Castilleja rhexifolia
(Rose Paintbrush)
Scrophulariaceae (Snapdragon Family)
Subalpine, alpine. Meadows. Summer.
Madden Peak, June 23,
2004.
Kennebec Pass, July 18, 2006.
Castilleja
rhexifolia bract colors range from subtle magentas to flaming rose
to hot iridescent pink to soft yellow-purple. For pure outright amazing color, this
Paintbrush is hard to surpass. And all of these colors are often
visible in one small area. But you will have to hike to meadows in
the subalpine and alpine zones where Castilleja rhexifolia joins Buttercups,
numerous Sunflowers, Bistorts, King's Crown, and more in one of the
finest of all wildflower displays.
Castilleja rhexifolia has a long
blooming time, from just after snow melt in June to September. It grows to twelve
inches tall, but on alpine tundra it is
no more than a few inches tall.
Leaves typically are
red-tinted and have three prominent veins. Upper colored
bracts are often very shallowly cut into three with the outer two
divisions quite small.
Castilleja
rhexifolia with its red hues hybridizes with the soft yellow hues of
Castilleja sulphurea to produce a wide variety of red/yellow/purple
bract and flower colorings. (But Intermountain Flora indicates
that although C. rhexifolia and C. sulphurea "are
morphologically indistinguishable" and occupy the same habitats,
"there is little evidence of hybridization".) At
its lower limits in mid-mountain altitudes, C. rhexifolia
hybridizes with C. miniata. The resulting flowers often
have the wild colors of the former and the larger, more deeply cut
bracts of the latter.
"Rhexifolia" is Greek for "broken
foliage" and probably refers to the strongly veined leaves and
their resemblance to the veins of the eastern U.S. genus, Rhexia.
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