Silphium radula var. gracile (A.Gray) Clevinger

• Region

  North America

• Country

  United States of America

• State/Province

  Texas

• County/Municipio

  Jackson Co.

• Locality

  Near Horseshoe Lake

• Coordinates

  29.1, -96.8243

• Coordinate Uncertainty (m)

  1424

• Georeferencing Method

  BioGeomancer, Guide to Best Practices for Georefer. Coordinates of the lake center were located. Linear extent was calculated as the doubled distance between coordinates and farthest area of lake (=200% of linear extent). Uncertainty radius was determined using the MaNIS Georef. Calc.

• Geodetic Datum

  WGS84

• Distribution

  Map all specimens of this taxon

University of Texas Herbaria, TEX-LL
Silphium radula Nutt,
var. gracile (A.Gray) J.A.Clevinger
J. A. Clevinger	July	1999
Silphium reverchonii Bush.
CFB 1 8	"7^
DET. T. RICHARD FISHER *
HERBARIUM OF THE
NEW YORE BOTANICAL GARDEN
Plants of Texas
No.10337	J.A	.Drushel	7/1/35
Silphiun asperrimum Hook.
Near Horseshoe lake, Jackson Co.,Tex.
03109715