Solidago mollis

Bartling

Index Seminum (Göttingen) 1836: 5. 1836.

Common names: Soft or velvet (y) or Ashly goldenrod
Endemic
Synonyms: Doria incana (Torrey & A. Gray) Lunell Doria mollis (Bartling) Lunell Solidago incana Torrey & A. Gray Solidago mollis var. angustata Shinners Solidago nemoralis var. incana (Torrey & A. Gray) A. Gray Solidago nemoralis var. mollis (Bartling) A. Gray
Treatment appears in FNA Volume 20. Treatment on page 161. Mentioned on page 159, 160.

Plants loosely clustered, 10–50 (–70) cm; rhizomes creeping. Stems 1 (at ends of rhizomes), ascending to erect, grayish green, moderately to densely finely strigilloso-puberulent. Leaves: basal and proximal often withering by flowering, gradually tapering to winged petioles 1/2 length of leaf, blades 45–100 × 10–35 mm, proximalmost much smaller, margins serrate, faces moderately finely scabroso-strigillose; mid and distal cauline sessile, blades elliptic to lanceolate or ovate, 10–60 × 4–20 mm, sometimes much reduced distally, firm, thickish, margins serrate to entire, strongly 3-nerved or sometimes brochidodromous, faces moderately finely strigillose. Heads (5–) 50–300, in compact thyrsiform to secund-pyramidal paniculiform arrays, proximal branches ascending, sometimes apically recurved or branches spreading, recurved, secund. Peduncles 0.5–3 mm, moderately to densely finely hispiduloso-strigillose; bracteoles 0–3, lanceolate, strigillose, grading into phyllaries. Involucres campanulate, 3–6 mm. Phyllaries in 3–4 series, lanceolate to oblong (to 1.5 mm wide), strongly unequal, margins ciliate, apices acute to obtuse, glabrous. Ray-florets 6–10; laminae 1–2 × 0.2–0.6 mm. Disc-florets 3–8; corollas 2.4–3.8 mm, lobes 0.7–1.2 mm. Cypselae (cylindro-obconic) 1.5–2 mm, sparsely strigillose; pappi ca. 2–3 mm. 2n = 18, 36, 54.


Phenology: Flowering Jul–Oct.
Habitat: Dry or drying prairies, open woods, along fence rows
Elevation: 300–1700 m

Distribution

V20-352-distribution-map.gif

Alta., Man., Sask., Colo., Iowa, Kans., Minn., Mont., Nebr., N.Mex., N.Dak., Okla., S.Dak., Tex., Wis., Wyo.

Discussion

Solidago mollis is quite variable in array shape, which ranges from compact club-shaped to elongate pyramid-shaped, the apex leaning to one side. Plants with narrower, more sparsely strigose leaves that are similar in appearance to those of S. radula but are not scabrous have been treated as var. angustata Shinners. Those occur in Oklahoma and Texas. G. L. Nesom (1993b) discussed the possible conspecificity of S. mollis and S. velutina (including S. sparsiflora and S. californica); this does not appear to be justified based on morphology and habitat differences.

Selected References

None.

Lower Taxa

None.
... more about "Solidago mollis"
54 +, 36 +  and 18 +
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
thyrsiform +  and secund-pyramidal paniculiform +
indeterminate +  and determinate +
cone--shaped +
John C. Semple +  and Rachel E. Cook +
Bartling +
not persisting +
decurrent +
Nemorales +
compound +  and simple +
1 cm10 mm <br />0.01 m <br /> (6 cm60 mm <br />0.06 m <br />) +
elliptic;lanceolate or ovate +
reduced +
thickish;4mm;20mm +
rugulose +  and muricate +
lanceolate +
recurved;spreading +
Soft or velvet (y) or Ashly goldenrod +
not 2-lipped +  and actinomorphic +
yellow +  and white +
ampliate +
0.24 cm2.4 mm <br />0.0024 m <br /> (0.38 cm3.8 mm <br />0.0038 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
compressed +, narrowly obconic +  and cylindric +
fertile +  and bisexual +
fertile +  and bisexual +
Alta. +, Man. +, Sask. +, Colo. +, Iowa +, Kans. +, Minn. +, Mont. +, Nebr. +, N.Mex. +, N.Dak. +, Okla. +, S.Dak. +, Tex. +, Wis. +  and Wyo. +
300–1700 m +
resinous +
strigillose +  and scabroso-strigillose +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Dry or drying prairies, open woods, along fence rows +
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 +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.17 cm1.7 mm <br />0.0017 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.2mm;0.6mm +
cauline +, mid +, proximal +  and basal +
strigoso-canescent +
erect;spreading +
triangular +  and narrowly lanceolate +
brochidodromous +  and 3-nerved +
linear-lanceolate +  and oblong or ovate +
unequal +  and rarely subequal +
2-carpellate +
persistent +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
hispiduloso-strigillose +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
not persisting +
1/2 length of leaf +
Flowering Jul–Oct. +
not stipitate-glandular +
lanceolate +  and oblong +
ovate-oblanceolate +
recurved +  and ascending +
petiolate +  and subpetiolate +
Index Seminum (Göttingen) +
bearing subulate enations +, hairy +  and bristly +
strigillose +  and glabrous +
8 +  and 10 +
exalbuminous +
grayish green +
ascending +  and erect +
appendaged +  and truncate +
papillate +  and smooth +
Doria incana +, Doria mollis +, Solidago incana +, Solidago mollis var. angustata +, Solidago nemoralis var. incana +  and Solidago nemoralis var. mollis +
Solidago mollis +
Solidago subsect. Nemorales +
species +
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 />) +