Solidago subsect. Venosae

(G. Don) G. L. Nesom

Phytologia 75: 9. 1993.

Basionym: Solidago (sect. Undefined) ser. Venosae G. Don in J. C. Loudon, Hort. Brit., 348. 1830
Synonyms: Notabiles Mackenzie Ulmifoliae Mackenzie Venosae (G. Don) de Candolle
Treatment appears in FNA Volume 20. Treatment on page 143. Mentioned on page 110, 144, 148, 149.

Leaves: basal withering by flowering, proximalmost cauline petiolate or sessile, usually withering by flowering, proximal usually largest, not 3-nerved (except S. drummondii), usually with pronounced lateral nerves along entire midnerve. Heads in thyrsiform-paniculiform, open to congested, cone-shaped secund arrays, proximal branches arching, secund, often proximalmost elongate and array repeated distally. Phyllaries not striate, eglandular. Pappi bristles usually in 2, rarely in 3 series (shorter, outer setiform scales rarely present, inner weakly, if at all, clavate, moderately so in S. odora).

Discussion

Species 7 (7 in the flora).

Selected References

None.

Key

1 Stems developing from branched caudices or short rhizomes, elongate rhizomes 0 > 2
1 Stems developing from elongate creeping rhizomes > 4
2 Leaves coarsely to finely serrate, not gland-dotted, usually anise-scented whencrushed Solidago odora
2 Leaves entire, minutely translucent gland-dotted, not anise-scented > 3
3 Leaves sparsely hirsute at least on abaxial midribs and main nerves Solidago ulmifolia
3 Leaves glabrous Solidago delicatula
4 Mid cauline leaves sessile, ± clasping, obscurely serrulate or subentire, not rugose Solidago fistulosa
4 Leaves subsessile, not clasping, ± strongly serrate, rugose > 5
5 Involucres mostly 4–6 mm; broader phyllaries 0.7–1.2 mm wide; stems glabrousbelow arrays; mid cauline leaves elliptic Solidago latissimifolia
5 Involucres mostly 2.5–4 mm; phyllaries usually less than 0.5 mm wide; stems hairy below arrays (except var. sphagnophila which is glabrous but otherwise like var. rugosa); mid cauline leaves lanceolate to ovate Solidago rugosa
... more about "Solidago subsect. Venosae"
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
secund +, open +  and congested +
indeterminate +  and determinate +
cone--shaped +
John C. Semple +  and Rachel E. Cook +
(G. Don) G. L. Nesom +
not persisting +
decurrent +
Solidago (sect. Undefined) ser. Venosae +
compound +  and simple +
rugulose +  and muricate +
proximalmost +
elongate +
not 2-lipped +  and actinomorphic +
yellow +  and white +
ampliate +
beaked +, 2-ribbed +  and 5-ribbed +
compressed +, narrowly obconic +  and cylindric +
fertile +  and bisexual +
fertile +  and bisexual +
North America +
resinous +
stipitate-glandular +, puberulent +, pilose +, glabrous +, glabrous or +  and sparsely densely scabrous strigillose or villous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.3 cm3 mm <br />0.003 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
campanulate;cylindric +
0.17 cm1.7 mm <br />0.0017 m <br /> (1 cm10 mm <br />0.01 m <br />) +
erect;spreading +
triangular +  and narrowly lanceolate +
linear-lanceolate +  and oblong or ovate +
unequal +  and rarely subequal +
2-carpellate +
persistent +
not persisting +
stipitate-glandular +
ovate-oblanceolate +
bearing subulate enations +, hairy +  and bristly +
strigillose +  and glabrous +
8 +  and 10 +
exalbuminous +
decumbent +  and ascending or erect +
appendaged +  and truncate +
papillate +  and smooth +
Notabiles +, Ulmifoliae +  and Venosae +
Solidago subsect. Venosae +
Solidago sect. Solidago +
subsection +
not persisting +
100 cm1,000 mm <br />1 m <br /> (200 cm2,000 mm <br />2 m <br />) +
5 cm50 mm <br />0.05 m <br /> (100 cm1,000 mm <br />1 m <br />) +
tree +, shrub +  and subshrub +