Arctomecon merriamii

Coville

Proc. Biol. Soc. Wash. 7: 66. 1892.

Common names: Great bearclaw-poppy
EndemicConservation concern
Treatment appears in FNA Volume 3.

Plants scapose, to 4 dm. Leaves 4-12 cm; blade nearly unlobed to shallowly 3-7-lobed distally, to 3.5 cm wide distally, copiously long-pilose. Inflorescences 1 (-6) -flowered, simple, glabrous; buds long-pilose. Flowers: sepals copiously long-pilose; petals caducous, 6, white, 2.5-4 cm; filaments dilated distally; style 1-1.5 mm. Capsules persistent, oblanceoloid, 2.5-4 cm, dehiscing not more than 1/4 length. 2n = 24.


Phenology: Flowering mid spring; fruiting early summer.
Habitat: Barren, calcareous, scree slopes and weakly gypsiferous shales interbedded with marine limestones, creosote bush and blackbrush zones
Elevation: 600-1700 m

Discussion

Of conservation concern.

Arctomecon merriamii is found in small populations at scattered stations from Death Valley in southeastern California to the Meadow Valley Wash of southeastern Nevada.

Selected References

None.

Lower Taxa

None.

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

... more about "Arctomecon merriamii"
Susan E. Meyer +
Coville +
palmate +  and subpalmate +
long-pilose +
nearly unlobed +  and shallowly 3-7-lobed +
0cm;3.5cm +
long-pilose +
not dehiscing +
unseparated +
oblanceoloid +
2.5 cm25 mm <br />0.025 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Great bearclaw-poppy +
Calif. +  and Nev. +
600-1700 m +
sessile +, pedicellate +  and symmetric +
transverse +, poricidal +, valvate +  and dehiscence +
Barren, calcareous, scree slopes and weakly gypsiferous shales interbedded with marine limestones, creosote bush and blackbrush zones +
flexuous +
simple +  and 1(-6)-flowered +
paniculate +  and racemose +
terminal +  and axillary +
4 cm40 mm <br />0.04 m <br /> (12 cm120 mm <br />0.12 m <br />) +
long-bristled +  and acute +
1-2-locular or +  and incompletely completely multilocular +
distinct +
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 +
Proc. Biol. Soc. Wash. +
persistent +
colored +, white +  and clear +
carunculate +  and arillate +
several;many +
1.5mm +  and 3mm +
distinct +
long-pilose +
3 +  and 2 +
obovate +
Endemic +  and Conservation concern +
branching +  and leafy +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Arctomecon merriamii +
Arctomecon +
species +
evergreen +  and perennial +