familyRanunculaceae
genusRanunculus
subgenusRanunculus subg. Ranunculus
sectionRanunculus sect. Ranunculus
speciesRanunculus canus
varietyRanunculus canus var. ludovicianus

Ranunculus canus var. ludovicianus

(Greene) L. D. Benson

Bull. Torrey Bot. Club 68: 171. 1941.

Alan T. Whittemore
Endemic
Basionym: Ranunculus ludovicianus Greene Bull. Calif. Acad. Sci. 2: 58. 1886
Synonyms: Ranunculus californicus var. ludovicianus (Greene) K. C. Davis
Treatment appears in FNA Volume 3.
Revision as of 07:24, 30 July 2020 by imported>Volume Importer
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Leaf-blades: ultimate segments lanceolate to oblong-lanceolate, margins entire or toothed, apex acute or rounded-acute. Flowers: petals 13-17.


Phenology: Flowering spring–summer (Mar–Aug).
Habitat: Meadows
Elevation: 1000-2300 m

Distribution

V3 136-distribution-map.gif

Calif.

Discussion

Ranunculus canus var. ludovicianus is endemic to the Transverse Ranges of California. Pending further study, I am reluctantly following L. D. Benson's (1948) placement of this taxon. The plants have the floral characters of R. californicus and have often been included in that species. Indeed, forms of R. californicus from the foothills west of the San Joaquin Valley may also have large achenes with deltate beaks. Those plants differ from R. canus var. ludovicianus only in their ovate leaf segments. Further study of the group is much needed.

Selected References

None.

Lower Taxa

None.

"high" is not a number.

... more about "Ranunculus canus var. ludovicianus"
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Achene body architecture or shape
discoid +
Achene body length
not prolonged +
Achene body shape
flattened +
Achene body width or width
3-15 times as wide as thick +
Achene length
0.34 cm3.4 mm <br />0.0034 m <br /> (0.44 cm4.4 mm <br />0.0044 m <br />) +
Achene pubescence
hispid +  and glabrous +
Achene width
2.4mm;3.6mm +
Anther dehiscence
dehiscing +
Apex shape
rounded-acute +  and acute +
Author
Alan T. Whittemore +
Authority
(Greene) L. D. Benson +
Basal leaf-blade architecture
foliolate +
Basal leaf-blade length
3.3 cm33 mm <br />0.033 m <br /> (9.5 cm95 mm <br />0.095 m <br />) +
Basal leaf-blade shape
3-parted (Ovate) +
Basal leaf-blade width
3.5 cm35 mm <br />0.035 m <br /> (9.4 cm94 mm <br />0.094 m <br />) +
Basal leaf architecture
compound +
Basal leaf shape
parted +
Base architecture
not bulbous +
Base shape
cuneate +, truncate +  and cordate +
Basionyms
Ranunculus ludovicianus +
Beak course
curved +
Beak duration
persistent +
Beak height or length or size
much shorter +
Beak position or structure subtype
terminal +
Beak presence
absent +
Beak shape
lance-deltate +  and deltate +
Beak some measurement
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
Bract architecture or shape
leaflike +
Bract presence
absent +
Bract size
large +  and small +
Bracteole architecture
sepaloid +
Bracteole presence
absent +
Capsule arrangement
aggregated +
Capsule shape
globose;cylindric +
Caudex architecture
tuberous +
Cauline leaf architecture
compound +
Cauline leaf arrangement
alternate +
Cauline leaf shape
parted +
Cyme architecture
1-50-flowered +
Cyme some measurement
0 cm0 mm <br />0 m <br /> (25 cm250 mm <br />0.25 m <br />) +
Distal leaf architecture
sessile +
Distribution
Calif. +
Elevation
1000-2300 m +
Embryo size
small +
Endosperm quantity
abundant +
Filament shape
filiform +
Flower architecture
pedicellate +
Flower architecture or arrangement or growth form
solitary +
Flower architecture or shape
symmetric +
Flower prominence
showy +  and inconspicuous +
Flower reproduction
bisexual +
Fruit atypical quantity
5 (6) +
Fruit quantity
3;5 +
Fruits achene architecture
sessile +  and aggregate +
Fruits achene architecture or structure in adjective form
1-locular +
Fruits achene shape
cylindric;obovoid;cylindric;obovoid;globose;lenticular;discoid +
Habitat
Meadows +
Head length
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Head shape
hemispheric;globose +
Head width
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Illustration copyright
Flora of North America Association +
Illustrator
John Myers +
Inflorescence position
axillary +  and terminal +
Leaf-blade architecture
compound +
Leaf-blade architecture or shape
undivided +
Leaf-blade shape
reniform +  and linear +
Leaf architecture
petiolate +
Leaf arrangement
whorled +, opposite +  and alternate +
Leaf position
cauline +  and basal +
Leaf shape
parted +  and lobed +
Leaflet shape
1-3×-lobed +
Margin architecture
palmate +  and pinnate +
Margin architecture or shape
entire +
Margin fusion
free +
Margin position
low +
Margin shape
toothed;entire +
Margin width
0.1mm;0.2mm +
Nectary presence
absent +
Nectary scale fixation
attached +
Nectary scale fusion
free +
Nectary scale pubescence
glabrous +
Number of lower taxa
0 +
Ovule quantity
1 +
Perianth position
hypogynous +
Petal atypical quantity
22 (150) +
Petal coloration
yellow +
Petal development
developed +
Petal fusion
distinct +
Petal length
6mm;12mm +
Petal presence
absent +
Petal prominence
conspicuous +
Petal quantity
13;17 +
Petal shape
linear +  and orbiculate +
Petal size
reduced +
Petal some measurement
0.1 cm1 mm <br />0.001 m <br /> (2.6 cm26 mm <br />0.026 m <br />) +
Petal width
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Petiole architecture or shape
sheathing +
Petiole presence
absent +
Phenology
Flowering spring–summer (Mar–Aug). +
Pistil architecture
simple +
Pistil quantity
4 +  and 250 +
Publication title
Bull. Torrey Bot. Club +
Publication year
1941 +
Receptacle pubescence
glabrous +
Reference
None +
Rhizome architecture
tuberous +
Rib size or width
narrow +
Ridge size or width
narrow +
Root architecture
tuberous +
Root position
nodal +  and basal +
Seed architecture
not arillate +  and stalked +
Seed quantity
1;many +
Segment shape
1-3×-lobed +
Sepal architecture
petaloid +
Sepal architecture or shape
spurred +
Sepal arrangement
imbricate +
Sepal atypical quantity
6 (20) +
Sepal coloration
white;yellow;white;yellow;purple;sometimes;green +
Sepal duration
deciduous +
Sepal fusion
distinct +
Sepal length
? (?) +
Sepal orientation
reflexed +
Sepal pubescence
hirsute +
Sepal quantity
5 +
Sepal shape
oblong +  and elliptic ovate or lanceolate +
Sepal some measurement
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Sepal width
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Side architecture
veined +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V3/V3 136.xml +
Special status
Endemic +
Stamen fusion
distinct +
Stamen quantity
(5-)10-many +
Staminode presence
absent +
Stem-base architecture
bulbous +
Stem architecture
rooting +
Stem orientation
erect +  and decumbent +
Stem pubescence
glabrous +, pilose +  and hirsute +
Stipule presence
absent +
Stolon architecture
tuberous +
Style duration
persistent +
Style presence
absent +
Synonyms
Ranunculus californicus var. ludovicianus +
Taxon family
Ranunculaceae +
Taxon name
Ranunculus canus var. ludovicianus +
Taxon parent
Ranunculus canus +
Taxon rank
variety +
Ultimate segment shape
Lanceolate (?) +  and Oblong-lanceolate (?) +
Volume
Volume 3 +
Wall relief
Not ornamented (?) +
Wall width
thick +
Whole organism architecture
rhizomatous +
Whole organism duration
perennial +  and annual +
Whole organism growth form
plant +
Whole organism position
low +
Whole organism pubescence
glabrous +  and hispid +
Whole organism texture
herbaceous +  and woody +
Wing height
high +
Wing size or width
narrow +
X chromosome quantity
8 +  and 7 +