Heliopsis gracilis

Nuttall

Trans. Amer. Philos. Soc., n. s. 7: 353. 1840.

Common names: Smooth or pinewoods oxeye
Endemic
Synonyms: Heliopsis helianthoides var. gracilis (Nuttall) Gandhi & R. D. Thomas Heliopsis laevis var. minor Hooker Heliopsis minor (Hooker) C. Mohr
Treatment appears in FNA Volume 21. Treatment on page 69. Mentioned on page 68, 70.

Perennials, 30–40 (–80) cm. Aerial stems (from creeping rhizomes 4–10+ cm × 1–2 mm, rhizome internodes ca. 20+ mm) 1–2+, stramineous to redbrown, glabrous. Leaf-blades ovatelanceolate to lanceolate, 4–8 × 1.5–3 cm, margins regularly dentate to subentire, apices acuminate, abaxial faces glabrous or inconspicuously short-hairy, adaxial faces sparingly scabrellous. Heads 1–3 (–5). Peduncles mostly 10–15 cm. Involucres 7–15 mm diam. Phyllaries minutely pubescent on margins and apices, less so on abaxial faces. Paleae lanceolate, apices obtuse, faces glabrous. Ray-florets 6–8 (–13); corollas golden yellow, laminae 10–22 × 4–8 mm. Disc-florets 10–20+; corollas pale brown-yellow (lobes dull yellow), 3.5–4 mm, glabrous. Cypselae dark-brown, 4–5 mm, glabrous or minutely pubescent on margins, smooth or nearly so; pappi coroniform (each a laciniate crown plus 1–3 toothlike scales).


Phenology: Flowering spring–summer.
Habitat: Open wooded slopes, especially with pines
Elevation: 0–100 m

Distribution

V21-150-distribution-map.gif

Ala., Ark., Fla., Ga., La., Tex.

Discussion

A. Cronquist (1980) and others have alluded to intermediates between Heliopsis gracilis and H. helianthoides var. scabra in Louisiana; I have seen none. Heliopsis gracilis is distinguishable from var. scabra by the abaxially and adaxially glabrous or nearly glabrous leaf blades, smaller plant size, single or relatively few heads, and long-creeping, narrow rhizomes. Presence of H. gracilis in southeast Texas (D. S. Correll and M. C. Johnston 1970) has not been confirmed.

I am uncertain whether the type of Heliopsis laevis var. minor, collected from near New Orleans, is referable to H. gracilis, as A. Cronquist (1980) thought, or to H. helianthoides var. scabra, where it was placed by T. R. Fisher (1957) and others. If the latter, then var. minor has priority over var. scabra.

Selected References

None.

Lower Taxa

None.

"broader" is not a number.

... more about "Heliopsis gracilis"
short-hairy +  and glabrous +
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
spiciform +, racemiform +, paniculiform +, corymbiform +  and cymiform +
indeterminate +  and determinate +
Alan R. Smith +
Nuttall +
bristlelike +
coroniform +
cuneate to subtruncate +  and cuneate +
ovate;lanceolate +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
Smooth or pinewoods oxeye +
pale brown-yellow +  and golden yellow +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
pubescent +  and glabrous +
4-angled +  and subterete +
fertile +  and bisexual +
fertile +  and bisexual +
Ala. +, Ark. +, Fla. +, Ga. +, La. +  and Tex. +
0–100 m +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Open wooded slopes, especially with pines +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.7 cm7 mm <br />0.007 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
turbinate;hemispheric +
10mm;22mm +
4 cm40 mm <br />0.04 m <br /> (8 cm80 mm <br />0.08 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
deltate +
dentate to pinnatifid or palmatifid +  and entire +
regularly dentate +  and subentire +
2-carpellate +
lanceolate +
persistent +
coroniform +
10 cm100 mm <br />0.1 m <br /> (15 cm150 mm <br />0.15 m <br />) +
Flowering spring–summer. +
12 +  and 20 +
unequal +  and subequal +
Trans. Amer. Philos. Soc., n. s. +
bearing subulate enations +, hairy +  and bristly +
convex;conic +
exalbuminous +
stramineous +  and redbrown +
trailing +  and erect +
1 +  and 2 +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Heliopsis helianthoides var. gracilis +, Heliopsis laevis var. minor +  and Heliopsis minor +
Heliopsis gracilis +
Heliopsis +
species +
cylindric +
cylindric +
shorter to longer than campanulate +
toothed +  and entire +
40 cm400 mm <br />0.4 m <br /> (80 cm800 mm <br />0.8 m <br />) +
30 cm300 mm <br />0.3 m <br /> (40 cm400 mm <br />0.4 m <br />) +
shrub +  and subshrub +