Chaenactis carphoclinia

A. Gray in W. H. Emory
in W. H. Emory, Rep. U.S. Mex. Bound. 2(1): 94. 1859.
Common names: Pebble or straw-bed pincushion
Illustrated
Treatment appears in FNA Volume 21. Treatment on page 402. Mentioned on page 5, 400.

Plants (5–)10–30(–60) cm. Leaves basal (often withering) and, usually, cauline, 1–6(–10) cm; largest blades ± 3-dimensional, not to somewhat succulent; primary lobes mostly 2–7(–10) pairs, ultimate lobes ± crowded to remote, antrorse, linear, terete. Peduncles 2–6 cm. Involucres obconic to ± cylindric or hemispheric, mostly 5–10 mm diam. Phyllaries: longest 7–10 mm, ± granular-glandular and villous; apices (all or inner) erect to incurved, usually reddish, acuminate, aristate, terete. Receptacles: paleae (0–)3–10+ (persistent, ± phyllary-like, apices visible among mature floret buds). Corollas 4–6 mm. Cypselae ± terete, 3–4.5 mm; pappi usually of 4(–5) scales, longest 3–5 mm.

Distribution

V21-1012-distribution-map.gif

Ariz., Calif., N.Mex., Nev., Utah, nw Mexico.

Discussion

Varieties 2 (2 in the flora).

Though occasionally suspected (P. Stockwell 1940), there are no confirmed natural or artificial hybrids between Chaenactis carphoclinia and any other member of the genus. The presence of paleae on the receptacle of C. carphoclinia is unique in Chaenactis.

Selected References

None.

Key

1 Leaves basal and cauline, longest 1–6(–7) cm; petioles scarcely dilated proximally, ± herbaceous Chaenactis carphoclinia var. carphoclinia
1 Leaves ± basal, longest 7–10 cm; petioles dilated proximally, ± indurate Chaenactis carphoclinia var. peirsonii
... more about "Chaenactis carphoclinia"
James D. Morefield +
A. Gray in W. H. Emory +
Undefined sect. Acarphaea +
Pebble or straw-bed pincushion +
Ariz. +, Calif. +, N.Mex. +, Nev. +, Utah +  and nw Mexico. +
in W. H. Emory, Rep. U.S. Mex. Bound. +
Illustrated +
Undefined (tribe Undefined) subtribe Bahiinae +  and Undefined (tribe Undefined) subtribe Palafoxiinae +
Chaenactis carphoclinia +
Chaenactis sect. Acarphaea +
species +