Project 3346: C. Björk. 2019. OVERLOOKED DIVERSITY IN EXOTIC TARAXACUM IN BRITISH COLUMBIA, CANADA. Botany. 97 (6):329-346.
Specimen: Taraxacum retroflexum (UBC/38515)
View: Habit

Abstract

In almost all North American literature, including in British Columbia, weedy Taraxacum species have been named as T. officinale and T. erythrospermum (or T. laevigatum). This coarse taxonomic approach ignores great diversity in morphology, ecology and geographical distributions among the exotic established species. Taxonomic refinement would facilitate floristics and ecological studies when exotic Taraxacum species are involved, and the taxonomy of native Taraxacum must first determine which are and which are not native species, which in turn requires knowledge of sectional identity of any specimen. Exotic Taraxacum specimens were identified to species and taxonomic sections using refined species and sectional concepts that align with taxonomic standards used in the native ranges of the species in Europe. Seven exotic sections and one informally named group are found to be present in British Columbia (Borea, Boreigena, Celtica, Erythrosperma, Hamata, Naevosa, Taraxacum, and the T. fulvicarpum group). The number of exotic Taraxacum species known to occur in British Columbia to date exceeds 100. A key to the exotic sections of British Columbia Taraxacum is presented and the sections are characterized. Species known to date are listed by their sectional placement. Notes are also presented on distinguishing native from exotic Taraxacum in British Columbia.


Read the article »

Article DOI: 10.1139/cjb-2018-0094

Project DOI: 10.7934/P3346, http://dx.doi.org/10.7934/P3346
This project contains
  • 209 Media
  • 113 Taxa
  • 119 Specimens
Total size of project's media files: 603.92M

Download Project SDD File
Currently Viewing:
MorphoBank Project 3346

    Authors' Institutions

    • University of British Columbia

    • Beaty Biodiversity Museum



    Members

    member name taxa specimens media
    Curtis Bjork
    Project Administrator
    Last logged in 02/13/19
    113119209


    Project has no matrices defined.



    Project views

    type number of views Individual items viewed (where applicable)
    Total project views31422
    Project overview735
    Taxon list324
    Bibliography197
    Specimen list11070
    Media views18504Media search (1215 views); M645546 (114 views); M645539 (148 views); M645540 (116 views); M645541 (119 views); M645542 (121 views); M645543 (131 views); M645544 (125 views); M645545 (149 views); M645547 (128 views); M645548 (120 views); M645549 (122 views); M645550 (125 views); M645551 (124 views); M645552 (112 views); M645553 (158 views); M645554 (125 views); M645555 (133 views); M645556 (129 views); M645557 (132 views); M645558 (125 views); M645559 (116 views); M645560 (116 views); M645561 (118 views); M645562 (136 views); M645563 (120 views); M645564 (120 views); M645565 (117 views); M645566 (111 views); M645567 (116 views); M645568 (120 views); M645569 (118 views); M645570 (120 views); M645571 (115 views); M645572 (122 views); M645574 (118 views); M645575 (117 views); M645576 (107 views); M645577 (115 views); M645578 (129 views); M645579 (115 views); M645580 (117 views); M645581 (112 views); M645582 (101 views); M645583 (116 views); M645584 (98 views); M645585 (114 views); M645586 (89 views); M645587 (88 views); M645588 (87 views); M645589 (90 views); M645590 (91 views); M645592 (91 views); M645593 (90 views); M645594 (88 views); M645595 (87 views); M645596 (93 views); M645597 (88 views); M645598 (87 views); M645599 (97 views); M645600 (85 views); M645601 (103 views); M645602 (87 views); M645603 (104 views); M645604 (91 views); M645605 (85 views); M645606 (103 views); M645608 (84 views); M645609 (103 views); M657062 (92 views); M657063 (93 views); M657064 (99 views); M657065 (91 views); M657066 (86 views); M657067 (103 views); M657068 (102 views); M657069 (87 views); M657070 (87 views); M657071 (92 views); M657072 (86 views); M657073 (86 views); M657074 (88 views); M657075 (88 views); M657076 (90 views); M657078 (91 views); M657080 (95 views); M657081 (91 views); M657082 (97 views); M657083 (87 views); M657084 (86 views); M657085 (90 views); M657086 (86 views); M657087 (86 views); M657088 (94 views); M657089 (80 views); M657090 (86 views); M657091 (94 views); M657104 (100 views); M657105 (87 views); M657106 (85 views); M657107 (88 views); M657108 (62 views); M657109 (60 views); M657110 (62 views); M657111 (63 views); M657112 (64 views); M657113 (66 views); M657114 (64 views); M657115 (64 views); M657116 (60 views); M657117 (62 views); M657118 (62 views); M657119 (61 views); M657131 (62 views); M657132 (64 views); M657133 (64 views); M657134 (65 views); M657135 (62 views); M657136 (62 views); M657137 (60 views); M657138 (61 views); M657139 (65 views); M657140 (63 views); M657141 (61 views); M657142 (63 views); M657143 (65 views); M657144 (61 views); M657145 (65 views); M657146 (62 views); M657147 (62 views); M657148 (61 views); M657149 (64 views); M657150 (63 views); M657151 (64 views); M657152 (63 views); M657153 (62 views); M657154 (62 views); M657155 (63 views); M657156 (64 views); M657157 (65 views); M657158 (64 views); M657159 (63 views); M657161 (63 views); M657162 (64 views); M657163 (65 views); M657164 (61 views); M657165 (60 views); M657166 (59 views); M657167 (63 views); M657168 (61 views); M657169 (64 views); M657170 (65 views); M657171 (65 views); M657172 (63 views); M657173 (63 views); M657174 (61 views); M657175 (67 views); M657176 (65 views); M657177 (64 views); M657178 (64 views); M657179 (60 views); M657180 (56 views); M657181 (61 views); M657182 (63 views); M657183 (58 views); M657184 (62 views); M657185 (64 views); M657186 (65 views); M657187 (62 views); M657188 (64 views); M657189 (65 views); M657190 (62 views); M657191 (65 views); M657192 (62 views); M657193 (63 views); M657194 (62 views); M657195 (55 views); M657196 (60 views); M657197 (62 views); M657198 (63 views); M657199 (61 views); M657200 (63 views); M657226 (56 views); M657227 (59 views); M657228 (62 views); M657229 (60 views); M657230 (64 views); M657231 (60 views); M657232 (64 views); M657233 (63 views); M657234 (62 views); M657240 (59 views); M657241 (60 views); M657242 (63 views); M657243 (62 views); M657244 (60 views); M657245 (66 views); M657246 (63 views); M657247 (63 views); M657248 (62 views); M657249 (64 views); M657250 (63 views); M657251 (60 views); M657252 (64 views); M657253 (60 views); M657254 (66 views); M657255 (61 views); M657257 (65 views); M657258 (62 views); M657259 (62 views);
    Views for media list591
    Documents list1




    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project115
    Project downloads81
    Media downloads34M645542 (1 download); M645539 (2 downloads); M645544 (1 download); M645549 (1 download); M645550 (1 download); M645551 (1 download); M645567 (1 download); M645568 (1 download); M645576 (1 download); M645588 (1 download); M645589 (1 download); M645594 (1 download); M645595 (1 download); M645596 (1 download); M645605 (1 download); M645606 (1 download); M645609 (1 download); M657090 (1 download); M657105 (1 download); M657106 (1 download); M657108 (1 download); M657109 (1 download); M657110 (1 download); M657111 (1 download); M657139 (1 download); M657142 (1 download); M657154 (1 download); M657173 (1 download); M657251 (1 download); M657258 (1 download); M657259 (1 download); M645545 (2 downloads);