Chrysopsis linearifolia subsp. dressii

Semple

Brittonia 30: 494. 1978.

Common names: Dress’s goldenaster
Endemic
Treatment appears in FNA Volume 20. Treatment on page 219. Mentioned on page 220.

Stems green to dark purple, 30–80 cm. Leaves less numerous (to 100 on tall plants), linear to linear-lanceolate or elliptic, sometimes very undulate, strongly twisted. Heads 4–30 (–50) in open corymbiform arrays.


Phenology: Flowering Sep–Nov.
Habitat: Open sandy areas in oak pine woods, fields, roadsides
Elevation: 10–50 m

Discussion

Subspecies dressii is known from the central half and west of the peninsula. The report of the subspecies from southern Bay County (J. C. Semple 1981) was based on a few plants that were subsequently determined to be a hybrid swarm involving subsp. linearifolia and another species. This subspecies might deserve species status and more investigation is warranted. Plants of subsp. dressii could be confused with sparsely hairy forms of Chrysopsis subulata, which differ in having twisted, subulate phyllaries.

Selected References

None.

Lower Taxa

None.

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

not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
corymbiform +  and open +
indeterminate +  and determinate +
John C. Semple +
Semple +
1.5 cm15 mm <br />0.015 m <br /> (7 cm70 mm <br />0.07 m <br />) +
oblanceolate +  and linear +
0.1 cm1 mm <br />0.001 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
stipitate-glandular +
tapering +  and rounded +
compound +  and simple +
rugulose +  and muricate +
whitish +  and stramineous +
? (?) +  and ? (?) +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
undulate +, linear-lanceolate +  and oblong +
Dress’s goldenaster +
not 2-lipped +  and actinomorphic +
ampliate +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
2-6-ridged +
fertile +  and bisexual +
fertile +  and bisexual +
10–50 m +
gland-dotted +
strigose +, glabrous +  and woolly +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Open sandy areas in oak pine woods, fields, roadsides +
fibrous-rooted +  and taprooted +
flagelliform +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
campanulate +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.9 cm9 mm <br />0.009 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
cauline +  and basal +
undulate;linear;linear-lanceolate or elliptic +
triangular +
undulate +
2-carpellate +
persistent +
2 cm20 mm <br />0.02 m <br /> (8 cm80 mm <br />0.08 m <br />) +
Flowering Sep–Nov. +
foliaceous +  and 1-nerved +
linear-lanceolate +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
bearing subulate enations +, hairy +  and bristly +
linear +  and narrowly triangular +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
exalbuminous +
green +  and dark purple +
decumbent +  and procumbent +
30 cm300 mm <br />0.3 m <br /> (80 cm800 mm <br />0.8 m <br />) +
appendaged +  and truncate +
papillate +  and smooth +
Diplopappus +  and Heterotheca sect. Chrysopsis +
Chrysopsis linearifolia subsp. dressii +
Chrysopsis linearifolia +
subspecies +
100 cm1,000 mm <br />1 m <br /> (200 cm2,000 mm <br />2 m <br />) +
30 cm300 mm <br />0.3 m <br /> (100 cm1,000 mm <br />1 m <br />) +
9 +, 4 +  and 5 +