familyCyperaceae
genusCarex
sectionCarex sect. Limosae
speciesCarex rariflora

Carex rariflora

(Wahlenberg) Smith in J. E. Smith and J. Sowerby

in J. E. Smith and J. Sowerby, Engl. Bot., plate 2516. 1813.

Peter W. Ball
Common names: Carex rariflore
Illustrated
Basionym: Carex limosa var. rariflora Wahlenberg Kongl. Vetensk. Acad. Nya Handl. 24: 162. 1803
Synonyms: Carex rariflora var. pluriflora (Hultén) T. V. Egorova
Treatment appears in FNA Volume 23. Treatment on page 417. Mentioned on page 382, 418.
Please click on the illustration for a higher resolution version.
Illustrator: Susan A. Reznicek

Copyright: Flora of North America Association

Culms phyllopodic, with dead leaf remains at base, 5–35 cm. Leaf-blades 1–2.5 mm wide, margins sometimes involute, scabrid at tip. Inflorescences: proximal bracts 0.5-2 cm, much shorter than inflorescences; lateral spikes 6–15 × 3.5–5 mm, with 2–10 perigynia; terminal spikes 6–20 × 1–2.5 mm. Pistillate scales circular-ovate, 3–4.8 × 2.2–3.4 mm, long as and wider than perigynia, apex obtuse, sometimes mucronate. Staminate scales oblanceolate to obovate, 3.2–4.8 × 1.5–2 mm, apex acute to obtuse. Anthers 2–2.5 mm. Perigynia 2.5–4.5 × 1.6–2 mm, apex rounded; beak absent. 2n = 52.


Phenology: Fruiting summer.
Habitat: Open bogs, meadows, seepage slopes, heath
Elevation: 0–500 m

Distribution

V23 760-distribution-map.jpg

Greenland, St. Pierre and Miquelon, Man., Nfld. and Labr., N.W.T., Nunavut, Ont., Que., Yukon, Alaska, Maine, subarctic Eurasia

Discussion

Selected References

None.

Lower Taxa

None.

"shortened" is not a number.

... more about "Carex rariflora"
RDF feed
2n chromosome quantity
52 +
Achene shape
trigonous +
Anther fixation
basifixed +
Anther some measurement
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Apex architecture
beakless +
Apex relief
papillose +
Apex shape
rounded;acute;obtuse +
Author
Peter W. Ball +
Authority
(Wahlenberg) Smith in J. E. Smith and J. Sowerby +
Basal sheath texture
fibrous +
Base shape
rounded +  and tapering +
Basionyms
Carex limosa var. rariflora +
Beak presence
absent +
Beak some measurement
0 cm0 mm <br />0 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
Blade presence
absent +
Blade prominence or shape
flat +
Blade shape
v--shaped +
Blade width
0 cm0 mm <br />0 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Bract architecture
glumaceous +  and foliaceous +
Bract architecture or shape
leaflike +
Bract arrangement
2-ranked +  and arranged +
Bract orientation
ascending +  and appressed +
Bract quantity
1;many +
Bract shape
scale-like +  and leaflike +
Branch atypical quantity
3 (4) +
Branch quantity
2;3 +
Bristle atypical quantity
6;30 +
Bristle quantity
3;6 +
Cauline leaf architecture or shape
folded +
Cauline leaf arrangement
parallel +  and divergent +
Cauline leaf arrangement or course or shape
linear +
Cauline leaf orientation
Ascending (?) +
Cauline leaf prominence or shape
flat +
Cauline leaf shape
terete +, rolled +  and plicate +
Common name
Carex rariflore +
Cross-section pubescence
glabrous +
Cross-section shape or vernation
involute +
Culm architecture
phyllopodic +
Culm coloration
purple-brown +  and red +
Culm shape
round +  and trigonous +
Culm some measurement
5 cm50 mm <br />0.05 m <br /> (35 cm350 mm <br />0.35 m <br />) +
Distal scale architecture
empty +
Distribution
Greenland +, St. Pierre and Miquelon +, Man. +, Nfld. and Labr. +, N.W.T. +, Nunavut +, Ont. +, Que. +, Yukon +, Alaska +, Maine +  and subarctic Eurasia +
Elevation
0–500 m +
Embryo position
basal +
Endosperm quantity
abundant +
Flower architecture
open +, pistillate +  and staminate +
Flower position
hypogynous +  and subtending +
Flower quantity
single +
Flower reproduction
unisexual +
Fruits achene shape
biconvex +  and trigonous +
Habitat
Open bogs, meadows, seepage slopes, heath +
Illustration
Present +
Illustration copyright
Flora of North America Association +
Illustrator
Susan A. Reznicek +
Inflorescence arrangement
racemose +
Inflorescence position or structure subtype
terminal +
Inflorescences panicle architecture
pseudoumbel +
Inflorescences panicle development
modified +
Lateral spike architecture
prophyllate +, pedunculate +  and pistillate +
Lateral spike length
0.6 cm6 mm <br />0.006 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Lateral spike reproduction
gynecandrous +  and androgynous +
Lateral spike width
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Leaf-blade width
1mm;2.5mm +
Leaf arrangement
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
Leaf life cycle
dead +
Leaf position
basal +  and cauline +
Ligule presence
absent +
Locule quantity
1 +
Margin fusion
fused +
Margin pubescence or relief
scabrid +
Margin shape or vernation
involute +
Midvein fusion
distinct +
Mouth architecture or shape
emarginate +  and entire +
Number of lower taxa
0 +
Panicle arrangement
arranged +
Perianth life cycle
falling +
Perianth presence
absent +
Perianth quantity
with (1-)3-6(-30) bristles and/or scales +
Pericarp width
thin +
Perigynium architecture
sessile +, stipitate +, 3-7-veined +, veinless +  and (3-)5-7-veined +
Perigynium length
0.25 cm2.5 mm <br />0.0025 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
Perigynium orientation
ascending +
Perigynium quantity
2 (10) +
Perigynium shape
Rounded-trigonous (Ovate) +
Perigynium width
0.16 cm1.6 mm <br />0.0016 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Phenology
Fruiting summer. +
Pistil architecture
2-3(-4)-carpellate +
Pistil fusion
fused +
Pistil quantity
1 +
Portion prominence
protruding +
Prophyll architecture
pistillate +
Prophyll atypical quantity
0 (3) +
Prophyll position
subtending +
Prophyll quantity
3 (?) +  and 1 (?) +
Proximal bract architecture
sheathless +
Proximal bract height or length or size
much shorter +
Proximal bract some measurement
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Proximal scale architecture
pistillate +
Publication title
in J. E. Smith and J. Sowerby, Engl. Bot., plate +
Publication year
1813 +
Raceme arrangement
arranged +
Reference
None +
Root derivation
adventitious +
Root texture
fibrous +
Scale architecture
staminate +  and pistillate +
Scale atypical quantity
6 (30) +
Scale length
3.2mm (4.8mm) +
Scale length or size
long +
Scale position
basal +  and proximal +
Scale quantity
1;0;1 +
Scale reproduction
fertile +
Scale shape
oblanceolate;obovate +
Scale width
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Seed quantity
1 +
Sheath front coloration
Streaked with red or streaked with pale-brown (Spotted) +
Sheath front texture
membranous +
Sheath shape
cylindric +
Sheath some measurement
0 cm0 mm <br />0 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V23/V23 760.xml +
Special status
Illustrated +
Spike arrangement
arranged +
Spike quantity
2;5 +
Spikelet architecture
1-flowered +
Stamen atypical quantity
1 (3) +
Stamen fusion
distinct +
Stamen quantity
1 +  and 3 +
Stem architecture
septate +, hollow +  and solid +
Stem shape
compressed +, terete +  and trigonous +
Stigma quantity
3 +
Stigma relief
papillate +
Style architecture or shape
undivided +
Style arrangement or course or shape
linear +
Style duration
persistent +  and deciduous +
Style shape
2-3(-4)-fid +
Synonyms
Carex rariflora var. pluriflora +
Taxon family
Cyperaceae +
Taxon name
Carex rariflora +
Taxon parent
Carex sect. Limosae +
Taxon rank
species +
Terminal spike architecture
staminate +
Terminal spike length
6mm;20mm +
Terminal spike reproduction
gynecandrous +
Terminal spike width
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Testa fusion
free +
Testa width
thin +
Tomentum coloration
yellow +
Tomentum density
dense +
Volume
Volume 23 +
Whole organism architecture
short-rhizomatous +
Whole organism duration
perennial +
Whole organism growth form
plant +  and cespitose +
X chromosome quantity
10 +