Arctomecon humilis

Coville

Proc. Biol. Soc. Wash. 7: 67. 1892.

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

Plants subscapose, to 2.5 dm. Leaves 1-8 cm; blade shallowly to deeply 3-5-lobed distally, to 1.6 cm wide distally, minutely hirsute, sparsely long-pilose. Inflorescences 2-7-flowered, branching, glabrous or nearly so; buds glabrous. Flowers: sepals glabrous; petals marcescent, 4, white, 1.2-2.5 cm; filaments somewhat dilated distally; style 1 mm. Capsules ovoid, 0.8-1.5 cm, dehiscing 1/3-1/2 length, deciduous soon after. 2n = 24.


Phenology: Flowering late spring; fruiting mid summer.
Habitat: Barren, heavily gypsiferous shales, creosote bush zone
Elevation: 700-1100 m

Discussion

Of conservation concern.

Extant populations of Arctomecon humilis are known only from the area within 20 km of St. George in extreme southwestern Utah.

Selected References

None.

Lower Taxa

None.

"/3" is not declared as a valid unit of measurement for this property.

... more about "Arctomecon humilis"
Susan E. Meyer +
Coville +
palmate +  and subpalmate +
long-pilose;hirsute +
3-5-lobed +
0 cm0 mm <br />0 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
unseparated +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Dwarf bearclaw-poppy +
700-1100 m +
sessile +, pedicellate +  and symmetric +
transverse +, poricidal +, valvate +  and dehiscence +
Barren, heavily gypsiferous shales, creosote bush zone +
flexuous +
branching +  and 2-7-flowered +
paniculate +  and racemose +
terminal +  and axillary +
nearly +  and glabrous +
1 cm10 mm <br />0.01 m <br /> (8 cm80 mm <br />0.08 m <br />) +
long-bristled +  and acute +
1-2-locular or +  and incompletely completely multilocular +
marcescent +
persistent +
distinct +
obovate +
2 times number of sepals +
1.2 cm12 mm <br />0.012 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Flowering late spring +  and fruiting mid summer. +
3-6-carpellate +
Proc. Biol. Soc. Wash. +
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 +
1 cm10 mm <br />0.01 m <br /> (?) +
Arctomecon humilis +
Arctomecon +
species +
evergreen +  and perennial +