Leaves are twisted
Welcome
Springs August 30, 2015
Photo Details - ŠNicky Davis
1-5, Located in foothills above
Draper, Utah
6. Located Welcome Springs, Washington
County, Utah 30 August 2015
Characteristics
"Sunflower family
(Asteraceae). Yellow
rabbitbrush is a low- to moderate-growing
shrub reaching
mature heights of 20 to 100 cm (8 to 39
in) tall. The stems
can be glabrous or pubescent depending on
variety, and
are covered with pale green to white-gray
bark. The
leaves are narrow and linear to oblong 1
to 6 cm (0.4 to
2.4 in) long and 0.5 to 8 mm (0.02 to 0.3
in) wide and
often appear twisted. The flowers heads
are borne in
numerous compact to open terminal cymes.
The flower
heads are 5 to 7.5 mm (0.2 to 0.3 in) long
and 2 to 4 mm
(0.08 to 0.16 in) wide with glandular or
pubescent bracts.
The individual flowers are yellow 4 to 6
mm (0.16 to 0.25
in) long, producing a 4 mm (0.16 in) long,
hairy achene
(Welsh et al., 2003).
There are five recognized varieties of
yellow rabbitbrush
including varieties planifolius,
lanceolatus, puberulus,
axillaris and viscidiflorus which can be
distinguished by
leaf morphology, stem pubescence and
distribution." NRCS
Butterfly
Larvae Host Plant for
Sagebrush
Checkerspot
- Chlosyne
acastus acastus
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