Thymophylla tenuiloba var. treculii

(A. Gray) Strother

Sida 11: 378. 1986.

Basionym: Hymenatherum treculii A. Gray Proc. Amer. Acad. Arts 19: 42. 1883
Synonyms: Dyssodia treculii (A. Gray) B. L. Robinson Dyssodia tenuiloba var. treculii (A. Gray) Strother
Treatment appears in FNA Volume 21. Treatment on page 244. Mentioned on page 243.

Leaves 7–15-lobed. Pappi of 5 oblanceolate, erose scales 0.8–1.1 mm alternating with 5 unequal, 1-aristate scales 2.5–3 mm. 2n = 32, 40.


Phenology: Flowering early spring and late fall.
Habitat: Mostly sandy soils
Elevation: 0–300 m

Distribution

V21-599-distribution-map.gif

Tex., Mexico (Coahuila), Mexico (Nuevo León), Mexico (Tamaulipas)

Discussion

Selected References

None.

Lower Taxa

None.
hirtellous +  and glabrous +
not tailed +, rounded +  and obtuse +
darkened +  and pale +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
John L. Strother +
(A. Gray) Strother +
decurrent +
Hymenatherum treculii +
compound +  and simple +
1.2 cm12 mm <br />0.012 m <br /> (2.8 cm28 mm <br />0.028 m <br />) +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
deltate;subulate +
barbellulate +  and barbellate +
yellow +  and yellow-orange +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
strigillose +  and glabrous +
cylindro-clavate +, obconic +  and obpyramidal +
fertile +  and bisexual +
fertile +  and bisexual +
Tex. +, Mexico (Coahuila) +, Mexico (Nuevo León) +  and Mexico (Tamaulipas) +
0–300 m +
tomentose +, puberulent +, lanate +, floccose +, canescent +, arachnose +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Mostly sandy soils +
cymiform +, corymbiform +, discoid +  and radiate +
singly +  and radiant +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.2 cm2 mm <br />0.002 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
1.5mm;3mm +
sessile +  and petiolate +
7-15-lobed +
linear +  and filiform +
dentate to pinnatifid or palmatifid +  and entire +
0 +  and 1/5 +
2-carpellate +
persistent +
of 10(-20) distinct scales +  and coroniform +
hirtellous +  and glabrous +
3 cm30 mm <br />0.03 m <br /> (8 cm80 mm <br />0.08 m <br />) +
Flowering early spring and late fall. +
12 +  and 22 +
bearing subulate enations +, hairy +  and bristly +
pitted +  and smooth +
distinct +
1-aristate +  and oblanceolate +
unequal +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
exalbuminous +
decumbent +  and erect +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Dyssodia treculii +  and Dyssodia tenuiloba var. treculii +
Thymophylla tenuiloba var. treculii +
Thymophylla tenuiloba +
variety +
cylindric +
toothed +  and entire +
hirtellous +  and glabrous +
0 cm0 mm <br />0 m <br /> (30 cm300 mm <br />0.3 m <br />) +
1 cm10 mm <br />0.01 m <br /> (5 cm50 mm <br />0.05 m <br />) +
shrub +  and subshrub +