Jepsonia malvifolia

(Greene) Small

Bull. Torrey Bot. Club 23: 19. 1896 (as malvaefolia) ,.

Common names: Island jepsonia
Conservation concern
Basionym: Saxifraga malvifolia Greene Bull. Torrey Bot. Club 9: 121. 1882 (as malvaefolia)
Treatment appears in FNA Volume 8. Treatment on page 119.

Caudices branched, ovoid or flat. Leaves 2–3. Inflorescences diffuse or dense, (3–) 4–17 (–25) -flowered; bracts scalelike; peduncle greenish or olive, drying greenish or brown, branched distally, 6–23 cm. Flowers: hypanthium campanulate, 1–2 mm, ± equaling sepals; sepals yellow-green or pinkish, 1–2 mm, base flattened, glandular-viscid; petals persistent, alternate with sepals, distinct, white with red veins, 3–3.5 mm. Pollen yellowish. Capsules yellow-green with tan striations, beaks divergent. Seeds dark-brown. 2n = 14.


Phenology: Flowering Sep–Nov.
Habitat: Rocky outcrops, coastal bluffs, chaparral, oak woodlands
Elevation: 0-500 m

Distribution

V8 236-distribution-map.gif

Calif., Mexico (Baja California [Guadalupe Island])

Discussion

Of conservation concern.

Jepsonia malvifolia is uncommon and occurs on all of the Channel Islands except Anacapa, Santa Barbara, and San Miguel. Individuals of this species produce flowers that usually last longer than those of the other two members of the genus. Prior to 1992, this species was in decline on Santa Cruz and Santa Rosa islands because feral pigs ate the fleshy caudices. Populations have apparently rebounded to some extent since removal of the pigs.

Selected References

None.

Lower Taxa

None.

"full" is not a number.

... more about "Jepsonia malvifolia"
epigynous +, perigynous +  and hypogynous +
obtuse +  and rounded +
Debra K. Trock +
(Greene) Small +
glandular-viscid +
flattened +
Saxifraga malvifolia +
dentate +, serrate +  and entire +
glandular-ciliate +  and ciliate +
lobed +, ovate +  and suborbiculate or orbiculate-reniform +
scale-like +
2-beaked +  and folliclelike +
yellow-green +
3-carpellate +  and 2-carpellate +
flat +  and ovoid +
Island jepsonia +
ebracteate +, bracteate +  and 2-300(-1000+)-flowered +
Calif. +  and Mexico (Baja California [Guadalupe Island]) +
0-500 m +
heterostylous +  and bracteate +
unisexual +  and bisexual +
3 cm30 mm <br />0.03 m <br /> (28 cm280 mm <br />0.28 m <br />) +
2-3(-4)-beaked +  and folliclelike +
Rocky outcrops, coastal bluffs, chaparral, oak woodlands +
multicellular +
yellow-green +  and pinkish +
campanulate +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
(3-)4-17(-25)-flowered +
opposite +  and alternate +
crassinucellate +, unitegmic +  and bitegmic +
brown +, greenish +, drying +  and olive +
6 cm60 mm <br />0.06 m <br /> (23 cm230 mm <br />0.23 m <br />) +
epigynous +, perigynous +  and hypogynous +
persistent +
distinct +
unlobed +  and lobed +
0.3 cm3 mm <br />0.003 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
peltate +  and jointed +
stipitate-glandular +
Flowering Sep–Nov. +
unequal +
Bull. Torrey Bot. Club +
spiny +  and ribbed +
dark-brown +
straight +
muricate +, cellular-rugulose +, tuberculate +, pitted +, papillate +  and wrinkled +
ridged +, prismatic +, convex +, oblong-cylindric +, spheroid +, oblong +, ovoid +, fusiform +  and ellipsoid +
pinkish +  and yellow-green +
distinct +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Conservation concern +
unbranched +  and branched +
persistent +
horizontal +  and erect +
connate +  and distinct +
Jepsonia malvifolia +
Jepsonia +
species +
not stoloniferous +  and not rhizomatous +
annual +, biennial +  and perennial +