[Peavines: The Genus Lathyrus in Mt. Adams Country]

Nevada Peavine, Pinewoods Peavine, Thick-leaved Peavine

Lathyrus lanszwertii var. aridus

Synonym: Lathyrus lanszwertii ssp. aridus

Flowers of Nevada Peavine, Pinewoods Peavine: Lathyrus lanszwertii var. aridus (Synonym: Lathyrus lanszwertii ssp. aridus)

The upper three photos on this page were all taken at a DNR rock quarry at about 4100' abreast a ridge dividing the Dairy Creek and Cougar Creek drainages at the southeastern corner of Mt. Adams.........May 29, 2005. Plants on Mt. Adams are erect, rather than lax, and often lack tendrils at the leaf apex.

LEaf and tendril of Nevada Peavine, Pinewoods Peavine: Lathyrus lanszwertii var. aridus (Synonym: Lathyrus lanszwertii ssp. aridus)

The photo above shows the long, narrow leaflets, short tendril and diminutive flowers of thick-leaved peavine as seen at a DNR rock quarry at about 4100' abreast a ridge dividing the Dairy Creek and Cougar Creek drainages at the southeastern corner of Mt. Adams........May 29, 2005. Many of the leaves of this species at this site and others on Mt. Adams either have a very short, bristle-like tendril or lack the tendrils all together.

Leaf and tendril of Nevada Peavine, Pinewoods Peavine: Lathyrus lanszwertii var. aridus (Synonym: Lathyrus lanszwertii ssp. aridus)

The photo above shows the long, narrow leaflets of thick-leaved peavine as seen at a DNR rock quarry at about 4100' abreast a ridge dividing the Dairy Creek and Cougar Creek drainages at the southeastern corner of Mt. Adams.........May 29, 2005.

Paul Slichter