Acourtia runcinata

(D. Don) B. L. Turner

Phytologia38: 460. 1978

Common names: Featherleaf desertpeony desert paeonia
Basionyms: Clarionia runcinata
Found in FNA Volume 19. Treatment on page 73. Mentioned on page 74.
FNA19 P01 Hecastocleis shockley.jpeg
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

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.

References

None.

Facts about "Acourtia runcinata"
AuthorBeryl B. Simpson +
BasionymClarionia runcinata +
Common nameFeatherleaf desertpeony + and desert paeonia +
Elevation0–1600 m +
HabitatJuniper forests, oak woodlands, dry matorral, desert scrub on calcareous, sandy clay, and gypsiferous soils +
IllustratorYevonn Wilson-Ramsey +
PhenologyFlowering year round (mostly Mar–Aug). +
ReferenceNone +
Taxon nameAcourtia runcinata +
Taxon parentAcourtia +
Taxon rankspecies +
VolumeVolume 19 +