Thymophylla pentachaeta var. puberula

(Rydberg) Strother

Sida 11: 377. 1986.

Basionym: Thymophylla puberula Rydberg in N. L. Britton et al., N. Amer. Fl. 34: 177. 1915
Synonyms: Dyssodia puberula (Rydberg) Standley Dyssodia pentachaeta var. puberula (Rydberg) Strother
Treatment appears in FNA Volume 21. Treatment on page 242.

Leaves 10–28 mm overall, lobes 3–7 (–10), subequal. Peduncles 40–100 mm. Calyculi 0, or of 1–3 bractlets. Involucres campanulate to hemispheric, 4.5–5.5 × 4–5 mm. Phyllaries 12–17, margins of outer distinct ca. 1/3 their lengths, abaxial faces densely puberulent. Disc-florets 50–70. Pappi of 5 erose scales alternating with 5, 1–3-aristate scales.


Phenology: Flowering early spring and late summer, following rains.
Habitat: Calcareous bluffs and slopes, scrublands, deserts
Elevation: 300–2200 m

Discussion

Selected References

None.

Lower Taxa

None.
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 +
(Rydberg) Strother +
decurrent +
Thymophylla puberula +
compound +  and simple +
0.6 cm6 mm <br />0.006 m <br /> (2.8 cm28 mm <br />0.028 m <br />) +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
yellow +  and orange-yellow +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
strigillose +  and glabrous +
cylindro-clavate +, obconic +  and obpyramidal +
fertile +  and bisexual +
fertile +  and bisexual +
Tex. +  and Mexico +
300–2200 m +
tomentose +, puberulent +, lanate +, floccose +, canescent +, arachnose +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Calcareous bluffs and slopes, scrublands, deserts +
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 />) +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
campanulate;hemispheric +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
sessile +  and petiolate +
1 cm10 mm <br />0.01 m <br /> (?) +  and 2.8 cm28 mm <br />0.028 m <br /> (?) +
linear +  and filiform +
subequal +
dentate to pinnatifid or palmatifid +  and entire +
1/5;lengths +
2-carpellate +
persistent +
of 10(-20) distinct scales +  and coroniform +
glabrous +  and puberulent +
4 cm40 mm <br />0.04 m <br /> (10 cm100 mm <br />0.1 m <br />) +
Flowering early spring and late summer, following rains. +
12 +  and 17 +
bearing subulate enations +, hairy +  and bristly +
pitted +  and smooth +
alternating +
distinct +
1-3-aristate +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
exalbuminous +
Illustrated +
spreading +  and erect +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Dyssodia puberula +  and Dyssodia pentachaeta var. puberula +
Thymophylla pentachaeta var. puberula +
Thymophylla pentachaeta +
variety +
cylindric +
toothed +  and entire +
15 cm150 mm <br />0.15 m <br /> (25 cm250 mm <br />0.25 m <br />) +
less grayish +  and green +
glabrous +, glabrescent +, usually puberulent +  and canescent +
0 cm0 mm <br />0 m <br /> (15 cm150 mm <br />0.15 m <br />) +
15 cm150 mm <br />0.15 m <br /> (25 cm250 mm <br />0.25 m <br />) +
less grayish;green +
glabrous +, glabrescent +, usually puberulent +  and canescent +