Abstract Detail

Systematics

Tressel, Lydia [1], Vincent, Michael [2], Moore, Rich [3], Tepe, Eric [4].

A Taxonomic Review of the Trifolium depauperatum species complex.

The plant family Fabaceae is known for its economic importance, including important crop plants. Among important crops is the well-known clover genus, Trifolium, encompassing about 230 species (Zohary & Heller 1984; Ellison et al. 2006), that likely is Mediterranean in origin. Trifolium depauperatum Nutt., commonly known as cowbag clover or dwarf sack clover, is native to western North and South America, and has been found in British Columbia, Washington, Oregon, Idaho, California, Mexico, and Chile. Trifolium depauperatum has not been studied in detail and encompasses a great deal of morphological variation. The most recently published names associated with the T. depauperatum species complex include T. depauperatum var. depauperatum, T. depauperatum var. amplectens, T. depauperatum var. truncatum, and T. hydrophilum (Vincent and Isely 2012). Herbarium specimens of the Trifolium depauperatum species complex collected throughout western North and South America were studied. Specimens representing the known geographical range of the species complex were examined in order to understand the range of morphological characteristics based on geographic location. Data for 35 characters were analyzed using the statistical program R. Analyses of the data show that there are four clusters of OTU’s, which correspond to the four currently recognized taxa.

1 - Biology Dept., Miami University, Oxford, OH, 45056, United States
2 - Miami University, Department Of Biology, Herbarium, 79 Upham Hall, 100 Bishop Circle, Rm. 79 Upham Hal, Oxford, OH, 45056, United States
3 - Miami University, Biology, 316 Pearson, Oxford, OH, 45056, United States
4 - University of Cincinnati, Biology, 614 Rieveschl Hall, Cincinnati, OH, 45229, USA

Keywords:
Fabaceae
section Involucrarium
Trifolium depauperatum.

Presentation Type: Oral Paper
Session: SYS2, Systematics II: Rosids part B to Basal Asterids
Location: Virtual/Virtual
Date: Tuesday, July 28th, 2020
Time: 12:45 PM
Number: SYS2002
Abstract ID:374
Candidate for Awards:None