Hesperevax sparsiflora var. sparsiflora

IllustratedEndemic
Treatment appears in FNA Volume 19. Treatment on page 468.
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Plants greenish to grayish, (2–) 8–17 cm. Leaves mostly cauline, largest (10–) 13–32 × 4–8 (–10) mm; blades broadly oblanceolate to obovate, arachnoid-sericeous. Heads: longest 3.6–4.5 mm. Pistillate paleae 3–4.5 mm. Cypselae mostly 1.3–1.7 mm.


Phenology: Flowering and fruiting mostly late Mar–early Jun.
Habitat: Open soils, often shallow and rocky, usually over serpentine
Elevation: 10–900 m

Discussion

Variety sparsiflora is known from the Coast Ranges and has outliers in western San Diego County and on the nearer Channel Islands. In the southern half of its range, it grows mostly in coastal marine environments, where it remains distinct from the north-coastal var. brevifolia. Consistently stemless plants from Santa Rosa Island may warrant taxonomic separation.

Selected References

None.

Lower Taxa

None.

"longest" is not a number."-1.5timesbladelengths" is not declared as a valid unit of measurement for this property.

truncate-penicillate;truncate +
scarious +
mostly ovate +  and lanceovate or linear +
spiciform +  and cymiform +
indeterminate +  and determinate +
James D. Morefield +
(A. Gray) Greene +
decurrent +
cartilaginous +  and more or less indurate +
Evax caulescens var. sparsiflora +
compound +  and simple +
arachnoid-sericeous +
broadly oblanceolate;obovate +
5-ribbed +, 3-ribbed +  and 2-ribbed +
muriculate +, papillate +  and smooth +
obovate;obovate;oblanceolate not gibbous flat +
not whorled +  and approximate +
ascending +  and erect +
actinomorphic +
red-tipped +, purplish +, yellow +  and whitish +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
black-banded +  and brown +
not gibbous +, obovoid +  and obcompressed +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (3.2 cm32 mm <br />0.032 m <br />) +
3mm +  and 8mm +
10–900 m +
dull +  and more or less shiny +
winged +  and beaked +
dispersed +
Open soils, often shallow and rocky, usually over serpentine +
indeterminate +
1.8-2.5 times diams +
homogamous +  and heterogamous +
cylindric +
0.36 cm3.6 mm <br />0.0036 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
each +  and sessile +
1 cm10 mm <br />0.01 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
1.3 cm13 mm <br />0.013 m <br /> (3.2 cm32 mm <br />0.032 m <br />) +
largest +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
rarely lanceovate +  and lanceolate +
2-carpellate +
persistent +
0.3-0.4 times head heights +
spreading +, erect +  and ascending or spreading +
oblanceolate +
0.3 cm3 mm <br />0.003 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
persistent +
Flowering and fruiting mostly late Mar–early Jun. +
subequal +  and unequal +
Fl. Francisc., +
paleate +  and epaleate +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
cylindric;conic +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
exalbuminous +
Illustrated +  and Endemic +
ascending +  and erect +
1 +  and 10 +
appendaged +  and truncate +
papillate +
Evax sparsiflora +
Hesperevax sparsiflora var. sparsiflora +
Hesperevax sparsiflora +
variety +
10 cm100 mm <br />0.1 m <br /> (20 cm200 mm <br />0.2 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (10 cm100 mm <br />0.1 m <br />) +
2 cm20 mm <br />0.02 m <br /> (8 cm80 mm <br />0.08 m <br />) +