Chaptalia texana

Greene

Leafl. Bot. Observ. Crit. 1: 191. 1906.

Common names: Silverpuff
Synonyms: Chaptalia nutans var. texana (Greene) Burkart
Treatment appears in FNA Volume 19. Treatment on page 79.

Leaves petiolate (petioles 1/8–1/3 lengths of blades); blades obovate to ovate or elliptic or sublyrate, 3–21 cm, margins lobed to denticulate, abaxial faces thinly gray-tomentose, adaxial faces green-glabrate. Heads nodding in bud and fruit, erect in flowering. Peduncles ebracteate or bracts 1–2, 13–34 cm at flowering, 16–46 cm in fruit, not dilated distally. Florets: outer pistillate, corollas evenly cream colored, turning crimson, laminae 0.2–0.8 mm wide; inner florets bisexual, fertile. Cypselae 11.5–13 mm, beaks filiform, lengths 1–1.6 times bodies, faces sparsely to moderately papillate (bodies and beaks). 2n = 24.


Phenology: Flowering Mar–Jun.
Habitat: Slopes in thin, rocky (limestone) soils, usually in woods with abundant oaks
Elevation: 200–1500 m

Distribution

V19-21-distribution-map.gif

N.Mex., Tex., Mexico (Chihuahua), Mexico (Coahuila), Mexico (Nuevo León), Mexico (San Luis Potosí), Mexico (Tamaulipas), Mexico (and others)

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Chaptalia texana"
scarious +
racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
Guy L. Nesom +
Greene +
cuneate +
1-1.6 times bodies +
filiform +
compound +  and simple +
obovate;ovate or elliptic or sublyrate +
3 cm30 mm <br />0.03 m <br /> (21 cm210 mm <br />0.21 m <br />) +
ribbed;smooth +
dilated +
stramineous +  and pinkish +
Silverpuff +
actinomorphic +  and zygomorphic +
cream colored +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
tapered +, flattened +  and fusiform +
N.Mex. +, Tex. +, Mexico (Chihuahua) +, Mexico (Coahuila) +, Mexico (Nuevo León) +, Mexico (San Luis Potosí) +, Mexico (Tamaulipas) +  and Mexico (and others) +
200–1500 m +
hairy +  and glabrous +
papillate +
pistillate +, staminate +  and neuter +
fertile +  and bisexual +
winged +  and beaked +
dispersed +
Slopes in thin, rocky (limestone) soils, usually in woods with abundant oaks +
disciform +  and quasi-radiate +
indeterminate +
erect +  and nodding +
heterogamous +  and homogamous +
each +  and sessile +
fertile +  and bisexual +
fertile +  and bisexual +
0.7 cm7 mm <br />0.007 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
cylindric;campanulate +
0.9 cm9 mm <br />0.009 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
lobed +  and denticulate +
2-carpellate +
persistent +
Flowering Mar–Jun. +
connate +  and distinct +
Leafl. Bot. Observ. Crit. +
flat;convex +
4 +  and 12 +
barbellulate +  and smooth +
plumose +, subulate +  and setiform +
exalbuminous +
prostrate +  and ascending +
appendaged +  and truncate +
hairy +  and glabrous +
papillate +
Chaptalia nutans var. texana +
Chaptalia texana +
Chaptalia +
species +
40 cm400 mm <br />0.4 m <br /> (100 cm1,000 mm <br />1 m <br />) +
3 cm30 mm <br />0.03 m <br /> (40 cm400 mm <br />0.4 m <br />) +
shrub +  and subshrub +