Acourtia runcinata

(D. Don) B. L. Turner

Phytologia 38: 460. 1978.

Common names: Featherleaf desertpeony desert paeonia
Illustrated
Basionym: 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), Mexico (Coahuila), Mexico (Hidalgo), Mexico (Nuevo León), Mexico (San Luis Potosí), Mexico (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"
scarious +
corymbiform +  and paniculiform +
indeterminate +  and determinate +
Beryl B. Simpson +
(D. Don) B. L. Turner +
rounded +  and elongate +
cuneate +
Clarionia runcinata +
compound +  and simple +
oblong-oblanceolate +
2.5 cm25 mm <br />0.025 m <br /> (23 cm230 mm <br />0.23 m <br />) +
ribbed;smooth +
less barbellate +  and nearly smooth +
white +  and tan +
Featherleaf desertpeony +  and desert paeonia +
lavender-pink +  and pink +
1.2 cm12 mm <br />0.012 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
ribbed +  and not beaked +
hispidulous +  and stipitate-glandular +
fusiform +  and linear-fusiform +
Tex. +, Mexico (Chihuahua) +, Mexico (Coahuila) +, Mexico (Hidalgo) +, Mexico (Nuevo León) +, Mexico (San Luis Potosí) +  and Mexico (Tamaulipas) +
0–1600 m +
stipitate-glandular +  and hirtellous +
pistillate +, staminate +  and neuter +
fertile +  and bisexual +
winged +  and beaked +
dispersed +
Juniper forests, oak woodlands, dry matorral, desert scrub on calcareous, sandy clay, and gypsiferous soils +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
1.4 cm14 mm <br />0.014 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
sessile +  and petiolate +
glandular-hairy +
2-carpellate +
white +  and tan +
persistent +
0.1 cm1 mm <br />0.001 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (9 cm90 mm <br />0.09 m <br />) +
Flowering year round (mostly Mar–Aug). +
connate +  and distinct +
reticulate +, alveolate +  and foveolate +
convex;flat;convex;flat;concave +
barbellulate +  and smooth +
plumose +, subulate +  and setiform +
exalbuminous +
Illustrated +
prostrate +  and ascending +
appendaged +  and truncate +
hairy +  and glabrous +
papillate +
Compositae +
Acourtia runcinata +
Acourtia +
species +
50 cm500 mm <br />0.5 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
5 cm50 mm <br />0.05 m <br /> (50 cm500 mm <br />0.5 m <br />) +