Pityopsis graminifolia var. tracyi

(Small) Semple

Phytologia 58: 430. 1985.

Endemic
Basionym: Chrysopsis tracyi Small Fl. S.E. U.S., 1182, 1339. 1903
Synonyms: Heterotheca graminifolia var. tracyi (Small) R. W. Long Pityopsis tracyi (Small) Small
Treatment appears in FNA Volume 20. Treatment on page 228. Mentioned on page 226.

Cauline leaves 20–80 × 3–7 mm, reduced distally. Involucres 12–14 mm. Phyllary faces moderately to densely sericeous. Ray-florets 13–25; laminae 9–15 mm. Disc-florets 30–37; corollas 3.6–6 mm, lobes 0.4–0.8 mm, throats and lobes sometimes sparsely to moderately long-pilose. 2n = 54.


Phenology: Flowering late fall–winter.
Habitat: Sandy and rocky soils, margins of pine woods and shrublands
Elevation: 0–30 m

Discussion

Variety tracyi is possibly adventive in northern Alabama. Spring-blooming plants of var. graminifolia can look similar because of aberrant development of only a few, and therefore larger, heads. This is the only variety with sometimes moderately long-pilose disc corolla throats and lobes throughout.

Selected References

None.

Lower Taxa

None.

"[" 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 +
paniculiform +  and corymbiform to sometimes +
indeterminate +  and determinate +
John C. Semple +
(Small) Semple +
decurrent +
Chrysopsis tracyi +
3-11-parallel-nerved +
25 cm250 mm <br />0.25 m <br /> (40 cm400 mm <br />0.4 m <br />) +
8 cm80 mm <br />0.08 m <br /> (25 cm250 mm <br />0.25 m <br />) +
linear;lanceolate +
0.2 cm2 mm <br />0.002 m <br /> (2 cm20 mm <br />0.02 m <br />) +
rugulose +  and muricate +
light tan +  and light rust +
0.5 cm5 mm <br />0.005 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
2 cm20 mm <br />0.02 m <br /> (8 cm80 mm <br />0.08 m <br />) +
20 (?) +  and 60 (?) +
lanceolate +  and ovate +
0.3 cm3 mm <br />0.003 m <br /> (?) +  and 0.7 cm7 mm <br />0.007 m <br /> (?) +
not 2-lipped +  and actinomorphic +
ampliate +
0.36 cm3.6 mm <br />0.0036 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
fertile +  and bisexual +
fertile +  and bisexual +
0–30 m +
stipitate-glandular +, pilose +  and silvery-sericeous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Sandy and rocky soils, margins of pine woods and shrublands +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
turbino-campanulate +
1.2 cm12 mm <br />0.012 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
0.9 cm9 mm <br />0.009 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
cauline +  and basal +
long-pilose +
erect;spreading +
long-pilose +
deltate +
fimbriate +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
2-carpellate +
persistent +
1 cm10 mm <br />0.01 m <br /> (10 cm100 mm <br />0.1 m <br />) +
Flowering late fall–winter. +
lanceolate +
bearing subulate enations +, hairy +  and bristly +
3 cm30 mm <br />0.03 m <br /> (20 cm200 mm <br />0.2 m <br />) +
erose-fimbrillate +, linear +  and linear-triangular +
exalbuminous +
green +  and brown +
silvery-sericeous +
1 +  and 5 +
appendaged +  and truncate +
papillate +  and smooth +
Heterotheca graminifolia var. tracyi +  and Pityopsis tracyi +
Pityopsis graminifolia var. tracyi +
Pityopsis graminifolia +
variety +
long-pilose +
20 cm200 mm <br />0.2 m <br /> (80 cm800 mm <br />0.8 m <br />) +
tree +, shrub +  and subshrub +