Romneya coulteri

Harvey

London J. Bot. 4: 75, plate 3. 1845.

EndemicIllustrated
Treatment appears in FNA Volume 3.

Plants 10-25 dm. Leaves 5-20 cm. Flowers: calyx distinctly beaked at bud apex, glabrous; petals 6-10 cm. Capsules 3-4 cm. Seeds dark-brown, papillose. 2n = 38.


Phenology: Flowering spring–summer (Apr–Aug).
Habitat: Dry washes, canyons
Elevation: less than 1200 m

Discussion

Romneya coulteri shares with Hibiscus lasiocarpos the distinction of having the largest flowers of any plant native to California.

Selected References

None.

Lower Taxa

None.
... more about "Romneya coulteri"
Harvey +
palmate +  and subpalmate +
3 cm30 mm <br />0.03 m <br /> (4 cm40 mm <br />0.04 m <br />) +
less than 1200 m +
sessile +, pedicellate +  and symmetric +
oblong;ovoid +
Dry washes, canyons +
paniculate +  and racemose +
terminal +  and axillary +
cauline +  and basal +
5 cm50 mm <br />0.05 m <br /> (20 cm200 mm <br />0.2 m <br />) +
1-locular or +  and incompletely completely multilocular +
oblong +  and ovoid +
distinct +
crinkled +  and obovate +
2 times number of sepals +
6 cm60 mm <br />0.06 m <br /> (10 cm100 mm <br />0.1 m <br />) +
Flowering spring–summer (Apr–Aug). +
7-12-carpellate +
ovate +  and lanceolate +
London J. Bot. +
carunculate +  and arillate +
dark-brown +
papillose +
0.13 cm1.3 mm <br />0.0013 m <br /> (?) +  and 0.15 cm1.5 mm <br />0.0015 m <br /> (?) +
distinct +
obovate +
Endemic +  and Illustrated +
leafy +  and branching +
decumbent +, spreading +  and erect +
glabrate +  and pilose +
radiate-ascending +
flattened +
Romneya coulteri +
species +
caulescent +  and scapose +
perennial +, biennial +  and annual +