Solidago speciosa var. rigidiuscula

Torrey & A. Gray

Fl. N. Amer. 2: 205. 1842.

IllustratedEndemic
Synonyms: Solidago chandonnettii E. S. Steele Solidago rigidiuscula (Torrey & A. Gray) Porter Solidago venulosa Greene
Treatment appears in FNA Volume 20. Treatment on page 124. Mentioned on page 123.

Leaves: basal persisting or not to flowering, 8–20 mm wide, often entire or serrulate; mid cauline 4–15 (–20) mm wide, often crowded, usually stiff, often somewhat scabrous. 2n = 18.


Phenology: Flowering (Aug–)Sep–Oct.
Habitat: Sandy and gravelly soils, grasslands, oak savannas, open woods, road embankments
Elevation: 100–900+ m

Distribution

V20-248-distribution-map.gif

Ont., Ill., Ind., Iowa, Kans., Ky., La., Mich., Minn., Mo., Nebr., N.Dak., Ohio., Okla., S.Dak., Tenn., Tex., Wis.

Discussion

Variety rigidiuscula is found in western portions of the deciduous forest and adjacent prairies and in glade habitats farther east. It tends to be shorter and have more compact, elongate arrays than var. speciosa. Plants with persistent basal leaves have been erroneously referred to var. angustata, which is a synonym of var. speciosa. Plants similar to var. rigidiuscula occur scattered farther east; they are more likely to be water-stressed individuals of var. speciosa.

Selected References

None.

Lower Taxa

None.

"wide" is not a number.

not tailed +, rounded +  and obtuse +
distinct +
acute;obtuse or rounded +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
paniculiform +  and thyrsiform +
7 cm70 mm <br />0.07 m <br /> (12 cm120 mm <br />0.12 m <br />) +
indeterminate +  and determinate +
elongate +
3cm +  and 7cm +
John C. Semple +  and Rachel E. Cook +
Torrey & A. Gray +
serrulate +  and entire +
not +  and persisting +
not persisting +
decurrent +
compound +  and simple +
2.5 cm25 mm <br />0.025 m <br /> (9 cm90 mm <br />0.09 m <br />) +
narrowly ovate;lanceolate or elliptic +
reduced +
0.5 cm5 mm <br />0.005 m <br /> (3 cm30 mm <br />0.03 m <br />) +
rugulose +  and muricate +
not 2-lipped +  and actinomorphic +
yellow +  and white +
ampliate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
compressed +, narrowly obconic +  and cylindric +
fertile +  and bisexual +
fertile +  and bisexual +
Ont. +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, La. +, Mich. +, Minn. +, Mo. +, Nebr. +, N.Dak. +, Ohio. +, Okla. +, S.Dak. +, Tenn. +, Tex. +  and Wis. +
100–900+ m +
resinous +
scabroso-strigose +, glabrous +, glabrate +  and sparsely strigillose +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Sandy and gravelly soils, grasslands, oak savannas, open woods, road embankments +
5 cm50 mm <br />0.05 m <br /> (10 cm100 mm <br />0.1 m <br />) +
indeterminate +
10 cm100 mm <br />0.1 m <br /> (45 cm450 mm <br />0.45 m <br />) +
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 +
0.4 cm4 mm <br />0.004 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
0.17 cm1.7 mm <br />0.0017 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.5mm;1mm +
cauline +, proximal +  and basal +
tapering +
erect;spreading +
triangular +  and narrowly lanceolate +
sharply serrate +  and crenate or entire +
serrulate to entire +
0.4 cm4 mm <br />0.004 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
linear-lanceolate +  and oblong or ovate +
unequal +  and rarely subequal +
2-carpellate +
persistent +
0.3 cm3 mm <br />0.003 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
scabroso-strigillose +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
not persisting +
Flowering (Aug–)Sep–Oct. +
stipitate-glandular +
ovate-oblanceolate +
Fl. N. Amer. +
bearing subulate enations +, hairy +  and bristly +
strigillose +  and glabrous +
8 +  and 10 +
exalbuminous +
Illustrated +  and Endemic +
1 (?) +  and 5 (?) +
strigillose +  and glabrous +
appendaged +  and truncate +
papillate +  and smooth +
Solidago chandonnettii +, Solidago rigidiuscula +  and Solidago venulosa +
Solidago speciosa var. rigidiuscula +
Solidago speciosa +
variety +
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 />) +
30 cm300 mm <br />0.3 m <br /> (50 cm500 mm <br />0.5 m <br />) +