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Costea, M, Sanders, A, Waines, G2001Notes on some little known Amaranthus taxa (Amaranthaceae) in the United States
Costea, M, Sanders, A, Waines, G2001Preliminary results towards a revision of the Amaranthus hybridus species complex (Amaranthaceae)
Costea, M, Tardif, FJ2003Conspectus and notes on the genus Amaranthus in Canada
Costea, M, Tardif, FJ2002Taxonomy of the most common weedy European Echinochloa species (Poaceae: Panicoideae) with special emphasis on characters of the lemma and caryopsis
Cox, PB, Urbatsch, LE1994A taxonomic revision of Rudbeckia subg
Cramer, H1976Drei Neuburger in Augsburgs Flora
Crawford, DJ, Kim, SC2001A cladistic analysis of morphological features in Bidens L. and Coreopsis L. (Asteraceae-Heliantheae) with notes on generic delimitation and systematics
Crawford, DJ, Mort, ME2005Phylogeny of eastern North American Coreopsis (Asteraceae-Coreopsideae): insights from nuclear and plastid sequences, and comments on character evolution
Crawley, M1995The inexorable spread of Conyza sumatrensis
Cristaudo, A, R. Giudice, L1999Artemisia annua L. (Asteraceae) new for the Sicilian flora
Cristofolini, C2006A reassessment of the sections of the genus Cytisus Desf. (Cytiseae, Leguminosae)
Cronquist, A1947Revision of the North American species of Erigeron, north of Mexico
Cronquist, A1943The separation of Erigeron from Conyza
Crook, CS1997A (very) provisional checklist of conifers in the British Isles
Csiky, J, Kiraly, G, Olah, E, Pfeiffer, N, Virok, V2004Panicum dichotomiflorum Michaux., a new element in the Hungarian flora
Cubas, P, Pardo, C, Tahiri, H2002Molecular approach to the phylogeny and systematics of Cytisus (Leguminosae) and related genera based on nucleotide sequences of nrDNA (ITS region) and cpDNA (trnL-trnF intergenic spacer)
Cuccuini, P2002Il genere Parapholis C. E
Cullen, J1965Hesperis
Czarnecka, B1996Clonal organization of population of Asarum europaeum and Maianthemum bifolium in contrasting woodland habitats
B. Dadakova, D_ákF &1976The chromosome morphology of Hesperis matronalis subsp. matronalis and related diploid taxa
Danin, A2004Arundo (Gramineae) in the Mediterranean reconsidered
Danin, A1976Notes on four adventive Composites in Israel. Notes Roy
Danin, A1973On three adventive species of Conyza (Compositae) in Greece
Danser, BH1921Bijdrage tot de kennis der Nederlandsche Rumices
Danser, BH1917Over Rumex fennicus, Rumex weberi en Rumex schreberi
Dapper, H1971Beiträge zur Ökologie von Chenopodium botrys L.: 2. Produktion an Ruderalstandorten
Darbyshire, SJ, Cayouette, J1995Identification of the species in the Panicum capillare complex (Poaceae) from eastern Canada and adjacent New York State
Dardaine, P1984Impatiens capensis Meerb. (Impatiens biflora Walter): nouvelle espece pour la Meurthe-et-Moselle
Dauphin, P1995Sur l_expansion de Conyza floribunda en Gironde
Davies, AMR, Maxted, N, Van der Maesen, LJG, A.M.R, D, N, M, L.J.G, Vder Maesen2007A natural infrageneric classification for Cicer (Leguminosae, Cicereae)
Davis, CJS2010Malva aethiopica, a new name for Lavatera abyssinica (Malvaceae): an endemic species of the Ethiopian Highlands
De Clercq, R2009Een nieuwe vondst voor de Vlaamse Ardennen. Mansoor _ Asarum europaeum
De Beer, D2006Glyceria canadensis
De Beer, D2006Corispermum pallasii
De Beer, D2002Een nieuwe vondst van Glyceria canadensis (Poaceae) in Kessel (Antwerpen)
De Beer, D, De Vlaeminck, R2008Myriophyllum heterophyllum, een nieuwe invasieve waterplant
De Beer, D, De Vlaeminck, R2008Myriophyllum heterophyllum, een nieuwe invasieve waterplant
Debray, M1968Les espèces du genre Bidens introduites en France. Rectifications et nouvelles données
Debray, M1964Clé de détermination des espèces du genre Bidens connue en Belgique et dans les régions voisines
Debray, M1963Les espèces du genre Bidens introduites en France. Morphologie et géographie
Degtjareva, GV, Valiejo-Roman, CM, Kramina, TE, Mironov, EM, Samigullin, TH, Sokoloff, DD2003Taxonomic and phylogenetic relationships between Old World and New World members of the tribe Loteae (Leguminosae): new insights from molecular and morphological data, with special emphasis on Ornithopus
Delaigue, J1987Contribution à la connaissance d'Erigeron karvinskianus DC. en France (Composées, Radiées)
DeLisle, DG1963Taxonomy and distribution of the genus Cenchrus
Delvosalle, L1966A propos de Cirsium tuberosum (L.) All. et de quelques autres Cirsium hygrophiles
Delvosalle, L1953Quelques adventices nouvelles pour la Belgique. Bull. Soc. Roy
Demarest, L1996Een nieuwe groeiplaats van Ludwigia grandiflora (Michaux) Greuter et Burdet: een bedreiging voor de Blankaart?
Demarest, L1996Een nieuwe groeiplaats van Ludwigia grandiflora (Michaux) Greuter et Burdet: een bedreiging voor de Blankaart?
Denters, T2004Stadsplanten
Denters, T1996Erigeron karvinskianus DC. (Muurfijnstraal), een nieuwe inheemse urbane soort
Denys, L, Packet, J, Verhaegen, F2008Een tweede groeiplaats van Saururus cernuus in Vlaanderen


Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith