Festuca of North America
Fl. Bor. Amer. 2: 252, tab. 233. 1840. F. altaica subsp. scabrella (Torrey) Hultén, Fl. Alaska and Yukon 1: 241. 1942. F. altaica var. scabrella (Torrey) Breitung, Am. Midl. Natl. 58: 12. 1957. Type: Canada. Alberta: Rocky Mountains, 1826, T. Drummond 187; Holotype: originally at NY, Torrey Herbarium. "Ex. Herb. Torrey". Isotype: GH! Alexeev (1982) noted that the syntypes "Drummond" numbers "71, 187, 212" are at K and NY!
Synonym of F. altaica. In examining the isotype and possible second isotype collections of Drummond from GH, in 1994, (see image library) the first author agreed with the annotations made by L.E. Pavlick (Sept. 1981) that these specimens are plants of F. altaica sensu stricta. F. scabrella var. major Vasey = F. campestris Rydb., F. scabrella Torrey in Hook. subsp. hallii (Piper) W.A. Weber = F. hallii Vasey.
The interactive key provides access to the character list, illustrations, full and partial descriptions, diagnostic descriptions, differences and similarities between taxa, lists of taxa exhibiting specified attributes, and summaries of attributes within groups of taxa.
Cite this publication as: ‘Aiken, S.G., Dallwitz, M.J., McJannet, C.L. and Consaul, L.L. 1996 onwards. Festuca of North America: descriptions, illustrations, identification, and information retrieval. Version: 19th October 2005. http://delta-intkey.com’. Aiken, Dallwitz, McJannet, and Consaul (1997) should also be cited (see References).