Loeseliastrum franciscanum R. Crawford, a local endemic known from three populations in the eastern San Francisco volcanic field of Coconino County, northern Arizona is newly described and illustrated here. This species is similar to L. depressum (M. E. Jones ex A. Gray) J. M. Porter & L. A. Johnson, but is distinguished by its strongly bilabiate corolla, long exserted stamens, pinnatifid leaves, and mostly tridentate inflorescence bracts. A revised key to Loeseliastrum is presented.
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1 January 2017
A New Species of Loeseliastrum (Polemoniaceae) From Northern Arizona
Rich Crawford,
Tina Ayers
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Madroño
Vol. 64 • No. 1
Jan 2017
Vol. 64 • No. 1
Jan 2017
endemic
Loeseliastrum
northern Arizona
Polemoniaceae
taxonomy