Calamagrostis purpurascens R. Br. ssp. tasuensis Calder & Roy L. Taylor ssp. nov.
[= Calamagrostis sesquiflora]

British Columbia: Queen Charlotte Islands. About 20 miles south of Moresby Logging Camp.
52° 55' N, 132° 3' W
Occasional and scattered on cliff ledges and at base of cliffs above treeline. Voucher specimen cited in Flora of the Queen Charlotte Islands. I. Systematics of the Vascular Plants, by James A. Calder and Roy L. Taylor. Phenology: Fruiting. Paratype: Calamagrostis purpurascens R. Br. ssp. tasuensis Calder & Roy L. Taylor. Published 1965. Can. J. Bot. 43:1388. 1965.

J. A. Calder 23126, 29 July - 2 Aug. 1957
With D. B. O. Savile, R. L. Taylor
COLO, Accession: 231770, Barcode: COLO00352328