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.
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, lance-ovate 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.

Facts about "Dicranocarpus"
AuthorJustin W. Allison +
AuthorityA. Gray +
Common namePitchfork +
Distributionsw United States + and n Mexico. +
EtymologyGreek di -, two, kranos, skull or helmet, and karpos, fruit + and probably alluding to the “two-horned” cypselae +
Illustration copyrightFlora of North America Association +
IllustratorLinny Heagy +
Publication titleMem. Amer. Acad. Arts, n. s. +
Publication year1854 +
ReferenceNone +
Source xmlhttps://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse grained fna xml/V19-20-21/V21 533.xml +
SynonymsUndefined (tribe Undefined) subtribe Coreopsideae + and Undefined (tribe Undefined) subtribe Petrobiinae +
Taxon familyAsteraceae +
Taxon nameDicranocarpus +
Taxon parentAsteraceae (tribe Heliantheae) subtribe Coreopsidinae +
Taxon rankgenus +
VolumeVolume 21 +