Chaenactis xantiana

A. Gray
Proc. Amer. Acad. Arts 6: 545. 1865.
Common names: Fleshy pincushion fleshcolor pincushion Xantus pincushion
IllustratedEndemic
Treatment appears in FNA Volume 21. Treatment on page 410. Mentioned on page 408, 409, 412.

Plants 10–40 cm; proximal indument grayish, sparsely arachnoid, early glabrescent (usually glabrous by flowering). Stems mostly 1–5(–12); branches proximal and/or distal. Leaves basal (withering) and cauline, (1–)2–6 cm; largest blades linear or ± elliptic, ± plane or terete, ± succulent, 0–1-pinnately lobed; lobes 1–2(–5) pairs, remote, ± terete. Heads mostly 1–5(–7) per stem. Peduncles 1–5(–8) cm, glabrous (and ± expanded) distally. Involucres broadly obconic to campanulate. Phyllaries: longest 10–18 mm (surpassed by florets); outer distally tomentulose-puberulent in fruit (proximally glabrous, not stipitate-glandular), apices ± squarrose, blunt, pliant. Florets: corollas (diurnal) dirty-whitish to pinkish, 6–10 mm (± equal to cypsela lengths, anthers exserted); peripheral corollas erect to ascending, actinomorphic, scarcely enlarged. Cypselae 5–9 mm; pappi of 8 scales in 2, abruptly unequal series, longest scales 5–9 mm. 2n = 14.


Phenology: Flowering late Mar–Jul.
Habitat: Open, deep, loose sandy (rarely gravelly) soils, arid and semiarid shrublands, chaparral
Elevation: (100–)300–2500 m

Distribution

V21-1029-distribution-map.gif

Ariz., Calif., Nev., Oreg.

Discussion

Selected References

None.

Lower Taxa

None.

... more about "Chaenactis xantiana"
James D. Morefield +
A. Gray +
Fleshy pincushion +, fleshcolor pincushion +  and Xantus pincushion +
Ariz. +, Calif. +, Nev. +  and Oreg. +
(100–)300–2500 m +
Open, deep, loose sandy (rarely gravelly) soils, arid and semiarid shrublands, chaparral +
Flowering late Mar–Jul. +
Proc. Amer. Acad. Arts +
Illustrated +  and Endemic +
Undefined (tribe Undefined) subtribe Bahiinae +  and Undefined (tribe Undefined) subtribe Palafoxiinae +
Chaenactis xantiana +
Chaenactis sect. Chaenactis +
species +