familyPapaveraceae
genusArgemone
speciesArgemone arizonica

Argemone arizonica

G. B. Ownbey

Mem. Torrey Bot. Club 21: 91. 1958.

Gerald B. Ownbey
Conservation concernEndemicIllustrated
Treatment appears in FNA Volume 3.

Plants perennial. Stems 5-8 dm, diffusely branched, often decumbent, copiously long-prickly. Leaf-blades: surfaces sparingly long-prickly on veins; basal and proximal lobed nearly to midrib, lobe length often to 5 times width; distal not clasping. Inflorescences: buds ellipsoid-oblong, body 15-18 × 12-15 mm, prickly; sepal horns slender, terete, 12-15 mm, prickly at base. Flowers 7-10 cm broad; petals white; stamens 100 or more; filaments pale-yellow; pistil 3-carpellate. Capsules narrowly ellipsoid-oblong, 35-45 × 10-14 mm (including stigma and excluding prickles), closely prickly, longest prickles 8-10 mm. Seeds ca. 2 mm.


Phenology: Flowering spring; fruiting summer.
Habitat: Precipitous slopes
Elevation: 1000-2000 m

Distribution

V3 1017-distribution-map.gif

Ariz.

Discussion

Of conservation concern.

Argemone arizonica grows well in Grand Canyon National Park, especially along the Kaibab and Bright Angel trails.

Selected References

None.

Lower Taxa

None.

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

... more about "Argemone arizonica"
RDF feed
Androecium position
perigynous +
Anther architecture or structure in adjective form
2-locular +
Apex length
1/3 +
Aril presence
absent +
Author
Gerald B. Ownbey +
Authority
G. B. Ownbey +
Basal leaf arrangement
rosulate +
Blade architecture
palmate +  and subpalmate +
Blade shape
1×-lobed +, commonly shallowly +  and unlobed +
Body architecture
prickly +
Body length
1.5 cm15 mm <br />0.015 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
Body width
1.2 cm12 mm <br />0.012 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Bract architecture
foliaceous +
Bract presence
absent +
Bud shape
ellipsoid-oblong +
Capsule architecture
prickly +
Capsule dehiscence
dehiscing +
Capsule length
3.5 cm35 mm <br />0.035 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
Capsule orientation
erect +
Capsule shape
ellipsoid-oblong +
Capsule width
1 cm10 mm <br />0.01 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
Cauline leaf arrangement
alternate +
Distribution
Ariz. +
Element architecture
vascular +
Elevation
1000-2000 m +
Filament coloration
pale-yellow +
Flower architecture
sessile +, pedicellate +  and symmetric +
Flower prominence
conspicuous +
Flower width
7 cm70 mm <br />0.07 m <br /> (10 cm100 mm <br />0.1 m <br />) +
Fruit architecture
capsular +
Fruit dehiscence
transverse +, poricidal +, valvate +  and dehiscence +
Habitat
Precipitous slopes +
Horn architecture
tipped +  and hollow +
Horn orientation
erect +
Horn position
subterminal +
Illustration copyright
Flora of North America Association +
Illustrator
John Myers +
Inflorescence architecture
cymose +
Inflorescence arrangement
paniculate +  and racemose +
Inflorescence position
terminal +  and axillary +
Inflorescence position or structure subtype
terminal +
Leaf-blade architecture or fixation
not clasping +
Leaf-blade position
proximal +  and basal +
Leaf-blade position or shape
distal +
Leaf-blade shape
lobed +
Leaf architecture
sessile +
Leaf arrangement
alternate +  and opposite or whorled +
Leaf position
cauline +  and basal +
Lobe l w ratio
0-5 +
Longest prickle some measurement
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Margin architecture or shape
dentate +
Number of lower taxa
0 +
Ovary architecture
1-2-locular or +  and incompletely completely multilocular +
Ovary architecture or structure in adjective form
1-locular +
Perianth position
perigynous +
Petal coloration
white +
Petal fusion
distinct +
Petal presence
absent +
Petal quantity
6 +
Petal shape
obovate +
Petal size or quantity
2 times number of sepals +
Phenology
Flowering spring +  and fruiting summer. +
Pistil architecture
3-carpellate +
Pistil quantity
1 +
Placenta arrangement
parietal +
Placenta quantity
2 +
Publication title
Mem. Torrey Bot. Club +
Publication year
1958 +
Receptacle size
expanded +
Reference
None +
Sap coloration
white +  and orange +
Sap texture
sticky +
Seed architecture
carunculate +  and arillate +
Seed quantity
numerous +
Seed relief
pitted +
Seed shape
subglobose +
Seed size
small +
Seed some measurement
2 cm20 mm <br />0.02 m <br /> (?) +
Segment architecture
1-seeded +
Sepal architecture
list +  and count +
Sepal duration
caducous +
Sepal fusion
list +  and count +
Sepal horn architecture
prickly +
Sepal horn shape
terete +
Sepal horn size
slender +
Sepal horn some measurement
1.2 cm12 mm <br />0.012 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Sepal quantity
3 +  and 2 +
Sepal shape
obovate +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V3/V3 1017.xml +
Special status
Conservation concern +, Endemic +  and Illustrated +
Stamen quantity
100 +
Stem architecture
long-prickly +  and branched +
Stem growth form or orientation
decumbent +
Stem orientation
decumbent +, spreading +  and erect +
Stigma duration
persistent +
Stigma fixation
attached +
Stigma lobe quantity
2;many +
Stigma quantity
2;many +
Stigma shape
3-5(-7)-lobed +
Style duration
persistent +
Style fixation
attached +
Style height or length or size
short +
Style presence
absent +
Style quantity
1 +
Style some measurement
0 cm0 mm <br />0 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Surface architecture
long-prickly +
Surface coloration
mottled +
Surface pubescence
hispid +, glabrous +  and glaucous +
Taproot duration
persistent +
Taxon family
Papaveraceae +
Taxon name
Argemone arizonica +
Taxon parent
Argemone +
Taxon rank
species +
Valve arrangement
separating +
Volume
Volume 3 +
Whole organism architecture
caulescent +
Whole organism duration
perennial +
Whole organism growth form
plant +
Whole organism pubescence
glaucous +
Whole organism size
small +
Whorl quantity
3 +  and 2 +
X chromosome quantity
14 +