Arabidopsis lyrata (L.) O'Kane & Al-Shehbaz ssp. petraea (L.) O'Kane & Al-Shehbaz
Annotated by B.A. Bennett, August 2008. Remarks: I.A. Al-Shehbaz October 2011; S.I. Warwick October 2011

Yukon Territory: Ivvavik National Park, Babbage River. Elev. 4 m
69.16659°, -138.32672°
Upper more vegetated Salix alaxensis alluvial river floodplain with Salix glauca, Pedicularis verticillata, Bromus pumpellianus, Astragalus alpinus, Hedysarum boreale, Festuca richardsonii and Leymus mollis. 25% rock and sand. ~30 plants seen in 2 patches. May be biennial or annual, does not appear to be perennial. Leaves not clasping glabrous, petals white < 5mm. Identified as Arabidopsis petraea subsp. umbrosa by L.J. Gillespie 2011 based on the duplicate at CAN590097. Duplicate at DAO844784. EOID 975. Occasional. Flowering and in fruit. Previously identified as Arabis media. Previously identified by B.A. Bennett. 1 duplicate (DAO; CAN).

B.A. Bennett 08-0278, July 20, 2008
With S. Wolfe
BABY, Accession: BABY-06472, Genetic barcoding: CCDB-18357-D6