Acourtia thurberi

(A. Gray) Reveal & R. M. King

Phytologia27: 231. 1973

Common names: Thurber’s desertpeony
Basionyms: Perezia thurberi
Found in FNA Volume 19. Treatment on page 74. Mentioned on page 73.
Plants 40–150 cm (stems sulcate to striate distally, densely glandular). Leaves cauline and/or basal; sessile; blades ovate to ovate-elliptic, 1.5 (cauline)–18 (basal) cm, bases shortly sagittate or clasping, margins acerose-denticulate, faces densely glandular-puberulent. Heads in subcongested corymbiform arrays. Involucres obconic to campanulate, 7–9 mm. Phyllaries in 2–3 series, oblong-oblanceolate, apices acuminate, abaxial faces densely glandular-hairy. Receptacles alveolate, glandular. Florets 3–6; corollas lavender-pink (purple), 7–12 mm. Cypselae subcylindric to subfusiform, 3–7 mm, glandular; pappi bright white, 8–9 mm (rigid). 2n = 54.

Phenology: Flowering Oct–Nov.
Habitat: Gravel and caliche soils in warm Sonoran desert scrub
Elevation: 100–200 m

Distribution

Ariz., N.Mex., Mexico (Chihuahua, Durango, Sonora).

Discussion

References

None.

Facts about "Acourtia thurberi"
AuthorBeryl B. Simpson +
BasionymPerezia thurberi +
Common nameThurber’s desertpeony +
Elevation100–200 m +
HabitatGravel and caliche soils in warm Sonoran desert scrub +
IllustratorYevonn Wilson-Ramsey +
PhenologyFlowering Oct–Nov. +
ReferenceNone +
Taxon nameAcourtia thurberi +
Taxon parentAcourtia +
Taxon rankspecies +
VolumeVolume 19 +