familyPolygonaceae
subfamilyPolygonaceae subfam. Polygonoideae
genusAconogonon
speciesAconogonon davisiae
varietyAconogonon davisiae var. davisiae

Aconogonon davisiae var. davisiae

Harold R. Hinds†, Craig C. Freeman
Treatment appears in FNA Volume 5. Treatment on page 600. Mentioned on page 599.

Stems pubescent, rarely glabrescent. Leaf-blades 2.1–7.5 (–9.5) × 1.1–5 cm, base truncate or, rarely, cordate, faces pubescent, rarely glabrescent. Pedicels 0.5–1.7 (–2.4) mm, glabrous. Perianths 2–4.5 mm. 2n = 20.


Phenology: Flowering Jun–Aug.
Habitat: Steep subalpine slopes, volcanic fell fields, often on talus or pumice
Elevation: 1200-3100 m

Distribution

V5 1222-distribution-map.gif

Calif., Idaho, Oreg., Wash.

Discussion

Selected References

None.

Lower Taxa

None.

"/2" is not declared as a valid unit of measurement for this property.

... more about "Aconogonon davisiae var. davisiae"
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2n chromosome quantity
20 +
Achene architecture
unwinged +
Achene architecture or shape
beaked +
Achene atypical length
0.6 cm6 mm <br />0.006 m <br /> (0.83 cm8.3 mm <br />0.0083 m <br />) +
Achene coloration
yellowish-brown +
Achene length
0.32 cm3.2 mm <br />0.0032 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Achene position
exserted +
Achene pubescence
glabrous +
Achene reflectance
shiny +
Achene reproduction
homocarpic +
Achene shape
3-gonous +
Achene width
2.1mm;5mm +
Anther coloration
pink +  and yellow +
Anther dehiscence
dehiscing +
Anther shape
ovate +  and elliptic +
Apex shape
obtuse;obtuse;acute +
Author
Harold R. Hinds† +  and Craig C. Freeman +
Authority
(W. H. Brewer ex A. Gray) Soják +
Base architecture or shape
, +  and truncate +
Base position or shape
distal +
Base shape
cordate +
Basionyms
Polygonum davisiae +
Blade architecture
simple +
Blade atypical length
7.5 cm75 mm <br />0.075 m <br /> (9.5 cm95 mm <br />0.095 m <br />) +
Blade length
2.1 cm21 mm <br />0.021 m <br /> (7.5 cm75 mm <br />0.075 m <br />) +
Blade shape
lanceolate;oblong-ovate;ovate +
Blade texture
subcoriaceous +
Blade width
1.1 cm11 mm <br />0.011 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Bract architecture
foliaceous +  and perfoliate +
Bract fusion
connate +
Bract presence
absent +
Bract quantity
2;10 +
Bract shape
scale-like +
Bracteole fusion
connate +
Branch fusion
free +
Branch location
aerial +
Caudex stem architecture or arrangement
compact +
Caudex stem orientation
just below the soil surface or and above the soil surface +  and spreading +
Caudex stem texture
woody +
Distribution
Calif. +, Idaho +, Oreg. +  and Wash. +
Elevation
1200-3100 m +
Embryo architecture or shape
folded +
Embryo course
curved +
Endosperm development
nuclear +
Endosperm pubescence or texture
mealy +
Endosperm quantity
abundant +
Face pubescence
glabrescent +  and pubescent +
Face shape
not concave +
Filament fusion
adnate +, free +  and distinct +
Filament pubescence
glabrous +
Flower quantity
1;4 +
Flower reproduction
bisexual +
Flowering-stem architecture
disarticulating +  and solid +
Flowering-stem growth form or orientation
decumbent to erect +  and prostrate +
Flowering-stem location
aerial +
Flowering-stem orientation
Arising (?) +
Flowering-stem shape
fistulose +
Fruits achene architecture
unwinged +  and winged +
Fruits achene coloration
black +, red +, brown +  and yellowish +
Fruits achene position
exserted +  and included +
Fruits achene pubescence
pubescent +  and glabrous +
Fruits achene reproduction
homocarpic +
Fruits achene shape
spheroidal +, 4-gonous +, lenticular +, biconvex +, discoid +, 3-gonous +  and 2-gonous +
Habitat
Steep subalpine slopes, volcanic fell fields, often on talus or pumice +
Illustration copyright
Flora of North America Association +
Illustrator
Yevonn Wilson-Ramsey +
Inflorescence architecture
compound +, branched +  and simple +
Inflorescence architecture or shape
capitate +
Inflorescence arrangement
cluster +
Inflorescence position
axillary +
Inflorescence position or structure subtype
terminal +
Inflorescence shape
racemelike +
Inner tepal quantity
3 +
Involucral-bract position
enclosed +
Involucre shape
tubular +
Involucre texture
nonmembranous +
Leaf-blade atypical length
7.5 cm75 mm <br />0.075 m <br /> (9.5 cm95 mm <br />0.095 m <br />) +
Leaf-blade length
2.1 cm21 mm <br />0.021 m <br /> (7.5 cm75 mm <br />0.075 m <br />) +
Leaf-blade width
1.1cm;5cm +
Leaf architecture
sessile +  and petiolate +
Leaf arrangement
alternate +
Leaf duration
deciduous +
Leaf position
cauline +
Margin architecture
awn-tipped +
Margin architecture or pubescence or shape
ciliate +
Margin architecture or shape
entire +
Margin orientation or shape
oblique +
Margin pubescence
glabrous +, finely pubescent +  and pilose +
Margin shape
undulate +
Node shape
swollen +
Number of lower taxa
0 +
Ocreum architecture
partly +  and foliaceous +
Ocreum coloration
reddish-brown +
Ocreum duration
deciduous +  and persistent +
Ocreum presence
absent +
Ocreum pubescence or texture
chartaceous +
Ocreum shape
cylindric +
Ocreum some measurement
0.3 cm3 mm <br />0.003 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Ocreum texture
coriaceous +  and membranous +
Outer tepal quantity
2 +
Outer tepal size
smaller +
Ovary architecture or structure in adjective form
1-locular +
Ovule orientation
anatropous +, , +  and orthotropous +
Ovule quantity
1 +
Pedicel architecture
articulate +
Pedicel atypical some measurement
0.17 cm1.7 mm <br />0.0017 m <br /> (0.24 cm2.4 mm <br />0.0024 m <br />) +
Pedicel presence
absent +
Pedicel pubescence
glabrous +
Pedicel size
accrescent +
Pedicel some measurement
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
Peduncle architecture
awnless +
Peduncle arrangement
cluster +
Peduncle orientation
spreading;erect +
Peduncle presence
absent +
Perianth architecture
unwinged +
Perianth coloration
greenish;pinkish white +
Perianth duration
persistent +
Perianth pubescence
glabrous +
Perianth shape
rotate +
Perianth size
nonaccrescent +
Perianth some measurement
0.2 cm2 mm <br />0.002 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
Perianth texture
fleshy +, indurate +  and membranous +
Petiole architecture
articulate +
Petiole atypical some measurement
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Petiole presence
absent +
Petiole some measurement
0.03 cm0.3 mm <br />3.0e-4 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Phenology
Flowering Jun–Aug. +
Pistil architecture
(2-)3(-4)-carpellate +
Pistil quantity
1 +
Publication title
Preslia +
Publication year
1974 +
Reference
None +
Root architecture
tuberous +
Root size
slender;stout +
Root texture
woody +
Seed quantity
1 +
Segment shape
ringlike +
Slit dehiscence or orientation
longitudinal +
Soil orientation
Spreading (Erect) +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V5/V5 1222.xml +
Special status
Endemic +
Spine orientation
recurved +
Stamen atypical quantity
1 (6) +
Stamen development
developed +
Stamen quantity
8 +
Staminode presence
absent +
Stem architecture
not scapose +
Stem architecture or function or pubescence
glandular +
Stem growth form
scandent +
Stem orientation
ascending +  and erect +
Stem pubescence
glabrescent +  and pubescent +
Stigma architecture
peltate +
Stigma architecture or shape
capitate +
Stigma quantity
1 +
Stigma shape
penicillate +, fimbriate +  and capitate +
Stipule architecture
foliaceous +
Stipule duration
deciduous +  and persistent +
Stipule presence
absent +
Stipule pubescence or texture
chartaceous +
Stipule shape
2-lobed +  and cylindric +
Stipule texture
coriaceous +  and membranous +
Style fusion
connate +  and distinct +
Style orientation
spreading;erect +
Style quantity
3 +
Surface orientation
spreading;erect +
Synonyms
Aconogonon newberryi +  and Polygonum newberryi +
Taproot architecture
solid +
Taxon family
Polygonaceae +
Taxon name
Aconogonon davisiae var. davisiae +
Taxon parent
Aconogonon davisiae +
Taxon rank
variety +
Tendril presence
absent +
Tepal architecture
petaloid +
Tepal architecture or shape
entire +
Tepal fusion
connate +
Tepal growth form
, +  and dimorphic +
Tepal length
1/4 +
Tepal quantity
5 +
Tepal shape
oblong-ovate +  and obovate +
Tepal texture
coriaceous +
Tube duration
persistent +
Tube texture
membranous +
Tubercle architecture or function or pubescence
glandular +
Tubercle coloration or relief
glandular-punctate +
Tubercle development
developing +
Tubercle prominence
raised +
Tubercle pubescence
pubescent +  and glabrous +
Volume
Volume 5 +
Whole organism architecture
homophyllous +
Whole organism atypical some measurement
42 cm420 mm <br />0.42 m <br /> (50 cm500 mm <br />0.5 m <br />) +
Whole organism duration
perennial +
Whole organism growth form
plant +
Whole organism reproduction
polycarpic +
Whole organism some measurement
12cm (42cm) +
Whorl quantity
2 +
X chromosome quantity
11 +, 10 +  and 8 +