Dicranocarpus

A. Gray

Mem. Amer. Acad. Arts, n. s. 5: 322. 1854.

Common names: Pitchfork
Etymology: Greek di -, two, kranos, skull or helmet, and karpos, fruit probably alluding to the “two-horned” cypselae
Treatment appears in FNA Volume 21. Treatment on page 219. Mentioned on page 184.
 TaxonIllustrator 
FNA21 P34 Dicranocarpus parvifl.jpegDicranocarpus parviflorus
Varilla texana
Pectis prostrata
Linny Heagy
Yevonn Wilson-Ramsey
John Myers

Annuals, 10–70 cm (± succulent; taprooted). Stems 1, erect, branched dichotomously, divaricate (drying brittle). Leaves mostly cauline; opposite; obscurely petiolate; blades 1 (–2) -pedately or pinnately lobed (lobes filiform), ultimate margins entire, faces glabrous. Heads radiate, borne singly or (2–4) in cymiform arrays. Calyculi of (0–) 1–3+ erect, linear to subulate, herbaceous bractlets. Involucres cylindric to obconic, 1.5–3 mm diam. (larger in fruit). Phyllaries persistent, 3–6 in 1 (–2) series, lanceovate to lanceolate, scarious, brown-nerved. Receptacles slightly convex, paleate; paleae linear to subulate, scarious. Ray-florets 3–6, pistillate, fertile; corollas yellow. Disc-florets 3–4+, functionally staminate; corollas yellow, tubes shorter than throats, lobes 5, triangular. Cypselae obcompressed, oblong to linear, ± ribbed, smooth or tuberculate, glabrous or densely papillate; pappi persistent, of 2 spreading to recurved, smooth or proximally papillate awns. x = 10.

Distribution

sw United States, n Mexico

Discussion

Species 1.

Selected References

None.

"broader" is not a number.

... more about "Dicranocarpus"
not tailed +, rounded +  and obtuse +
dark +  and pale +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
Justin W. Allison +
A. Gray +
smooth +  and ciliate or barbed +
spreading +  and recurved +
papillate +  and smooth +
decurrent +
compound +  and simple +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
linear;subulate +
barbellulate +  and barbellate +
Pitchfork +
papillate +, tuberculate +  and smooth +
oblong +  and linear +
fertile +  and bisexual +
fertile +  and bisexual +
sw United States +  and n Mexico +
Greek di -, two, kranos, skull or helmet, and karpos, fruit +  and probably alluding to the “two-horned” cypselae +
linear-fusiform;4-angled;ovate;orbiculate;oblong;linear;cuneate +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
discoid +  and radiate +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
cylindric;obconic +
triangular +
dentate to pinnatifid or palmatifid +  and entire +
2-carpellate +
linear;subulate +
persistent +
of 1-2 , smooth to ciliate or barbed awns or scales +  and coroniform +
Mem. Amer. Acad. Arts, n. s. +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Coreopsideae +  and Undefined (tribe Undefined) subtribe Petrobiinae +
Dicranocarpus +
Asteraceae (tribe Heliantheae) subtribe Coreopsidinae +
toothed +  and entire +
10 cm100 mm <br />0.1 m <br /> (70 cm700 mm <br />0.7 m <br />) +
shrub +  and subshrub +