Helianthus salicifolius

A. Dietrich

Allg. Gartenzeitung 2: 337. 1834.

Endemic
Synonyms: Helianthus filiformis Small
Treatment appears in FNA Volume 21. Treatment on page 165. Mentioned on page 144.

Perennials, 150–250+ cm (rhizomatous). Stems (green or purplish) erect, glabrous (glaucous). Leaves cauline; alternate; sessile or subsessile; blades linear to lance-linear, 8–21 × 0.2–1.2 cm, bases ± attenuate, margins slightly serrulate to subentire (flat), abaxial faces glabrate, glanddotted. Heads 6–15+. Peduncles 2–6 cm. Involucres campanulate, 10–18 mm diam. Phyllaries 40–50, linear to lance-linear, 12–20 × 1.8–2 mm, (margins ciliate) apices long-attenuate, abaxial faces glabrous or glabrate, not glanddotted. Paleae 8–10 mm, entire or weakly 3-toothed (apices greenish, ± hirsute). Ray-florets 10–20; laminae 28–35 mm (apices often bifid). Disc-florets 50+; corollas 5.5–6 mm, lobes reddish; anthers dark, appendages dark (style-branches yellow). Cypselae 4–6 mm, glabrous; pappi of 2 aristate scales 3–3.6 mm plus 2–8 lacerate scales 0.3–0.5 mm. 2n = 34.


Phenology: Flowering late summer–fall.
Habitat: Limestone prairies
Elevation: 100–300 m

Distribution

V21-397-distribution-map.gif

Kans., Mo., Nebr., Okla., Tex.

Discussion

Helianthus salicifolius is found chiefly in the region of the Ozark Plateau. It is cultivated and may occasionally escape. It was recorded from a single site in Chicago, Illinois, where it has now been extirpated.

Selected References

None.

Lower Taxa

None.
... more about "Helianthus salicifolius"
glabrate +  and glabrous +
not tailed +, rounded +  and obtuse +
pale +  and dark +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
spiciform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
Edward E. Schilling +
A. Dietrich +
attenuate +
8 cm80 mm <br />0.08 m <br /> (21 cm210 mm <br />0.21 m <br />) +
ovate;linear;ovate;linear;lanceovate;lanceolate;lance-linear;deltate +
0.2cm;1.2cm +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
reddish +  and yellow +
0.55 cm5.5 mm <br />0.0055 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
compressed +  and obpyramidal +
fertile +  and bisexual +
fertile +  and bisexual +
Kans. +, Mo. +, Nebr. +, Okla. +  and Tex. +
100–300 m +
hairy +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Limestone prairies +
in more or less corymbiform , paniculiform or spiciform , arrays +  and singly +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
1 cm10 mm <br />0.01 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
campanulate +
2.8 cm28 mm <br />0.028 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
subsessile +  and sessile +
triangular +
serrate +  and entire +
slightly serrulate +  and subentire +
2-carpellate +
3-toothed;entire +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
persistent +
2 +  and 8 +
coroniform +
2 cm20 mm <br />0.02 m <br /> (6 cm60 mm <br />0.06 m <br />) +
Flowering late summer–fall. +
1.2 cm12 mm <br />0.012 m <br /> (2 cm20 mm <br />0.02 m <br />) +
40 +  and 50 +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Allg. Gartenzeitung +
bearing subulate enations +, hairy +  and bristly +
flat;slightly convex +
lacerate +  and aristate +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
exalbuminous +
procumbent +  and decumbent +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Helianthus filiformis +
Helianthus salicifolius +
Helianthus +
species +
campanulate +
toothed +  and entire +
300 cm3,000 mm <br />3 m <br /> (500 cm5,000 mm <br />5 m <br />) +
150 cm1,500 mm <br />1.5 m <br /> (250 cm2,500 mm <br />2.5 m <br />) +
shrub +  and subshrub +