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Dive into the research topics where Mark W. Bierner is active.

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Featured researches published by Mark W. Bierner.


Phytochemistry | 1990

Guaianolides, pseudoguaianolides and an aliphatic lactone from Hymenoxys scaposa var. Villosa

Feng Gao; Huiping Wang; Tom J. Mabry; Mark W. Bierner

Abstract Six guaianolides, seven pseudoguaianolides and an aliphatic lactone were isolated from Hymenoxys scaposa var. villosa. Six of these compounds, villosin A, villosin B, 4-acetyl-chamissonolide, 2-desacetyl-2-isobutyryl- chamissonolide, 2-desoxypleniradin and 2-desoxy-14-acetoxy-pleniradin, are reported for the first time.


Lundellia | 2010

Transfer of Hymenoxys argentea var. Thoreauensis to Tetraneuris (Asteraceae: Helenieae: Tetraneuridinae)

Mark W. Bierner; Billie L. Turner

Abstract Based on evidence supporting the recognition of Tetraneuris as a genus separate from Hymenoxys, Hymenoxys argentea var. thoreauensis is basionym of a new combination, Tetraneuris argentea var. thoreauensis.


Lundellia | 2003

Taxonomy of Tetraneuris (Asteraceae: Helenieae: Tetraneurinae)

Mark W. Bierner; Billie L. Turner


Phytochemistry | 1979

Flavonol 3-glycosides in Amblyolepis setigera

Mark W. Bierner


Biochemical Systematics and Ecology | 1973

Sesquiterpene lactones and the systematics of Helenium quadridentaturn and H. elegans

Mark W. Bierner


Biochemical Systematics and Ecology | 2002

Sesquiterpene lactones and flavonoids from Hymenoxys jamesii (Asteraceae) and their systematic significance

Ahmed A. Ahmed; Ahmed Y. Mohamed; Otmar Spring; Mark W. Bierner; Tom J. Mabry


Lundellia | 2001

Taxonomy of Hymenoxys subgenus Picradenia and a Conspectus of the Subgenera of Hymenoxys (Asteraceae: Helenieae: Tetraneurinae)

Mark W. Bierner


Biochemical Systematics and Ecology | 1994

Sesquiterpene lactones and one flavonoid from Hymenoxys scaposa (DC.) K. Parker var. linearis (Nutt) K. Parker

Vera L. Ferracini; Feng Gao; Mark W. Bierner; Tom J. Mabry


Archive | 2010

(Vol.13, 2010-12) Transfer Of Hymenoxys Argentea Var. Thoreauensis to Tetraneuris (Asteraceae: Helenieae: Tetraneuridinae)

Mark W. Bierner; Billie L. Turner


Archive | 2009

(Vol.12, 2009-12) Hymenoxys Ambigens Var. Wagneri (Asteraceae: Helenieae: Tetraneurinae), A New Variety in Hymenoxys Subgenus Plummera from Arizona

Mark W. Bierner

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Billie L. Turner

University of Texas at Austin

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Tom J. Mabry

University of Texas at Austin

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Feng Gao

University of Texas at Austin

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Otmar Spring

University of Hohenheim

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Huiping Wang

University of Texas at Austin

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Robert K. Jansen

University of Texas at Austin

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Vera L. Ferracini

University of Texas at Austin

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