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  1. Published

    Euphorbia venefica Trémaux ex Kotschy (Euphorbiaceae) and other shrub-like cylindrically stemmed Euphorbia with spirally arranged single spines

    Weber, O., Atinafe, E., Awas, T. & Friis, Ib, 2020, In: Societe des Naturalistes Luxembourgeois. Bulletin. 122, p. 57-82

    Research output: Contribution to journal › Journal article › Research › peer-review

  2. Published

    Debregeasia australis sp. nov. (Urticaceae), with a new synopsis of and a new key to the genus

    Wilmot-Dear, C. M. & Friis, Ib, 19 Jun 2012, In: Edinburgh Journal of Botany. 69, 2, p. 301–311 11 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  3. Published

    Cypholophus anisoneurus comb. nov. – an endemic species of Urticaceae from Vanuatu and Solomon Islands hitherto misplaced in Boehmeria

    Wilmot-Dear, C. M. & Friis, Ib, 2010, In: Nordic Journal of Botany. 28, 3, p. 285-287 3 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  4. Published

    Crotalaria trifoliolata (Leguminosae: Papilionoideae), a previously incompletely known Ethiopian endemic rediscovered after 120 years

    Friis, Ib & Weber, O., 2014, In: Kew Bulletin. 69, 4, 9 p., 9536.

    Research output: Contribution to journal › Journal article › Research › peer-review

  5. Published

    Commiphora oddurensis Chiov. and C. suffruticosa Teshome (Burseraceae): taxonomy, distribution, ecology and conservation status

    Demissew, S. & Friis, Ib, Dec 2013, In: Webbia. 68, 2, p. 133-145 13 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  6. Published

    Cenni monografici sul paese dei Gherire (Mogadiscio, 1938) – a pioneer work on the Gerire Hills in western Ogaden, south-eastern Ethiopia : – introduced, translated and provided with annotations and a revision of the botanical collections

    Friis, Ib, 30 Apr 2019, In: Webbia. 74 (supplement), p. 1-108

    Research output: Contribution to journal › Journal article › Research › peer-review

  7. Published

    Alchornea cordifolia (Schumach. & Thonn.) Muell. Arg. (Euphorbiaceae), a disjunct Guineo-Congolian tree found in Ethiopia as dominant in riverine forest.

    Friis, Ib & Harris, T., Dec 2013, In: Webbia. 68, 2, p. 147-154 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  8. Published

    Virgiana Billings, 1857: on top of the world after 150 years

    Rasmussen, Christian Mac Ørum & Harper, D. A. T., 2008, In: Palaeontology Newsletter. 66, p. 52 1 p.

    Research output: Contribution to journal › Conference abstract in journal › Research

  9. Published

    Sesbania melanocaulis, sp.nov. (Leguminosae subfam. Papilionaceae) from SW Ethiopia

    Bidgood, S. & Friis, Ib, 1998, In: Nordic Journal of Botany. 18, 2, p. 209-213

    Research output: Contribution to journal › Journal article › Research › peer-review

  10. Published

    Sciaplea Rauschert (1982) is a synonym of Dialium L. (1767)

    Friis, Ib, 1984, In: Taxon. 33, p. 505-506

    Research output: Contribution to journal › Journal article › Research › peer-review

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