Hirpicium gorterioides (Oliv. & Hiern) Roessler

This species is accepted, and its native range is S. Tropical Africa to Namibia.

[FZ]

Compositae, G. V. Pope. Flora Zambesiaca 6:1. 1992

Morphology General Habit
An annual scabridulous herb, 10–50 cm. tall.
Morphology Branches
Branches erect or decumbent, leafy, coarsely hispid, beset with scattered 1–2 mm. long patent conical-based bristles, also thinly araneose towards the apex.
Morphology Leaves
Leaves mostly 2–8 x 0.5–1.5 cm., narrowly elliptic to oblanceolate, sometimes ± linear, tapering into a cuneate or petiole-like base to c. 1.5 cm. long, entire to irregularly serrate-dentate or lobed, apex subobtuse mucronulate, margins ± revolute; upper surface scabrid, densely beset with conical spinules which grade into scattered conical-based spinose bristles up to 3 mm. long, the latter usually most numerous towards the leaf base and becoming somewhat pectinate-ciliate to c. 4 mm. long on the margins near the base; lower surface whitish or greyish lanate-tomentose except for the midrib.
Morphology Reproductive morphology Inflorescences Capitulum
Capitula terminal on branches, sessile and subtended by 3-several leaves which exceed the capitulum in length.
Morphology Reproductive morphology Inflorescences Bracts Involucre
Involucres 10–15 mm. in diam. increasing to c. 30 mm. when achenes are mature, the connate part broadly obconic to hemispheric, ± araneose-lanate; outer phyllaries with free portions 8–12 x c. 0.5 mm., linear, bristle-tipped, margins pectinately ciliate with 10–20 or more bristles 2–3 mm. long on each side; innermost phyllaries with free portions 6–13 mm. long, 2–3 mm. wide at the base, shortly triangular in the lower part and tapering-acuminate above, barbellate on the margins and sometimes pectinate-ciliate near the apex.
Morphology Reproductive morphology Flowers Receptacle
Receptacle shallowly alveolate.
Morphology Reproductive morphology Flowers Florets
Rays yellow, 10–25 x 2–5 mm., linear-elliptic. Disk-floret corollas yellow, to c. 6 mm. long, usually not or hardly overtopping the pappus scales of mature achenes, glabrous or somewhat puberulous not araneose; achenes 4–5 mm. long, narrowly obconic, 10–12-ribbed, glandular, densely long-sericeous, hairs shorter than pappus; pappus scales 2-seriate, brownish hyaline, the outer ones increasing to 5–6 mm. long (2–3 mm. long in subsp. aizoides), oblong-elliptic, overlapping, the inner ones c. 2.5 mm. long, oblong-ovate, stipitate.
Ray
Rays yellow, 10–25 x 2–5 mm., linear-elliptic.
Disc
Disk-floret corollas yellow, to c. 6 mm. long, usually not or hardly overtopping the pappus scales of mature achenes, glabrous or somewhat puberulous not araneose; achenes 4–5 mm. long, narrowly obconic, 10–12-ribbed, glandular, densely long-sericeous, hairs shorter than pappus; pappus scales 2-seriate, brownish hyaline, the outer ones increasing to 5–6 mm. long (2–3 mm. long in subsp. aizoides), oblong-elliptic, overlapping, the inner ones c. 2.5 mm. long, oblong-ovate, stipitate.

Native to:

Angola, Botswana, Namibia, Zimbabwe

Hirpicium gorterioides (Oliv. & Hiern) Roessler appears in other Kew resources:

Date Reference Identified As Barcode Type Status Has image?
Schinz, H. [723], South Africa K000377549 Yes

First published in Mitt. Bot. Staatssamml. München 3: 348 (1959)

Accepted by

  • Roskov Y. & al. (eds.) (2018). Species 2000 & ITIS Catalogue of Life Naturalis, Leiden, the Netherlands.

  • Flora Zambesiaca

    Flora Zambesiaca
    http://creativecommons.org/licenses/by-nc-sa/3.0

  • Herbarium Catalogue Specimens

    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

  • Kew Backbone Distributions

    The International Plant Names Index and World Checklist of Selected Plant Families 2022. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

  • Kew Names and Taxonomic Backbone

    The International Plant Names Index and World Checklist of Selected Plant Families 2022. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0