familyAsteraceae
tribeAsteraceae tribe Astereae
genusSolidago
sectionSolidago sect. Ptarmicoidei
speciesSolidago rigida
subspeciesSolidago rigida subsp. humilis

Solidago rigida subsp. humilis

(Porter) S. B. Heard & Semple

Canad. J. Bot. 66: 1805. 1988.

John C. Semple, Rachel E. Cook
Endemic
Basionym: Solidago rigida var. humilis Porter in T. C. Porter and J. M. Coulter, Syn. Fl. Colorado, 63. 1874
Synonyms: Oligoneuron bombycinum Rydberg Oligoneuron canescens (Linnaeus) Small Oligoneuron rigidum var. humilis (Porter) G. L. Nesom S. bombycinum (Rydberg) Friesner S. canescens (Kuntze) Fernald S. jacksonii var. humilis (Porter) Beaudry S. parvirigida S. rigida var. canescens (Rydberg) Breitung
Treatment appears in FNA Volume 20. Treatment on page 163. Mentioned on page 164.

Stems 40–70 (–90) cm, densely (less coarsely) hispid (30–70 hairs/mm2). Leaves: basal (often numerous), small, rarely exceeding 120 × 50 mm; faces densely (less coarsely) hispid (20–60 hairs/mm2); mid to distal lanceolate to ovate. Heads in tightly clumped, usually rounded arrays, 3–13 (–23.5) × (3.5–) 6–13 (–18) cm. Peduncles densely hispido-strigose. Phyllaries: outer densely strigillose; inner often more nearly linear, 0.7–1.2 mm wide, conspicuously strigillose. Disc corolla lobes shallow, 0.9–1.2 (–1.3) mm. Cypselae usually strigillose distally. 2n = 18.


Phenology: Flowering Aug–Oct.
Habitat: Dry to mesic, often sandy or eroded, soils, prairies and open meadows, open grassy clearings in woods
Elevation: 200–1900+ m

Distribution

V20-357-distribution-map.gif

Alta., Man., Ont., Sask., Colo., Ill., Ind., Iowa, Kans., Mich., Mo., Mont., Nebr., N.Mex., N.Dak., Okla., S.Dak., Tex., Wis., Wyo.

Discussion

Subspecies humilis is introduced in Illinois, Indiana, Michigan, and Ontario. The involucres are slightly smaller than those of typical variety.

Selected References

None.

Lower Taxa

None.
... more about "Solidago rigida subsp. humilis"
RDF feed
2n chromosome quantity
18 +
Anther base shape
not tailed +, rounded +  and obtuse +
Anther dehiscence
introrse +
Anther fusion
connate +
Apex fusion
distinct +
Apex growth form or texture
herbaceous +
Apex length
80mm;200mm +
Apex life cycle
flowering +
Apex prominence or shape
flat +
Apex pubescence
hairy +
Apex shape
acute;obtuse +
Apex size
subequal +
Apex texture
firm +
Apex width
24mm +  and 50mm +
Apical appendage quantity
0 +
Apical appendage shape
usually triangular +  and linear +
Appendage pubescence
hirsute +
Appendage relief
papillate +
Appendage shape
usually deltate +  and lanceolate +
Array architecture
corymbiform +
Array arrangement
clumped +
Array atypical width
13 cm130 mm <br />0.13 m <br /> (18 cm180 mm <br />0.18 m <br />) +
Array development
indeterminate +  and determinate +
Array shape
rounded +
Array width
6cm +  and 13cm +
Author
John C. Semple +  and Rachel E. Cook +
Authority
(Porter) S. B. Heard & Semple +
Band architecture
continuous +
Band quantity
1 +
Basal leaf presence
absent +
Basal leaf size
largest +
Base shape
decurrent +
Basionyms
Solidago rigida var. humilis +
Blade architecture
compound +  and simple +
Blade fragility
stiff +
Blade length
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Blade life cycle
flowering +
Blade prominence or shape
flat +
Blade pubescence
hairy +
Blade shape
ovate;obtuse;acute +
Blade size
reduced +
Blade texture
firm +
Blade width
1.5 cm15 mm <br />0.015 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
Body architecture or pubescence or relief
smooth +
Body architecture or shape
ribbed +
Body relief
rugulose +  and muricate +
Bracteole quantity
1;3 +
Bracteole shape
linear-lanceolate +
Branch arrangement or course or shape
linear +
Branch length or size
long +
Branch orientation
spreading +
Branch pubescence
hairy +
Branch structure in adjective form
stigmatic +
Bristle architecture
barbellate +
Bristle length or size
longer +
Bristle pappus duration
persistent +
Bristle quantity
25;45 +
Calyculus presence
absent +
Caudex architecture
branching +
Caudex texture
woody +
Cauline leaf architecture
sessile +
Corolla architecture
not 2-lipped +  and actinomorphic +
Corolla coloration
yellow +  and white +
Corolla lobe atypical some measurement
0.12 cm1.2 mm <br />0.0012 m <br /> (0.13 cm1.3 mm <br />0.0013 m <br />) +
Corolla lobe depth
shallow +
Corolla lobe some measurement
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
Corolla presence
absent +
Corolla size
ampliate +
Corolla some measurement
0.43 cm4.3 mm <br />0.0043 m <br /> (0.61 cm6.1 mm <br />0.0061 m <br />) +
Cypsela architecture
monomorphic +
Cypsela architecture or shape
beaked +, 2-ribbed +  and 5-ribbed +
Cypsela growth form
dimorphic +
Cypsela pubescence
strigillose +
Cypsela shape
compressed +, narrowly obconic +  and cylindric +
Cypsela some measurement
0.8mm;1.7mm +
Disc-floret atypical quantity
35 (60) +
Disc-floret quantity
14 (35) +
Disc-floret reproduction
fertile +  and bisexual +
Disc floret architecture
staminate +
Disc floret reproduction
fertile +  and bisexual +
Distribution
Alta. +, Man. +, Ont. +, Sask. +, Colo. +, Ill. +, Ind. +, Iowa +, Kans. +, Mich. +, Mo. +, Mont. +, Nebr. +, N.Mex. +, N.Dak. +, Okla. +, S.Dak. +, Tex. +, Wis. +  and Wyo. +
Elevation
200–1900+ m +
Embryo course
straight +
Face architecture
3-nerved +
Face coating
resinous +
Face length
8 cm80 mm <br />0.08 m <br /> (20 cm200 mm <br />0.2 m <br />) +
Face life cycle
flowering +
Face position or shape
distal +
Face prominence or shape
flat +
Face pubescence
hispid +
Face shape
obtuse;acute +
Face texture
firm +
Face width
24mm;50mm +
Filament fusion
distinct +
Floret architecture
pistillate +, staminate +  and neuter +
Floret atypical quantity
5;15 +
Floret position
proximal +
Floret quantity
1;5 +
Floret reproduction
bisexual +
Fruit architecture
winged +  and beaked +
Fruit condition or texture
dry +
Fruit density
dispersed +
Habitat
Dry to mesic, often sandy or eroded, soils, prairies and open meadows, open grassy clearings in woods +
Head architecture
glomerulate +
Head architecture or arrangement
compact +
Head architecture or shape
discoid +
Head arrangement
singly +
Head atypical length
13 cm130 mm <br />0.13 m <br /> (23.5 cm235 mm <br />0.235 m <br />) +
Head atypical quantity
1 (2) +
Head development
indeterminate +
Head length
3 cm30 mm <br />0.03 m <br /> (13 cm130 mm <br />0.13 m <br />) +
Head quantity
9;190 +
Head reproduction
heterogamous +  and homogamous +
Illustration copyright
Flora of North America Association +
Illustrator
Marjorie C. Leggitt +
Individual head architecture
each +  and sessile +
Inner phyllarie arrangement or course or shape
linear +
Inner phyllarie pubescence
strigillose +
Inner phyllarie width
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
Inner series length
clavate +
Involucre length
0.3 cm3 mm <br />0.003 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Involucre position relational
surrounding +
Involucre shape
campanulate +
Involucre some measurement
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Involucre width
0.17 cm1.7 mm <br />0.0017 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Lamina length
1.4mm;5.4mm +
Lamina width
1.2mm;1.9mm +
Leaf architecture
sessile +  and petiolate +
Leaf arrangement
alternate +
Leaf length
120 cm1,200 mm <br />1.2 m <br /> (?) +
Leaf position
cauline +, proximal +  and basal +
Leaf position or shape
distal +
Leaf position relational
exceeding +
Leaf presence
absent +
Leaf size
small +
Leaf width
50 cm500 mm <br />0.5 m <br /> (?) +
Line quantity
2 +
Lobe atypical quantity
4 (5) +
Lobe orientation
erect;spreading +
Lobe quantity
5 (?) +
Lobe shape
triangular +  and narrowly lanceolate +
Lobe some measurement
? (?) +
Long-petiole length
8 cm80 mm <br />0.08 m <br /> (20 cm200 mm <br />0.2 m <br />) +
Long-petiole life cycle
flowering +
Long-petiole prominence or shape
flat +
Long-petiole pubescence
hairy +
Long-petiole shape
obtuse +  and acute +
Long-petiole texture
firm +
Long-petiole width
2.4 cm24 mm <br />0.024 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Margin architecture or shape
serrate +  and entire +
Margin length
8 cm80 mm <br />0.08 m <br /> (20 cm200 mm <br />0.2 m <br />) +
Margin life cycle
flowering +
Margin prominence or shape
flat +
Margin pubescence
hairy +
Margin shape
undulate +, obtuse +  and acute +
Margin texture
firm +
Margin width
24mm +  and 50mm +
Mid series shape
attenuate +
Mid to distal leaf shape
Lanceolate (Ovate) +
Midnerve coloration or reflectance
translucent +
Midnerve quantity
2 (5) +
Midnerve shape
linear-lanceolate +  and oblong or ovate +
Midnerve size
unequal +  and rarely subequal +
Nerve prominence
prominent +
Nerve quantity
3 (7) +
Number of lower taxa
0 +
Outer phyllarie pubescence
strigillose +
Outer scale quantity
2 +
Outer scale shape
setiform +
Ovary architecture
2-carpellate +
Ovary architecture or structure in adjective form
1-locular +
Ovary position
inferior +
Ovule fixation
attached +
Ovule orientation
anatropous +
Ovule quantity
1 +
Pappus duration
persistent +
Pappus some measurement
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Peduncle pubescence
hispido-strigose +
Peduncle some measurement
0.3 cm3 mm <br />0.003 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Pericarp fragility
tough +
Pericarp width
thick +
Peripheral floret presence
absent +
Peripheral floret quantity
In 1 (3+ series) +
Petal fusion
connate +
Petiole base duration
persisting +
Petiole vasculature duration
persisting +
Phenology
Flowering Aug–Oct. +
Phyllarie architecture
eglandular +
Phyllarie coloration or pubescence or relief
striate +
Phyllarie duration
persistent +
Phyllarie fusion
distinct +
Phyllarie life cycle
falling +
Phyllarie quantity
10 (35) +
Phyllarie shape
obtuse +  and oblong +
Phyllarie size
unequal +
Phyllarie texture
Herbaceous (Chartaceous or scarious) +
Proximal blade architecture
3-nerved +
Proximal blade shape
ovate-oblanceolate +
Proximalmost cauline leaf architecture
petiolate +
Proximalmost cauline leaf life cycle
withered +
Proximalmost cauline leaf presence
absent +
Publication title
Canad. J. Bot. +
Publication year
1988 +
Ray-floret architecture
pistillate +
Ray-floret atypical quantity
15 (24) +
Ray-floret presence
absent +
Ray-floret quantity
6 (13) +
Ray-floret reproduction
fertile +
Receptacle architecture
epaleate +
Receptacle pubescence
bearing subulate enations +, hairy +  and bristly +
Receptacle relief
pitted +
Receptacle shape
convex +
Reference
None +
Rhizome texture
woody +
Rib pubescence
strigillose +  and glabrous +
Rib quantity
8 +  and 10 +
Root texture
fibrous +
Seed architecture
exalbuminous +
Seed quantity
1 +
Sepal variability
modifed +
Series atypical quantity
1 (2) +
Series quantity
3;4 +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V20 357.xml +
Special status
Endemic +
Stamen arrangement
alternate +
Stamen atypical quantity
4 (5) +
Stamen quantity
5 +
Stem architecture
branched +
Stem atypical some measurement
70 cm700 mm <br />0.7 m <br /> (90 cm900 mm <br />0.9 m <br />) +
Stem fragility or size
stout +
Stem orientation
erect +
Stem pubescence
hispid +
Stem quantity
1 +  and 10 +
Stem some measurement
40 cm400 mm <br />0.4 m <br /> (70 cm700 mm <br />0.7 m <br />) +
Style-branch appendage shape
triangular +
Style-branch architecture
appendaged +  and truncate +
Style architecture
2-branched +
Style pubescence
glabrous +
Style quantity
1 +
Style relief
papillate +  and smooth +
Synonyms
Oligoneuron bombycinum +, Oligoneuron canescens +, Oligoneuron rigidum var. humilis +, S. bombycinum +, S. canescens +, S. jacksonii var. humilis +, S. parvirigida +  and S. rigida var. canescens +
Taxon family
Asteraceae +
Taxon name
Solidago rigida subsp. humilis +
Taxon parent
Solidago rigida +
Taxon rank
subspecies +
Tube height or length or size
shorter +
Volume
Volume 20 +
Whole-organism atypical some measurement
100 cm1,000 mm <br />1 m <br /> (200 cm2,000 mm <br />2 m <br />) +
Whole-organism duration
perennial +
Whole-organism some measurement
5 cm50 mm <br />0.05 m <br /> (100 cm1,000 mm <br />1 m <br />) +
Whole organism growth form
plant +
Whole organism some measurement
30cm (150cm) +
X chromosome quantity
9 +