Phoebanthus

S. F. Blake

Proc. Amer. Acad. Arts 51: 520. 1916.

Common names: False sunflower
Etymology: Greek phoebus, the sun, and anthos, flower
Treatment appears in FNA Volume 21. Treatment on page 113. Mentioned on page 65, 66.
 TaxonIllustrator 
FNA21 P17 Phoebanthus grandiflo.jpegPhoebanthus grandiflorus
Helianthella quinquenervis
Flourensia cernua
Marjorie C. Leggitt
Yevonn Wilson-Ramsey
Barbara Alongi

Perennials, 40–100+ cm (aerial stems from relatively slender, horizontal tubers). Stems erect, branched mostly distally (among heads, leafy). Leaves cauline; all opposite, or proximal opposite and distal alternate, or all alternate; sessile; blades (usually 1-nerved) linear-filiform or linear to linear-lanceolate, bases ± cuneate or rounded, margins entire (revolute), faces scabrous (adaxial) and sparsely hispid-scabrous, glanddotted as well. Heads radiate, borne singly or (2–6) in open, ± corymbiform arrays. Involucres hemispheric to campanulate, 10–20 mm diam. Phyllaries persistent, 20–40+ in 2–3+ series (green, subequal, herbaceous, strigillose to hispid). Receptacles convex, paleate (paleae tan, conduplicate, trilobed or tricuspidate). Ray-florets 10–20, neuter; corollas yellow (apices 2–4-lobed). Disc-florets 40–100+, bisexual, fertile; corollas yellow, tubes shorter than narrowly campanulate throats, lobes 5, triangular. Cypselae (purplish black) obpyramidal, slightly compressed; pappi 0, or persistent or fragile, of 1–2 lacerate scales (over cypsela shoulders) plus 0–6 lacerate or bristlelike shorter scales. x = 17.

Distribution

se United States

Discussion

Species 2 (2 in the flora).

Selected References

None.

Key

1 Leaves linear to linear-lanceolate, the larger 3–7 mm wide; phyllaries appressed Phoebanthus grandiflorus
1 Leaves linear-filiform, the larger 0.5–2 mm wide; phyllaries spreading Phoebanthus tenuifolius

"broader" is not a number.

... more about "Phoebanthus"
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 +
Edward E. Schilling +
S. F. Blake +
bristlelike +
coroniform +
rounded +  and cuneate +
compound +  and simple +
linear;linear-lanceolate +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
False sunflower +
hairy +  and glabrous +
compressed +  and obpyramidal +
fertile +  and bisexual +
fertile +  and bisexual +
se United States +
Greek phoebus, the sun, and anthos, flower +
stipitate-glandular +, hairy +  and glabrous +
hispid-scabrous +  and scabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
hemispheric;campanulate +
sessile +  and petiolate +
triangular +
2-carpellate +
persistent +
0 +  and 6 +
lacerate +
20 +  and 40 +
unequal +  and subequal +
Proc. Amer. Acad. Arts +
sterile +  and fertile +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Enceliinae +, Undefined (tribe Undefined) subtribe Engelmanniinae +, Undefined (tribe Undefined) subtribe Spilanthinae +, Undefined (tribe Undefined) subtribe Verbesininae +  and Undefined (tribe Undefined) subtribe Zinniinae +
Phoebanthus +
Asteraceae (tribe Heliantheae) subtribe Ecliptinae +
campanulate +
cylindric +
shorter to longer than campanulate +
toothed +  and entire +
40 cm400 mm <br />0.4 m <br /> (100 cm1,000 mm <br />1 m <br />) +
shrub +  and subshrub +