Sierra Peavine, Sierran Peavine
Lathyrus nevadensis
var. nevadensis
Synonyms: Lathyrus lanceolatus, Lathyrus nevadensis ssp. lanceolatus, Lathyrus nevadensis ssp. nevadensis, Lathyrus
nevadensis ssp. nevadensis ssp. nevadensis, Lathyrus nevadensis var. nuttallii, Lathyrus nevadensis var. pilosellus, Lathyrus nevadensis var. puniceus, Lathyrus nuttallii
The upper three photos of Sierran peavine on
this page were photographed 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.
Note that the tip of the keel is as long as
the wings. The similar
american vetch (
Vicia
americana) has a keel which is much shorter than the wings.
The photo above shows a close-up of the flowers
and pinnately compound leaf of Sierran peavine. The flowers are aobut 20 mm
long. Photographed at about 4100' atop the ridge dividing the Dairy Creek and
Cougar Creek drainages at the southeastern corner of Mt. Adams.........June
13, 2005.
The photo above shows the tip of the style
with the brush-like hairs at its tip oriented on only one side, a characteristic
of the genus Lathyrus. The tip of the style in the similar genus Vicia
has hairs oriented in all directions like a bottlebrush.
The photo above shows a close-up of the flower
of Sierran peavine. Note the keel which is about as long as the wings. Photographed
at about 4100' atop the ridge dividing the Dairy Creek and Cougar Creek drainages
at the southeastern corner of Mt. Adams.........June 13, 2005.
- 
Close-up side and frontal views of
the flower of Sierran peavine. The flowers are aobut 20 mm long. Photographed
at about 4100' atop the ridge dividing the Dairy Creek and Cougar Creek drainages
at the southeastern corner of Mt. Adams........June 13, 2005.
Paul Slichter