Acourtia runcinata

(D. Don) B. L. Turner
Phytologia 38: 460. 1978.
Common names: Featherleaf desertpeony desert paeonia
Illustrated
Basionyms: Clarionia runcinata Lagasca ex D. Don Trans. Linn. Soc. London 16: 207. 1830
Treatment appears in FNA Volume 19. Treatment on page 73. Mentioned on page 74.

Plants 5–35 cm. Leaves basal; petioles 0.5–9 cm; blades oblong-oblanceolate, 2.5–23 cm, bases cuneate, margins pinnately lobed (lobes ovate), spinulose-dentate, apices acute, faces hirtellous and/or finely stipitate-glandular. Heads borne singly or 2–3 together (on scapiform peduncles). Involucres turbinate, 14–17 mm. Phyllaries in 2–4 series, lanceolate to subulate (3–15 mm), margins glandular-hairy, apices acuminate, abaxial faces glandular. Receptacles reticulate, hispidulous. Florets 25–53; corollas pink or lavender-pink, 12–22 mm. Cypselae fusiform to linear-fusiform, 4–8 mm, stipitate-glandular and/or hispidulous; pappi tan or white, 1–17 mm. 2n = ca. 54.


Phenology: Flowering year round (mostly Mar–Aug).
Habitat: Juniper forests, oak woodlands, dry matorral, desert scrub on calcareous, sandy clay, and gypsiferous soils
Elevation: 0–1600 m

Distribution

V19-6-distribution-map.gif

Tex., Mexico (Chihuahua, Coahuila, Hidalgo, Nuevo León, San Luis Potosí, Tamaulipas).

Discussion

Acourtia runcinata is the most widespread species of the genus, within which it is unique in possessing fasciculate, tuberous-fusiform roots. In the flora, it grows in central and southwestern Texas.

Selected References

None.

Lower Taxa

None.

... more about "Acourtia runcinata"
Beryl B. Simpson +
(D. Don) B. L. Turner +
Clarionia runcinata +
Featherleaf desertpeony +  and desert paeonia +
Tex. +, Mexico (Chihuahua +, Coahuila +, Hidalgo +, Nuevo León +, San Luis Potosí +  and Tamaulipas). +
0–1600 m +
Juniper forests, oak woodlands, dry matorral, desert scrub on calcareous, sandy clay, and gypsiferous soils +
Flowering year round (mostly Mar–Aug). +
Illustrated +
Compositae +
Acourtia runcinata +
Acourtia +
species +