familyFumariaceae
genusDicentra
speciesDicentra uniflora

Dicentra uniflora

Kellogg

Proc. Calif. Acad. Sci. 4: 141. 1871.

Kingsley R. Stern
Common names: Steer's-head
EndemicIllustrated
Treatment appears in FNA Volume 3.
Please click on the illustration for a higher resolution version.
Illustrator: John Myers

Copyright: Flora of North America Association

Plants perennial, scapose, from clusters of club to spindle-shaped tubers, small bulblets often present at proximal ends of tubers. Leaves 4-7 (-10) × (1-) 3-4 cm; petiole 2-5 (-8) cm; blade with 3-4 orders of leaflets and lobes; surfaces pubescent near base, rarely sparsely pubescent throughout; ultimate lobes variable in shape, often oblong to spoon-shaped, (2-) 6-12 (-18) × 1.5-6 mm, minutely apiculate, occasionally retuse. Inflorescences 1-flowered, barely exceeding to shorter than leaves; bracts 1 (rarely 2) per scape, lanceolate, 4-6 × 2-3 mm. Flowers nodding to erect; pedicels 2-7 mm; petals pink to white, suffused light-brown; outer petals (7-) 12-16 (-20) mm, reflexed portion (4-) 6-8 (-10) mm; inner petals purple-tipped, (11-) 13-15 (-17) mm, blade triangular to lanceolate or spoon-shaped, 4-8 mm, claw linear-oblong, 4-6 mm, crest absent; filaments of each bundle usually distinct above base, occasionally connate just below anthers, median filament forming loop with slight indentation near base; nectariferous tissue borne along basal part of loop; style 2-5 mm; stigma shallowly 2-lobed, much reduced, slightly wider than style. Capsules ovoid, attenuate to style, 9-14 × 5-9 mm. Seeds reniform, ca. 1.5 mm diam., finely and obscurely reticulate, elaiosome absent. 2n = 16.


Phenology: Flowering very early spring–late summer.
Habitat: Rocky slopes and hillsides in gravelly soils, often flowering near edges of melting snowbanks
Elevation: 1500-2200(-3300) m

Distribution

V3 1053-distribution-map.gif

B.C., Calif., Idaho, Mont., Nev., Oreg., Utah, Wash., Wyo.

Discussion

Selected References

None.

Lower Taxa

None.

"thin" is not a number."slightly wider" is not a number.

... more about "Dicentra uniflora"
RDF feed
2n chromosome quantity
16 +
Abaxial median crest architecture
hollow +
Abaxial median crest relief
wrinkled +
Abaxial median crest texture
membranous +
Anther arrangement
connivent +
Apical horn quantity
2 (8) +
Author
Kingsley R. Stern +
Authority
Kellogg +
Base shape
swollen +
Blade shape
triangular;lanceolate or spoon-shaped +
Blade some measurement
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Bract length
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Bract presence
absent +
Bract quantity
1 +
Bract shape
lanceolate +
Bract width
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Bulblet size
small +
Bundle filament fusion
connate +  and distinct +
Bundle quantity
2 +
Capsule architecture
2-valved +
Capsule dehiscence
dehiscent +  and indehiscent +
Capsule length
0.9 cm9 mm <br />0.009 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
Capsule shape
attenuate +  and ovoid +
Capsule width
0.5 cm5 mm <br />0.005 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Claw shape
linear-oblong +
Claw some measurement
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Common name
Steer's-head +
Corolla shape
cordate +  and oblong +
Crest presence
absent +
Distribution
B.C. +, Calif. +, Idaho +, Mont. +, Nev. +, Oreg. +, Utah +, Wash. +  and Wyo. +
Elaiosome presence
absent +
Elevation
1500-2200(-3300) m +
Flower architecture or shape
symmetric +
Flower orientation
nodding +  and erect +
Flower quantity
1 +
Flower shape
each +  and plane +
Fruit architecture
capsular +
Fruit arrangement or dehiscence
valvate +
Fruit dehiscence
dehiscent +  and indehiscent +
Habitat
Rocky slopes and hillsides in gravelly soils, often flowering near edges of melting snowbanks +
Horn quantity
2 (?) +
Illustration
Present +
Illustration copyright
Flora of North America Association +
Illustrator
John Myers +
Indentation prominence
slight +
Inflorescence architecture
1-flowered +
Inflorescence arrangement
corymbose +, racemose +  and paniculate +
Inflorescence position
terminal +, leaf-opposed +, extra-axillary +  and axillary +
Inner petal architecture
purple-tipped +
Inner petal atypical some measurement
1.5 cm15 mm <br />0.015 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
Inner petal fusion
connate +
Inner petal shape
clawed +
Inner petal some measurement
1.3 cm13 mm <br />0.013 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Inner petal variability
alike +
Lateral anther architecture or structure in adjective form
1-locular +
Lateral papilla quantity
2 +
Leaf architecture
compound +
Leaf arrangement
alternate +
Leaf atypical length
7 cm70 mm <br />0.07 m <br /> (10 cm100 mm <br />0.1 m <br />) +
Leaf atypical width
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Leaf height or length or size
shorter +
Leaf length
4 cm40 mm <br />0.04 m <br /> (7 cm70 mm <br />0.07 m <br />) +
Leaf position
cauline +  and basal +
Leaf width
3 cm30 mm <br />0.03 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Lobe quantity
2 (?) +
Margin shape
serrate +, crenate +  and entire +
Median anther architecture or structure in adjective form
2-locular +
Number of lower taxa
0 +
Order architecture
odd-pinnate +
Order quantity
3 (4) +
Outer petal arrangement
adjacent +
Outer petal atypical some measurement
1.6 cm16 mm <br />0.016 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Outer petal quantity
3 +, both +  and 1 +
Outer petal shape
keeled +, spurred +  and swollen +
Outer petal some measurement
1.2 cm12 mm <br />0.012 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
Outer petal variability
dissimilar +  and alike +
Ovary architecture or structure in adjective form
1-locular +
Ovary shape
obovoid;narrowly cylindric +
Pedicel presence
absent +
Pedicel some measurement
0.2 cm2 mm <br />0.002 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Peduncle presence
absent +
Petal coloration
suffused light-brown;pink;white +
Petal fusion
connate +  and coherent +
Petal quantity
4 +
Petal texture
not spongy +
Petiole atypical some measurement
5 cm50 mm <br />0.05 m <br /> (8 cm80 mm <br />0.08 m <br />) +
Petiole some measurement
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Phenology
Flowering very early spring–late summer. +
Pistil architecture
2-carpellate +
Pistil quantity
1 +
Placenta arrangement
parietal +
Plane orientation
perpendicular +
Plane quantity
2 +
Portion atypical some measurement
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Portion orientation
reflexed +
Portion some measurement
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Publication title
Proc. Calif. Acad. Sci. +
Publication year
1871 +
Reference
None +
Sap coloration
clear +
Seed architecture or coloration or relief
reticulate +
Seed diameter
1.5 +
Seed quantity
few;many +
Seed shape
reniform +
Seed size
small +
Sepal duration
caducous +
Sepal quantity
2 +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V3/V3 1053.xml +
Special status
Endemic +  and Illustrated +
Stamen quantity
6 +
Stem architecture
hollow +, branching +  and simple +
Stem growth form
climbing +  and prostrate +
Stem orientation
erect +
Stigma duration
persistent +
Stigma quantity
1 +
Stigma shape
2-lobed +
Stigma size
reduced +
Stigmatic surface shape
papillar +
Style shape
thread-like +
Style some measurement
0.2 cm2 mm <br />0.002 m <br /> (?) +  and 0.5 cm5 mm <br />0.005 m <br /> (?) +
Style texture
rigid +
Surface pubescence
pubescent +
Synonyms
Bikukulla +
Taxon family
Fumariaceae +
Taxon name
Dicentra uniflora +
Taxon parent
Dicentra +
Taxon rank
species +
Tuber shape
club;spindle-shaped +
Ultimate lobe architecture or shape
apiculate +
Ultimate lobe atypical length
1.2 cm12 mm <br />0.012 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
Ultimate lobe length
0.6 cm6 mm <br />0.006 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Ultimate lobe shape
retuse +, oblong +  and spoon-shaped +
Ultimate lobe width
0.15 cm1.5 mm <br />0.0015 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Volume
Volume 3 +
Whole organism architecture
scapose +
Whole organism duration
perennial +
Whole organism growth form
plant +
Whorl quantity
2 +
X chromosome quantity
8 +