Silphium asteriscus var. asperrimum

• Region

  North America

• Country

  United States of America

• State/Province

  Oklahoma

• County/Municipio

  McCurtain Co.

• Locality

  ca. 0.5 miles S of The Little River along U.S. 70 S of Broken Bow, along the west side of the highway

• Coordinates

  33.9277, -94.8552

• Coordinate Uncertainty (m)

  8163

• Georeferencing Method

  Georeferencing Quick Reference Guide, Version 2012. Coordinates of midpoint were calculated by halving length of road below Little River. Linear extent was calculated as dist. between coord. and end of road below river. Uncertainty was determined using the MaNIS Georef. Calc.

• Geodetic Datum

  WGS84

• Distribution

  Map all specimens of this taxon

University of Texas Herbarium TEX-LL
Silphium asteriscus L.
var. asperrimum (Hook.) J.A. Clevinger
J. A. Clevinger	July 1999
Asteraceae 287-5
THE HERBARIUM OF LOUISIANA STATE UNIVERSITY
PLANTS OF OKLAHOMA
Silphium Integrlfollum Mtchx.
OKLAHOMA: McCurtain County:
THE Little Rtver along U.S.
ca. 0.5 miles S of
------„ ---- 70 S of Broken Bow,
seep and small stream along the west side of the
highway. Sheet 2 of 2.
Lowell E. Urbatsch 6610
12 July 1990
03090733