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.
Revision as of 19:20, 29 July 2020 by imported>Volume Importer
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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 +