 3
    • ]. 

    Habitat

    Sandstone slopes above 500 m.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 1
    • ]. 

    In mountainous areas.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 3
    • ]. 

    Distribution

    Langeberg to George.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 1
    • ]. 

    The Cape region, where it has been collected in the Swellendam, Riversdale and George districts.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 3
    • ]. 

      Bibliography

    • 1 Manning, JC; Goldblatt, P. 2012. Asteraceae: Osteospermum L. 402 - 406. South African National Biodiversity Institute, Pretoria.
    • 2 Mant. ii. 290.
    • 3 Norlindh, NT. 1943. Studies in the Calenduleae: 1. Monograph of the genera Dimorphotheca, Castalis, Osteospermum, Gibbaria & Chrysanthemoides. C.W.K. Gleerup, Lund.

     Information From

    Compositae
    CC0 1.0 Universal (CC0 1.0). https://creativecommons.org/publicdomain/zero/1.0
    • A CC0 1.0 Universal (CC0 1.0).
    e-Flora of South Africa
    e-Flora of South Africa. v1.21. 2018. South African National Biodiversity Institute. http://ipt.sanbi.org.za/iptsanbi/resource?r=flora_descriptions&v=1.21
    • B All Rights Reserved
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • C CC0 1.0 Universal (CC0 1.0).