familyRosaceae
subfamilyRosaceae subfam. Dryadoideae
tribeRosaceae tribe Dryadeae
genusDryas
speciesDryas ajanensis

Dryas ajanensis

Juzepczuk

Izv. Glavn. Bot. Sada S.S.S.R. 28: 318. 1929.

Joshua C. Springer, Bruce D. Parfitt†
Illustrated
Treatment appears in FNA Volume 9. Treatment on page 329. Mentioned on page 328.

Distribution

V9 539-distribution-map.jpg

N.W.T., Yukon, Alaska, e Asia (Russian Far East)

Discussion

Subspecies 3 (1 in the flora).

Selected References

None.

Lower Taxa

"thin" is not a number.

... more about "Dryas ajanensis"
RDF feed
Abaxial surface pubescence
woolly +  and tomentose +
Achene arrangement
aggregated +
Achene quantity
20 (40) +
Adaxial surface pubescence
hairy +, tomentose +  and glabrous +
Androecium position
perigynous +
Anther dehiscence
dehiscent +
Author
Joshua C. Springer +  and Bruce D. Parfitt† +
Authority
Juzepczuk +
Bark coloration
blackish +, reddish +  and brown +
Bark height or length or size
short +
Basal leaf architecture
compound +  and simple +
Basal leaf arrangement
opposite +  and alternate +
Basal leaflet atypical quantity
1 (2) +
Basal leaflet quantity
1 +
Blade architecture or arrangement or shape or vernation
plicate +
Blade atypical some measurement
3.9 cm39 mm <br />0.039 m <br /> (4.6 cm46 mm <br />0.046 m <br />) +
Blade relief
smooth +  and rugose +
Blade shape
ovate +, oval +, obovate +, oblongelliptic +, oblong +, linear +, lanceolate +  and elliptic +
Blade some measurement
0.2 cm2 mm <br />0.002 m <br /> (3.9 cm39 mm <br />0.039 m <br />) +
Blade texture
coriaceous +
Bract presence
absent +
Bracteole presence
absent +
Branch architecture
stoloniferous +
Branch height or length or size
short +
Branch orientation
horizontal +
Branch pubescence
glabrous +
Carpel architecture
sessile +
Carpel fusion
free +  and distinct +
Carpel quantity
60 (150) +
Caudex length or size
long +
Caudex texture
woody +
Distribution
N.W.T. +, Yukon +, Alaska +  and e Asia (Russian Far East) +
Drupe arrangement
not +  and aggregated +
Drupelet arrangement
aggregated +
Epicalyx bractlet presence
absent +
Exterior pubescence
stipitate-glandular +  and villous +
Flower architecture or arrangement or growth form
solitary +
Flower diameter
1.3 cm13 mm <br />0.013 m <br /> (2.9 cm29 mm <br />0.029 m <br />) +
Flower reproduction
unisexual +  and bisexual +
Follicle arrangement
not +  and aggregated +
Fruit architecture or pubescence or relief
smooth +
Fruit shape
linear +  and lanceolate +
Fruit some measurement
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
Fruits achene arrangement
aggregated +
Glomerule arrangement
fascicles +
Hair coloration
white +
Hair height or length or size
short +
Hair quantity
many +
Hypanthium duration
persistent +
Hypanthium shape
saucer--shaped +
Hypanthium some measurement
0.3 cm3 mm <br />0.003 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Illustration copyright
Flora of North America Association +
Illustrator
Marjorie C. Leggitt +
Inflorescence position
axillary +
Inflorescence position or structure subtype
terminal +
Integument architecture
crassinucellate +
Integument quantity
2 +
Leaf architecture
simple +
Leaf arrangement
alternate +
Leaf duration
persistent +
Leaf position
cauline +
Long-shoot presence
absent +
Margin architecture or shape
entire +, serrate +  and dentate +
Margin prominence or shape
flat +
Margin shape
crenate +  and 1-2-toothed +
Margin shape or vernation
revolute +
Nectar disc presence
absent +
Number of lower taxa
1 +
Nutlet arrangement
aggregated +
Ovary position
inferior +  and superior +
Ovule arrangement
clustered +, biseriate +  and superposed +
Ovule atypical quantity
2 (5) +
Ovule position
basal +
Ovule quantity
1 +
Pedicel presence
absent +
Perianth position
perigynous +
Petal atypical quantity
10 (?) +  and 12 (?) +
Petal coloration
yellow +, cream +  and white +
Petal duration
persistent +  and deciduous +
Petal fusion
free +  and distinct +
Petal quantity
8 +  and 10 +
Petal shape
ovate;obovate oblanceolate or ovoid +
Petiole presence
absent +
Pistil atypical quantity
250 (450) +
Pistil fusion
adnate +, free +, connate +  and distinct +
Pistil quantity
1;250 +
Publication title
Izv. Glavn. Bot. Sada S.S.S.R. +
Publication year
1929 +
Reference
None +
Seed architecture
not arillate +
Seed atypical quantity
2 (12) +
Seed quantity
2;1 +
Sepal atypical quantity
5 (10) +
Sepal duration
persistent +
Sepal fusion
free +  and distinct +
Sepal orientation
erect-ascending +, ascending +  and spreading +
Sepal quantity
8;10 +
Sepal shape
linear-lanceolate +  and lanceolate elliptic or ovate +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V9/V9 539.xml +
Special status
Illustrated +
Stamen atypical quantity
130 (220) +
Stamen fusion
free +  and distinct +
Stamen height or length or size
shorter +
Stamen quantity
50;130 +
Stem architecture
rooting +  and branched +
Stigma architecture or shape
capitate +
Stigma position
lateral +
Stipule architecture or shape
pinnate +
Stipule duration
persistent +
Stipule fusion
adnate +  and free +
Stipule presence
absent +
Stipule shape
lanceolate +
Style duration
persistent +
Style fusion
distinct +
Style position
basal +, lateral +, subterminal +  and terminal +
Style position or structure subtype
terminal +
Style shape
elongate +
Taxon family
Rosaceae +
Taxon name
Dryas ajanensis +
Taxon parent
Dryas +
Taxon rank
species +
Torus development
developed +
Torus presence
absent +
Torus prominence
inconspicuous +
Torus shape
hemispheric +
Volume
Volume 9 +
Whole organism architecture
scapose +
Whole organism arrangement or pubescence
tufted +
Whole organism growth form
shrub +  and matted +
Whole organism some measurement
0.1dm (2.3dm) +
X chromosome quantity
9 +