Ranunculus sabinei

R. Brown

J. Voy. N.-W. Passage, Bot., 264. 1824.

Endemic
Synonyms: Ranunculus pygmaeus subsp. sabinei (R. Brown) Hultén
Treatment appears in FNA Volume 3.

Stems erect or decumbent, 1-12 cm, sparsely pilose, each with 1-3 flowers. Roots slender, 0.3-0.8 mm thick. Basal leaves persistent, blades broadly obovate to transversely elliptic, 3-lobed or parted, 0.9-3 × 0.8-3.4 cm, segments undivided or again lobed, base obtuse, margins entire, apices of segments rounded to rounded-obtuse. Flowers: pedicels pilose; receptacle pilose; sepals 4-7 × 2-3 mm, abaxially pilose, hairs colorless; petals 5, 5-8 × 3-4 mm; nectary scale glabrous. Heads of achenes cylindric, 6-9 × 4 mm; achenes 1.2-1.4 × 0.8-1 mm, glabrous; beak lance-subulate, straight or curved, 0.4-0.6 mm. 2n = 64.


Phenology: Flowering summer (Jul–Aug).
Habitat: Slopes and hummocks in tundra, in sandy or gravelly soil
Elevation: 0 m

Distribution

V3 649-distribution-map.gif

Greenland, N.W.T., Yukon, Alaska.

Discussion

An alternative interpretation of this taxon is given by E. Hultén (1971) who considered it to be the hybrid Ranunculus nivalis × R. pygmaeus, and considered all specimens referable here to be hybrids or members of stabilized populations of hybrid origin.

Selected References

None.

Lower Taxa

None.
... more about "Ranunculus sabinei"
not prolonged +
asymmetrically thick-lenticular +  and compressed-globose +
1.2-2 times as wide as thick +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
0.8mm;1mm +
rounded +  and rounded-obtuse +
Alan T. Whittemore +
R. Brown +
Ranunculus sect. Marsypadenium +
curved +  and straight +
lance-subulate +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
0.9 cm9 mm <br />0.009 m <br /> (3 cm30 mm <br />0.03 m <br />) +
broadly obovate;transversely elliptic 3-lobed or parted +
0.8 cm8 mm <br />0.008 m <br /> (3.4 cm34 mm <br />0.034 m <br />) +
large +  and small +
globose;cylindric +
sometimes;sessile;nearly sessile +
1-50-flowered +
0 cm0 mm <br />0 m <br /> (25 cm250 mm <br />0.25 m <br />) +
Greenland +, N.W.T. +, Yukon +  and Alaska. +
showy +  and inconspicuous +
sessile +  and aggregate +
cylindric;obovoid;cylindric;obovoid;globose;lenticular;discoid +
Slopes and hummocks in tundra, in sandy or gravelly soil +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
cylindric +
4 cm40 mm <br />0.04 m <br /> (?) +
axillary +  and terminal +
reniform +  and linear +
compound +  and simple +
whorled +, opposite +  and alternate +
cauline +  and basal +
parted +  and lobed +
palmate +  and pinnate +
inconspicuous +
fringed;entire;crenate;entire +
distinct +
conspicuous +
linear +  and orbiculate +
reduced +
0.1 cm1 mm <br />0.001 m <br /> (2.6 cm26 mm <br />0.026 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Flowering summer (Jul–Aug). +
4 +  and 250 +
J. Voy. N.-W. Passage, Bot., +
slender +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
not arillate +  and stalked +
white;yellow;white;yellow;purple;sometimes;green +
deciduous +
distinct +
oblong +  and elliptic ovate or lanceolate +
0.1 cm1 mm <br />0.001 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
(5-)10-many +
not bulbous-based +
decumbent +  and erect +
1 cm10 mm <br />0.01 m <br /> (12 cm120 mm <br />0.12 m <br />) +
persistent +
Ranunculus pygmaeus subsp. sabinei +
Ranunculus sabinei +
Ranunculus sect. Epirotes +
species +
perennial +  and annual +
pubescent +, pilose +, sometimes +  and glabrous +
herbaceous +  and woody +