familyOnagraceae
subfamilyOnagraceae subfam. Onagroideae
tribeOnagraceae tribe Epilobieae
genusChamaenerion
speciesChamaenerion angustifolium
subspeciesChamaenerion angustifolium subsp. angustifolium

Chamaenerion angustifolium subsp. angustifolium

Peter C. Hoch
Synonyms: Chamaenerion angustifolium var. spectabile Simmons C. spicatum (Lamarck) Gray Epilobium angustifolium var. albiflorum Dumortier E. angustifolium var. album G. Don E. angustifolium var. pygmaeum Jepson E. spicatum Lamarck E. spicatum var. leucanthum Wender
Treatment appears in FNA Volume 10.
Please click on the illustration for a higher resolution version.
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Stems 20–130 cm, subglabrous. Leaves subsessile; cauline blades linear-lanceolate to narrowly lanceo­late, (3–) 7–14 (–18.5) × (0.3–) 0.7–1.3 (–2.5) cm, base rounded to cuneate, margins usually entire, rarely low-denticulate, surfaces and veins glabrous. Inflorescences subglabrous; bracts 5–20 mm. Flowers: sepals 6–15 × 1.5–2.5 mm, acute or acuminate; petals obovate to narrowly obovate, 9–15 (–19) × 3–9 (–11) mm, entire or scarcely emarginate; filaments 7–14 mm; anthers 2–2.5 mm; pollen 3-porate (rarely 4-porate), 60–75 µm diam.; ovaries 6–20 mm, style 8–14 mm. Capsules 4–8 cm; pedicels 0.5–2 cm. Seeds 0.9–1 × 0.3–0.4 mm. 2n = 36.


Phenology: Flowering Jun–Sep.
Habitat: Moist, often disturbed, places in mountains or in lower areas, frequent especially after fires.
Elevation: 0–3800 m.

Distribution

Greenland, Alta., B.C., Man., Nfld. and Labr., N.W.T., N.S., Nunavut, Ont., Que., Sask., Yukon, Alaska, Idaho, Minn., Mont., Pa., Utah, Wash., Wyo., Eurasia

Discussion

Plants with white corollas, only a minor variant, sometimes occur. Because of reduced competition in Arctic regions after fires, large populations of subsp. angustifolium may persist for many years.

Selected References

None.

Lower Taxa

None.

"broader" is not a number.

... more about "Chamaenerion angustifolium subsp. angustifolium"
RDF feed
2n chromosome quantity
36 +
Androecium position
epigynous +
Anther coloration
red +  and rose-purple +
Anther fixation
versatile +
Anther length
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Anther shape
oblong +
Anther some measurement
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Anther width
0.1 cm1 mm <br />0.001 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
Apex architecture or shape
emarginate +  and entire +
Apex pubescence
glabrous +  and canescent +
Apex shape
attenuate +, acuminate +  and attenuate-acute +
Author
Peter C. Hoch +
Authority
(Linnaeus) Scopoli +
Base architecture or shape
entire +
Base atypical length
14 cm140 mm <br />0.14 m <br /> (18.5 cm185 mm <br />0.185 m <br />) +
Base atypical width
1.3 cm13 mm <br />0.013 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Base length
7 cm70 mm <br />0.07 m <br /> (14 cm140 mm <br />0.14 m <br />) +
Base shape
rounded +  and cuneate +
Base width
0.7cm;1.3cm +
Basionyms
Epilobium angustifolium +
Berry architecture or shape
nutlike +
Berry dehiscence
indehiscent +  and loculicidal +
Blade atypical length
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Blade length
5 cm50 mm <br />0.05 m <br /> (23 cm230 mm <br />0.23 m <br />) +
Blade location
below-ground +
Blade margin shape
lobed +, toothed +  and entire +
Blade shape
lanceolate +  and linear or proximally oblong +
Blade size
minute +
Blade width
0.3 cm3 mm <br />0.003 m <br /> (3.4 cm34 mm <br />0.034 m <br />) +
Bract arrangement or course or shape
linear +
Bract size
reduced +
Bract some measurement
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Bud length
0.7 cm7 mm <br />0.007 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
Bud shape
oblong +  and oblanceoloid +
Bud width
0.3 cm3 mm <br />0.003 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
Capsule architecture
pedicellate +
Capsule architecture or dehiscence
splitting +
Capsule architecture or shape
nutlike +
Capsule dehiscence
loculicidal +
Capsule orientation
spreading +  and erect +
Capsule pubescence
appressed-canescent +
Capsule shape
terete +  and quadrangular +
Capsule some measurement
4 cm40 mm <br />0.04 m <br /> (8 cm80 mm <br />0.08 m <br />) +
Carpel quantity
Many (?) +
Caudex texture
woody +
Cauline blade shape
low-denticulate +  and linear-lanceolate +
Cel reproduction
vegetative +
Central column condition
intact +
Chalazal end shape
tapering +
Clone size
large +
Coma coloration
dingy +  and white +
Coma density
dense +
Coma duration
persistent +
Coma fusion
detached +
Coma some measurement
1 cm10 mm <br />0.01 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
Distal blade shape
ovate +, usually linear +  and lanceolate or elliptic +
Distal blade texture
subcoriaceous +
Distribution
Greenland +, Alta. +, B.C. +, Man. +, Nfld. and Labr. +, N.W.T. +, N.S. +, Nunavut +, Ont. +, Que. +, Sask. +, Yukon +, Alaska +, Idaho +, Minn. +, Mont. +, Pa. +, Utah +, Wash. +, Wyo. +  and Eurasia +
Elevation
0–3800 m. +
Embryo-sac coating
oily +
Embryo-sac course
straight +
Embryo-sac presence
absent +
Embryo coating
oily +
Embryo course
straight +
Embryo presence
absent +
Endosperm coating
oily +
Endosperm course
straight +
Endosperm presence
absent +
Filament architecture
dithecal +
Filament base orientation
deflexed +  and erect +
Filament coloration
pink +
Filament fixation
basifixed +  and versatile +
Filament fusion
distinct +
Filament size
subequal +
Filament some measurement
0.7 cm7 mm <br />0.007 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
Floral-tube presence
absent +
Floral-tube quantity
, +
Flower architecture
zygomorphic +
Flower architecture or arrangement or growth form
solitary +
Flower duration
deciduous +
Flower orientation
erect +  and nodding +
Flower part duration
deciduous +
Flower part life cycle
anthesis +
Flower reproduction
protandrous +  and bisexual +
Fruit architecture
pedicellate +
Fruit architecture or dehiscence
splitting +
Fruit dehiscence
loculicidal +
Fruit orientation
spreading +  and erect +
Fruit shape
terete +  and quadrangular +
Fruit size
slender +
Habitat
Moist, often disturbed, places in mountains or in lower areas, frequent especially after fires. +
Herb architecture
caulescent +
Herb arrangement
clumped +
Herb duration
perennial +
Herb fragility
robust +
Herb growth form
suffrutescent +
Illustration
Present +
Inflorescence position
axillary +
Inflorescence position or structure subtype
terminal +
Inflorescence pubescence
subglabrous +
Inflorescence some measurement
5 cm50 mm <br />0.05 m <br /> (50 cm500 mm <br />0.5 m <br />) +
Lateral-vein arrangement
confluent +
Lateral-vein orientation
diverging +
Lateral-vein quantity
10 (25) +
Leaf architecture
subsessile +
Leaf arrangement
subopposite +  and arranged +
Leaf duration
deciduous +
Leaf position
cauline +
Lobe architecture
open +
Lobe length
3mm (6mm) +
Lobe orientation
spreading +
Lobe quantity
Many (?) +
Lobe shape or vernation
revolute +
Lobe structure in adjective form
commissural +
Lobe width
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Locule quantity
many +
Margin architecture or shape
entire +
Margin atypical length
14 cm140 mm <br />0.14 m <br /> (18.5 cm185 mm <br />0.185 m <br />) +
Margin atypical width
1.3 cm13 mm <br />0.013 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Margin length
7 cm70 mm <br />0.07 m <br /> (14 cm140 mm <br />0.14 m <br />) +
Margin shape
rounded +  and cuneate +
Margin width
0.7cm;1.3cm +
Neck height or length or size
short +
Nectary disc architecture or pubescence or relief
smooth +
Nectary disc diameter
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Nectary disc pubescence
glabrous +
Nectary disc shape
4-lobed +
Nectary presence
absent +
Number of lower taxa
0 +
Ovary architecture or structure in adjective form
4-locular +
Ovary position
inferior +
Ovary some measurement
0.6 cm6 mm <br />0.006 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Ovule architecture
bitegmic +
Ovule arrangement or growth form
clustered +
Ovule orientation
anatropous +
Ovule quantity
numerous +  and 1 +
Papilla architecture
multicellular +
Pedicel some measurement
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Perianth position
epigynous +
Petal architecture or shape
emarginate +  and entire +
Petal arrangement
imbricate +
Petal arrangement or shape
convolute +
Petal atypical length
1.5 cm15 mm <br />0.015 m <br /> (1.9 cm19 mm <br />0.019 m <br />) +
Petal atypical width
0.9 cm9 mm <br />0.009 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
Petal coloration
white +, usually rose-purple +  and pale-pink +
Petal length
9mm +  and 15mm +
Petal orientation
spreading +
Petal presence
absent +
Petal quantity
18 +, 15 +, 11 +, 10 +  and 7 +
Petal shape
obovate +  and narrowly obovate +
Petal width
0.3 cm3 mm <br />0.003 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Petiole some measurement
0 cm0 mm <br />0 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Phenology
Flowering Jun–Sep. +
Pollen-grain dehiscence or orientation
longitudinal +
Pollen architecture
3-porate +
Pollen coloration
bluish gray +
Pollen dehiscence
3(-5)-aperturate +
Pollen diameter
60um (75um) +
Polyad arrangement
singly +
Proximal blade shape
triangular-ovate +  and lanceolate +
Proximal blade size
small +
Proximal blade texture
coriaceous +  and submembranous +
Proximal leaf size
reduced +
Publication title
Fl. Carniol. ed. +
Publication year
1771 +
Raceme orientation
erect +
Raphide quantity
abundant +
Reference
None +
Rhizome orientation
horizontal +
Rhizome quantity
0.5 (2) +
Rosette position
basal +  and cauline +
Row quantity
1 +
Secretion condition
wet +
Secretion condition or texture
dry +
Secretion relief
papillate +
Secretion shape
clavate +  and globose +
Seed coloration
gray-brown +
Seed length
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Seed quantity
18 +, 200 +  and 500 +
Seed relief
sculptured +  and smooth +
Seed shape
narrowly obovoid +  and oblong +
Seed width
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
Sepal arrangement or dehiscence
valvate +
Sepal coloration
purplish green +
Sepal duration
deciduous +
Sepal length
? (?) +
Sepal orientation
spreading +
Sepal position
upper +
Sepal quantity
4 +  and 2 +
Sepal shape
acuminate +  and acute +
Sepal width
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Septum architecture
parenchymatous +
Septum arrangement
parietal +, axile +  and placentation +
Septum presence
absent +
Septum width
thin +
Series length or size
longer +
Series quantity
2 +
Series variability
equal +
Set length or size
longer +
Set quantity
2 +
Set variability
equal +
Shrub architecture
unarmed +
Shrub growth form
not clonal +
Shrub habitat
aquatic +, amphibious +  and terrestrial +
Slit dehiscence or orientation
longitudinal +
Spike architecture
leafy +
Stamen size
subequal +
Stamen size or quantity
2 times as many as sepals +
Stem architecture
branched +  and unbranched +
Stem growth form or orientation
prostrate +  and decumbent +
Stem orientation
erect +
Stem pubescence
subglabrous +
Stem shape
terete +
Stem some measurement
20 cm200 mm <br />0.2 m <br /> (130 cm1,300 mm <br />1.3 m <br />) +
Stigma orientation
spreading +
Stigma quantity
1 +
Stigma shape
4-lobed +
Stigma shape or vernation
revolute +
Stipule architecture
subsessile +  and petiolate +
Stipule duration
caducous +
Stipule position
intrapetiolar +
Stipule presence
absent +
Stipule size
small +
Style coloration
flushed pink +  and white +
Style orientation
erect +  and deflexed +
Style pubescence
villous +
Style quantity
2;3 +
Style some measurement
0.8 cm8 mm <br />0.008 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
Submarginal vein prominence
prominent +
Subshrub architecture
unarmed +
Subshrub growth form
not clonal +
Subshrub habitat
aquatic +, amphibious +  and terrestrial +
Surface architecture or coloration or relief
reticulate +
Surface architecture or pubescence or relief
smooth +
Surface coloration
white +
Surface condition or texture
dry +
Surface pubescence
glabrous +
Surface reflectance
shiny +
Surface relief
dry-papillose +
Synonyms
Chamaenerion angustifolium var. spectabile +, C. spicatum +, Epilobium angustifolium var. albiflorum +, E. angustifolium var. album +, E. angustifolium var. pygmaeum +, E. spicatum +  and E. spicatum var. leucanthum +
Taxon family
Onagraceae +
Taxon name
Chamaenerion angustifolium subsp. angustifolium +
Taxon parent
Chamaenerion angustifolium +
Taxon rank
subspecies +
Tetrad arrangement
singly +
Tetrad dehiscence
3(-5)-aperturate +
Upper petal length or size
longer +
Vein pubescence
glabrous +
Viscin thread dehiscence or orientation
longitudinal +
Viscin thread fusion
united +
Volume
Volume 10 +