Arctomecon californica

Torrey & Frémont in J. C. Frémont

in J. C. Frémont, Rep. Exped. Rocky Mts., 312. 1845.

Common names: Golden bearclaw-poppy
Conservation concernEndemicIllustrated
Treatment appears in FNA Volume 3.

Plants subscapose, to 6 dm. Leaves 3-20 cm; blade shallowly to deeply 3-7-lobed distally, 5 cm wide distally, copiously long-pilose, sometimes also minutely hirsute. Inflorescences 3-20-flowered, branching, glabrous throughout or long-pilose proximally; buds glabrous. Flowers: sepals glabrous; petals caducous, 6, deep yellow, 2.5-4 cm; filaments not dilated distally; style absent. Capsules persistent, obconic, 1-2.5 cm, dehiscing not more than 1/4 length. 2n = 24.


Phenology: Flowering mid spring; fruiting early summer.
Habitat: Barren shales that are heavily gypsiferous or otherwise chemically unusual (borate-bearing, lithium-bearing), creosote bush zone
Elevation: 500-1000 m

Discussion

Of conservation concern.

Arctomecon californica is found in mostly small populations ranging from the vicinity of Las Vegas, Nevada, eastward to extreme northwestern Arizona near Lake Mead. It is known otherwise only from a single collection in Washington County, Utah.

Selected References

None.

Lower Taxa

None.

"/" is not declared as a valid unit of measurement for this property.

... more about "Arctomecon californica"
Susan E. Meyer +
Torrey & Frémont in J. C. Frémont +
palmate +  and subpalmate +
hirsute;long-pilose +
3-7-lobed +
5 cm50 mm <br />0.05 m <br /> (?) +
not dehiscing +
unseparated +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Golden bearclaw-poppy +
Ariz. +, Nev. +  and Utah. +
500-1000 m +
sessile +, pedicellate +  and symmetric +
transverse +, poricidal +, valvate +  and dehiscence +
Barren shales that are heavily gypsiferous or otherwise chemically unusual (borate-bearing, lithium-bearing), creosote bush zone +
flexuous +
branching +  and 3-20-flowered +
paniculate +  and racemose +
terminal +  and axillary +
long-pilose +  and glabrous +
3 cm30 mm <br />0.03 m <br /> (20 cm200 mm <br />0.2 m <br />) +
long-bristled +  and acute +
1-2-locular or +  and incompletely completely multilocular +
distinct +
obovate +
2 times number of sepals +
2.5 cm25 mm <br />0.025 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Flowering mid spring +  and fruiting early summer. +
3-6-carpellate +
in J. C. Frémont, Rep. Exped. Rocky Mts., +
persistent +
colored +, white +  and clear +
carunculate +  and arillate +
dark-brown +
several;many +
0.15 cm1.5 mm <br />0.0015 m <br /> (?) +  and 0.3 cm3 mm <br />0.003 m <br /> (?) +
distinct +
3 +  and 2 +
obovate +
Conservation concern +, Endemic +  and Illustrated +
branching +  and leafy +
Arctomecon californica +
Arctomecon +
species +
evergreen +  and perennial +