Schkuhria pinnata

(Lamarck) Kuntze ex Thellung

Repert. Spec. Nov. Regni Veg. 11: 308. 1912.

Illustrated
Basionym: Pectis pinnata Lamarck J. Hist. Nat. 2: 150, plate 31. 1792
Synonyms: Schkuhria anthemoidea (de Candolle) J. M. Coulter Schkuhria anthemoidea var. wislizeni (A. Gray) Heiser Schkuhria anthemoidea var. wrightii (A. Gray) Heiser Schkuhria virgata Schkuhria wislizeni Schkuhria wislizeni var. frustrata S. F. Blake Schkuhria wislizeni var. wrightii (A. Gray) S. F. Blake
Treatment appears in FNA Volume 21. Treatment on page 382. Mentioned on page 383.

Plants (10–) 25–40 (–70+) cm. Stems usually strictly erect. Leaves mostly 10–25 (–40) mm; blades linear or lobed (lobes 3–7+, linear to filiform), faces scaberulous (hairs ± conic, 0.1 mm) and glanddotted. Peduncles mostly (3–) 8–25 (–30+) mm. Involucres obconic or obpyramidal, 4–6+ mm (each often subtended by 1–3, lanceolate bractlets). Phyllaries 4–6, green to purple, weakly carinate, oblanceolate to obovate, glanddotted, otherwise usually glabrous. Ray-florets usually 1 (–2), sometimes 0; corollas yellow to white, laminae 0.8–1.2+ mm. Disc-florets 2–6 (–8+); corollas yellow (sometimes with purple), 1.5–2 mm. Cypselae blackish to buff, 3–4 mm, hirsutulous to villous, especially on angles; pappi of 8 white to tawny or purplish, obovate-rounded or elliptic to lanceolate scales 1–2.5 mm (sometimes some or all ± aristate). 2n = 20, 22, 40.


Phenology: Flowering Sep–Oct.
Habitat: Roadsides, pastures, wooded slopes
Elevation: 1500–2100 m

Distribution

V21-961-distribution-map.gif

Ariz., N.Mex., Tex., Mexico, Central America, South America

Discussion

Schkuhria pinnata has been noted as persisting after plantings in Maine. Schkuhria pinnata (Lamarck) Kuntze var. wislizeni (A. Gray) B. L. Turner is a superfluous, illegitimate, name intended to refer to North American plants of S. pinnata.

Lower Taxa

None.
... more about "Schkuhria pinnata"
40 +, 22 +  and 20 +
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
corymbiform +  and paniculiform +
indeterminate +  and determinate +
John L. Strother +
(Lamarck) Kuntze ex Thellung +
decurrent +
Pectis pinnata +
compound +  and simple +
lobed;linear +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
connate +  and distinct +
yellow +  and white +
stipitate-glandular +  and hairy +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
blackish +  and buff +
hirsutulous +  and villous +
4-angled +  and obpyramidal +
fertile +  and bisexual +
fertile +  and bisexual +
Ariz. +, N.Mex. +, Tex. +, Mexico +, Central America +  and South America +
1500–2100 m +
glabrescent +  and hairy +
scabrellous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
campanulate +  and cylindric +
Roadsides, pastures, wooded slopes +
discoid +  and radiate +
singly +  and radiant +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
obpyramidal;obconic +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
sessile +  and petiolate +
2.5 cm25 mm <br />0.025 m <br /> (4 cm40 mm <br />0.04 m <br />) +
1 cm10 mm <br />0.01 m <br /> (?) +  and 2.5 cm25 mm <br />0.025 m <br /> (?) +
deltate +
dentate to pinnatifid or palmatifid +  and entire +
2-carpellate +
persistent +
aristate +
2.5 cm25 mm <br />0.025 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Flowering Sep–Oct. +
Repert. Spec. Nov. Regni Veg. +
bearing subulate enations +, hairy +  and bristly +
turner1996b +
white;tawny or purplish +
distinct +
elliptic +  and lanceolate +
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
exalbuminous +
Illustrated +
branched +  and simple +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Schkuhria anthemoidea +, Schkuhria anthemoidea var. wislizeni +, Schkuhria anthemoidea var. wrightii +, Schkuhria virgata +, Schkuhria wislizeni +, Schkuhria wislizeni var. frustrata +  and Schkuhria wislizeni var. wrightii +
Schkuhria pinnata +
Schkuhria +
species +
campanulate +
80 cm800 mm <br />0.8 m <br /> (300 cm3,000 mm <br />3 m <br />) +
1 cm10 mm <br />0.01 m <br /> (80 cm800 mm <br />0.8 m <br />) +
toothed +  and entire +
80 cm800 mm <br />0.8 m <br /> (300 cm3,000 mm <br />3 m <br />) +
5 cm50 mm <br />0.05 m <br /> (50 cm500 mm <br />0.5 m <br />) +
40 cm400 mm <br />0.4 m <br /> (70 cm700 mm <br />0.7 m <br />) +