Difference between revisions of "Ranunculus austro-oreganus"

L. D. Benson

Amer. Midl. Naturalist 52: 341. 1954.

Conservation concernEndemic
Treatment appears in FNA Volume 3.
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--><span class="statement" id="st-d0_s0" data-properties="stem orientation;stem orientation;stem architecture;stem pubescence;base architecture"><b>Stems </b>erect or ascending, never rooting nodally, crisped-pilose, base not bulbous.</span> <span class="statement" id="st-d0_s1" data-properties="root architecture"><b>Roots </b>never tuberous.</span> <span class="statement" id="st-d0_s2" data-properties="basal leaf-blade shape;basal leaf-blade shape;basal leaf-blade shape;basal leaf-blade shape;basal leaf-blade length;basal leaf-blade width;segment shape;ultimate segment shape;margin shape;margin shape;apex shape;apex shape"><b>Basal </b>leaf-blades broadly rhombic to semicircular in outline, 3-parted, 2.8-4.3 × 3-5.5 cm, segments 3-lobed, ultimate segments lanceolate, margins entire or toothed, apex narrowly acute or acuminate.</span> <span class="statement" id="st-d0_s3" data-properties="receptacle pubescence"><b>Flowers:</b> receptacle glabrous;</span> <span class="statement" id="st-d0_s4" data-properties="sepal orientation;sepal some measurement;sepal length;sepal width;sepal pubescence">sepals reflexed 1 mm above base, 4-6 × 1.5-3 mm, densely pilose;</span> <span class="statement" id="st-d0_s5" data-properties="petal quantity;petal coloration;petal coloration;petal length;petal width">petals 5, abaxially red, adaxially yellow, 10-12 × 4-6 mm.</span> <span class="statement" id="st-d0_s6" data-properties="head shape;head length;head width"><b>Heads </b>of achenes hemispheric, 4-7 × 7-10 mm;</span> <span class="statement" id="st-d0_s7" data-properties="achene length;achene width;achene pubescence;margin width;rib size or width">achenes 3.4-4.2 × 2.8-3.2 mm, sometimes basally pilose, margin forming narrow rib 0.1-0.2 mm wide;</span> <span class="statement" id="st-d0_s8" data-properties="beak duration;beak shape;beak course;beak course;beak some measurement">beak persistent, lance-subulate, straight or somewhat curved distally, 1.6-2.6 mm.</span><!--
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--><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>erect or ascending, never rooting nodally, crisped-pilose, base not bulbous. <b>Roots</b> never tuberous. <b>Basal</b> leaf blades broadly rhombic to semicircular in outline, 3-parted, 2.8-4.3 × 3-5.5 cm, segments 3-lobed, ultimate segments lanceolate, margins entire or toothed, apex narrowly acute or acuminate. <b>Flowers</b>: receptacle glabrous; sepals reflexed 1 mm above base, 4-6 × 1.5-3 mm, densely pilose; petals 5, abaxially red, adaxially yellow, 10-12 × 4-6 mm. <b>Heads</b> of achenes hemispheric, 4-7 × 7-10 mm; achenes 3.4-4.2 × 2.8-3.2 mm, sometimes basally pilose, margin forming narrow rib 0.1-0.2 mm wide; beak persistent, lance-subulate, straight or somewhat curved distally, 1.6-2.6 mm.</span><!--
  
 
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|publication year=1954
 
|publication year=1954
 
|special status=Conservation concern;Endemic
 
|special status=Conservation concern;Endemic
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V3/V3_471.xml
+
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V3/V3_471.xml
 
|genus=Ranunculus
 
|genus=Ranunculus
 
|subgenus=Ranunculus subg. Ranunculus
 
|subgenus=Ranunculus subg. Ranunculus
 
|section=Ranunculus sect. Ranunculus
 
|section=Ranunculus sect. Ranunculus
 
|species=Ranunculus austro-oreganus
 
|species=Ranunculus austro-oreganus
|achene length=3.4mm;4.2mm
 
|achene pubescence=pilose
 
|achene width=2.8mm;3.2mm
 
|apex shape=acuminate;acute
 
|basal leaf-blade length=2.8cm;4.3cm
 
|basal leaf-blade shape=3-parted;broadly rhombic;semicircular
 
|basal leaf-blade width=3cm;5.5cm
 
|base architecture=not bulbous
 
|beak course=curved;straight
 
|beak duration=persistent
 
|beak shape=lance-subulate
 
|beak some measurement=1.6mm;2.6mm
 
|head length=4mm;7mm
 
|head shape=hemispheric
 
|head width=7mm;10mm
 
|margin shape=toothed;entire
 
|margin width=0.1mm;0.2mm
 
|petal coloration=yellow;red
 
|petal length=10mm;12mm
 
|petal quantity=5
 
|petal width=4mm;6mm
 
|receptacle pubescence=glabrous
 
|rib size or width=narrow
 
|root architecture=tuberous
 
|segment shape=3-lobed
 
|sepal length=4mm;6mm
 
|sepal orientation=reflexed
 
|sepal pubescence=pilose
 
|sepal some measurement=1
 
|sepal width=1.5mm;3mm
 
|stem architecture=rooting
 
|stem orientation=ascending;erect
 
|stem pubescence=crisped-pilose
 
|ultimate segment shape=lanceolate
 
 
}}<!--
 
}}<!--
  
 
-->[[Category:Treatment]][[Category:Ranunculus sect. Ranunculus]]
 
-->[[Category:Treatment]][[Category:Ranunculus sect. Ranunculus]]

Revision as of 14:41, 27 July 2019

Stems erect or ascending, never rooting nodally, crisped-pilose, base not bulbous. Roots never tuberous. Basal leaf blades broadly rhombic to semicircular in outline, 3-parted, 2.8-4.3 × 3-5.5 cm, segments 3-lobed, ultimate segments lanceolate, margins entire or toothed, apex narrowly acute or acuminate. Flowers: receptacle glabrous; sepals reflexed 1 mm above base, 4-6 × 1.5-3 mm, densely pilose; petals 5, abaxially red, adaxially yellow, 10-12 × 4-6 mm. Heads of achenes hemispheric, 4-7 × 7-10 mm; achenes 3.4-4.2 × 2.8-3.2 mm, sometimes basally pilose, margin forming narrow rib 0.1-0.2 mm wide; beak persistent, lance-subulate, straight or somewhat curved distally, 1.6-2.6 mm.


Phenology: Flowering spring (May).
Habitat: Grassy hillsides
Elevation: 500 m

Discussion

Of conservation concern.

Ranunculus austro-oreganus is doubtfully distinct from R. occidentalis var. howellii. L. D. Benson (1954) described the stem as bulbous-based and similar to that of R. bulbosus, but a differentiated base is not evident in material I have seen (some of which was cited by Benson).

Selected References

None.

Lower Taxa

None.