You selected Lepidium montanum var. canescens (Thell.) C.L. Hitchc. This is a synonym for:

Accepted scientific name:
Lepidium montanum Nutt. (accepted name) 1 literature reference for Lepidium montanum Nutt.
Synonyms:
Lepidium albiflorum A. Nelson & Kenn. (synonym)
Lepidium brachybotryum Rydb. (synonym)
Lepidium corymbosum Hook. & Arn. (synonym)
Lepidium crandallii Rydb. (synonym)
Lepidium heterophyllum (S. Watson) M.E. Jones (synonym)
Lepidium integrifolium var. heterophyllum S. Watson (synonym)
Lepidium jonesii Rydb. (synonym)
Lepidium montanum var. alpinum S. Watson (synonym)
Lepidium montanum var. canescens (Thell.) C.L. Hitchc. (synonym)
Lepidium montanum var. canescens f. cinereum C.L. Hitchc. (synonym)
Lepidium montanum var. cinereum (C.L. Hitchc.) Rollins (synonym)
Lepidium montanum var. coloradense Rollins (synonym)
Lepidium montanum var. glabrum C.L. Hitchc. (synonym)
Lepidium montanum var. jonesii (Rydb.) C.L. Hitchc. (synonym)
Lepidium montanum var. montanum Nutt. (synonym)
Lepidium montanum var. montanum f. wyomingense C.L. Hitchc. (synonym)
Lepidium montanum var. neeseae S.L. Welsh & Reveal (synonym)
Lepidium montanum var. nevadense Rollins (synonym)
Lepidium montanum var. tenellum (L.O. Williams) C.L. Hitchc. (synonym)
Lepidium montanum var. todiltoensis N.D. Atwood & S.L. Welsh (synonym)
Lepidium montanum var. wyomingense (C.L. Hitchc.) C.L. Hitchc. (synonym)
Lepidium philonitrum A. Nelson & J.F. Macbr. (synonym)
Lepidium scopulorum M.E. Jones (synonym)
Lepidium scopulorum forma canescens Thell. (synonym)
Lepidium tenellum L.O. Williams (synonym)
Lepidium utahense M.E. Jones (synonym)
Lepidium utaviense Regel (synonym)
Common names: -
Classification:
Plantae
Phylum Magnoliophyta
Class Magnoliopsida
Order Capparales
Family Brassicaceae
Genus Lepidium
Distribution: -
Additional data: -
Source database: Brassicaceae, 2, Oct 2009
Latest taxonomic scrutiny: Warwick S.I. , Francis A. & Al-Shehbaz I.A., 2009
Online resource: -
CoL taxon LSID: urn:lsid:catalogueoflife.org:taxon:2823c3de-60a7-102d-be47-00304854f810:ac2010