Asclepias ruthiae Maguire

  • Filed As

    Apocynaceae
    Asclepias ruthiae Maguire

  • Collector(s)

    N. H. Holmgren, P. K. Holmgren, R. C. Barneby 8780 with P. K. Holmgren, R. C. Barneby, 27 May 1978

  • Location

    United States of America. Utah. Emery Co. San Rafael Swell, 4 km (2.5 mi) south of San Rafael River, 45 km (28 mi) airline distance west-northwest of Green River (town).

  • Habitat

    Along drainages of flats. Infrequent.

  • Description

    Stems arising from a thick woody underground rootstock; stems prostrate with the leaves pointing upward; corolla lobes reddish-violet; hoods cream above, reddish below; column red-green. Phenology of specimen: Flower.

  • Identifiers

    NY Barcode: 00950865

    Occurrence ID: 619a860d-7b05-486a-87b7-c509705e1791

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  • Region

    North America

  • Country

    United States of America

  • State/Province

    Utah

  • County/Municipio

    Emery Co.

  • Locality

    San Rafael Swell, 4 km (2.5 mi) south of San Rafael River, 45 km (28 mi) airline distance west-northwest of Green River (town)

  • Township, Range, Section

    T20S, R11E, S27

  • Elevation

    Alt. 1610 m. (5282 ft.)

  • Coordinates

    39.0539, -110.673

  • Georeferencing Method

    TRS Conversion Calculator. Used TRS2LL tool (defunct, now: TRS-data conversion tool, Montana State University, www.esg.montana.edu/gl/trs-data.html) to convert TRS coordinates (Township, Range, Section; Public Land Survey System) to decimal degrees.

  • Distribution

    Map all specimens of this taxon

Asclepias ruthiae Maguire
Det. by James P. Therrien	April 1998
R. L. McGregor Herbarium	KANU
University of Kansas	Lawrence, KS
Asclepias ruthiae Maguire
The New York Botanical Garden
NEW YORK BOTANICAL GARDEN
UTAH. EMERY CO.: San Rafael Swell* ft km (2.5 mi)
south of San Rafael River* ft5 km (28 mi) air-
line distance west-northwest of Green River
(town). T20S, RUE, S27. Elevation 1610 m
(5300 ft).
Infrequent along drainages of flats.
Stems arising from a thick woody underground
rootstock; stems prostrate with the leaves
pointing upward; corolla lobes reddish-
violet;' hoods cream above, reddish below;
column red-green.
Noel H. Holmgren 8780	27	May	,1978
Patricia K. Holmgren
Rupert C. Barneby
Asclepias
Determined by Eric Sundell
00950865