Malacothrix foliosa subsp. crispifolia

W. S. Davis

Madroño 44: 234. 1997.

Common names: Petite desertdandelion
Treatment appears in FNA Volume 19. Treatment on page 315.

Stems 1–6, ascending, branched proximally and distally. Distal cauline leaves oblanceolate to obovate, pinnately lobed (lobes 2–5 pairs, narrow, ultimate margins crisped, apices acute). Calyculi 0 (or bractlets intergrading with phyllaries). Involucres 7–9.2 × 3.4–5.4 mm. Phyllaries 22–40 in 4–5 series. Corollas medium yellow, 6–10 mm; outer ligules exserted 2.5–4 mm. Cypselae ± prismatic (5-angled), 1.3–1.6 mm, 5 ribs more prominent than others. 2n = 14.


Phenology: Flowering Mar–Jul.
Habitat: Open sandy areas, dunes, between shrubs in chaparral
Elevation: 0–100 m

Discussion

Of conservation concern.

Subspecies crispifolia is known only from Anacapa Island.

Selected References

None.

Lower Taxa

None.

"fine" is not a number."]" is not declared as a valid unit of measurement for this property.

obtuse;acute or acuminate +
scarious +
ovate +  and lanceolate +
corymbiform +  and paniculiform +
indeterminate +  and determinate +
W. S. Davis +
W. S. Davis +
decurrent +
compound +  and simple +
lanceolate;obovate oblanceolate or spatulate +
tuberculate +, rugose +, muricate +  and smooth +
ovate;lanceolate or linear +
subequal +  and unequal +
filiform +
Petite desertdandelion +
zygomorphic +, actinomorphic +  and (3-)5-merous +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
crenate +
stramineous +  and brown or purplish brown +
prismatic +
lobed +, oblanceolate +  and obovate +
0–100 m +
winged +  and beaked +
dispersed +
Open sandy areas, dunes, between shrubs in chaparral +
indeterminate +
each +  and sessile +
0.7 cm7 mm <br />0.007 m <br /> (0.92 cm9.2 mm <br />0.0092 m <br />) +
campanulate +
0.34 cm3.4 mm <br />0.0034 m <br /> (0.54 cm5.4 mm <br />0.0054 m <br />) +
cauline +  and basal +
divided +, lobed +  and dentate +
0.05mm +  and 0.2mm +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
2-carpellate +
persistent +
Flowering Mar–Jul. +
connate +  and distinct +
22 +  and 40 +
subequal +  and unequal +
flat;more or less convex +
more prominent +
crenate +
exalbuminous +
arachnose +  and glabrous +
1 +  and 6 +
appendaged +  and truncate +
papillate +
Undefined tribe Lactuceae +
Malacothrix foliosa subsp. crispifolia +
Malacothrix foliosa +
subspecies +
70 cm700 mm <br />0.7 m <br /> (200 cm2,000 mm <br />2 m <br />) +
4 cm40 mm <br />0.04 m <br /> (45 cm450 mm <br />0.45 m <br />) +
shrub +  and subshrub +