familyPoaceae
subfamilyPoaceae subfam. Panicoideae
tribePoaceae tribe Paniceae
genusAxonopus
speciesAxonopus furcatus

Axonopus furcatus

(Flüggé) Hitchc.
Mary E. Barkworth
Common names: Big carpetgrass
Endemic
Treatment appears in FNA Volume 25. Treatment on page 566.
Please click on the illustration for a higher resolution version.
Illustrator: Karen Klitz, Linda A. Vorobik

Copyright: Utah State University

Plants stoloniferous. Culms 30-100 cm; nodes glabrous or pubescent. Sheaths compressed, glabrous or sparsely to densely pilose, hairs appressed; ligules 0.3-1 mm; blades 3-25 cm long, 2-15 mm wide, margins often with papillose-based hairs near the base, scabrous distally. Panicles terminal and axillary, with 2 (-4) divergent branches; branches 4-15 cm. Spikelets 3.5-5.5 mm long, about 1.5 mm wide, sessile or subsessile, ovoid-ellipsoid, acuminate. Upper glumes glabrous, 5-7-veined; lower lemmas 5-7-veined, glabrous or sparsely pilose over the veins; upper lemmas and paleas 2.5-3.2 mm, light yellow, obtuse. Caryopses 1.8-2.2 mm, obovate, yellow. 2n = unknown.

Distribution

Md., Del., Miss., Tex., La., Ala., N.C., S.C., Va., Ark., Ga., Okla., Fla.

Discussion

Axonopus furcatus is endemic to the southeastern United States. It grows in moist pine barrens, marshes, river banks, wet ditches, pond margins, and other such damp areas.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Axonopus furcatus"
RDF feed
Abaxial ligule presence
absent +
Abaxial ligule quantity
common +
Adaxial cell presence
absent +
Adaxial cell shape
bulliform +
Adaxial ligule architecture or pubescence or shape
ciliate +
Adaxial ligule presence
absent +
Adaxial ligule texture
membranous +
Anther quantity
3 +
Apex shape
acute +  and obtuse +
Arm cell presence
absent +
Arm cell quantity
anatomy +  and kranz +
Auricle presence
absent +
Author
Mary E. Barkworth +
Authority
(Flüggé) Hitchc. +
Awn atypical quantity
1 (?) +  and 3 (?) +
Awn orientation
arising +
Awn quantity
single +
Back shape
keeled +  and rounded +
Base architecture
pseudopetiolate +  and branching +
Base arrangement
divergent +  and parallel +
Base position
intravaginal +, extravaginal +, branching +  and basal +
Base size
swelling +
Base texture
membranous +
Base width
thick +
Blade architecture
disarticulating +  and pseudopetiolate +
Blade architecture or arrangement
non-radiate +  and radiate +
Blade length
3 cm30 mm <br />0.03 m <br /> (25 cm250 mm <br />0.25 m <br />) +
Blade position
adaxial +
Blade shape
obtuse +, convolute +  and flat +
Blade width
0.2 cm2 mm <br />0.002 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Branch architecture
secund +
Branch arrangement
divergent +
Branch atypical quantity
2 (?) +  and 4 (?) +
Branch quantity
2 +
Branch shape
triquetrous +  and spikelike +
Branch some measurement
4 cm40 mm <br />0.04 m <br /> (15 cm150 mm <br />0.15 m <br />) +
Callus development
not developed +
Caryopsis architecture or shape
cleft +
Caryopsis coloration
yellow +
Caryopsis presence
absent +
Caryopsis shape
obovate +
Caryopsis some measurement
0.18 cm1.8 mm <br />0.0018 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
Cilium length or size
sometimes longer +
Common name
Big carpetgrass +
Culm architecture
branched +  and solid +
Culm architecture or arrangement or growth form
solitary +
Culm duration
annual +
Culm growth form
climbing +
Culm growth form or location
floating +
Culm growth form or orientation
decumbent +
Culm orientation
erect +  and ascending +
Culm some measurement
30 cm300 mm <br />0.3 m <br /> (100 cm1,000 mm <br />1 m <br />) +
Culm texture
not woody +
Distal cell length or size
long +
Distal cell size or width
narrow +
Distribution
Md. +, Del. +, Miss. +, Tex. +, La. +, Ala. +, N.C. +, S.C. +, Va. +, Ark. +, Ga. +, Okla. +  and Fla. +
Embryo quantity
1/2 +
Embryo shape
waisted +
Embryo size
large +
Endosperm texture
hard +
Filament shape
capillary +
Flap character
germination +
Floret architecture
pistillate +  and staminate +
Floret arrangement
adjacent +
Floret atypical quantity
3 +
Floret length or size
sometimes longer +
Floret palea development
well-developed +
Floret palea presence
absent +
Floret palea size
reduced +
Floret quantity
2 +
Floret reproduction
bisexual +
Floret shape
compressed +  and terete +
Fusoid cell presence
absent +
Glume architecture or shape
awned +
Glume height or length or size
shorter +
Glume length or size
shorter or longer +
Glume position
subtending +
Glume quantity
2 +
Glume size
unequal +
Glume texture
membranous +
Glume variability
equal +
Hair architecture
papillose-based +
Hair architecture or shape
awned +
Hair fixation or orientation
appressed +
Hair quantity
lacking +
Hair shape
uncinate +
Hilum arrangement or course or shape
linear +
Hilum coloration or relief
punctate +
Illustration
Present +
Illustration copyright
Utah State University +
Illustrator
Linda A. Vorobik +  and Karen Klitz +
Inflorescence architecture
bracteate +  and ebracteate +
Inflorescence position
axillary +
Inflorescence position or structure subtype
terminal +
Internode architecture
solid +  and hollow +
Internode length
elongated +
Layer presence
absent +
Leaf arrangement
distichous +
Leaf margin arrangement
Overlapping (?) +
Leaf position
cauline +  and basal +
Lemma architecture or shape
awned +
Lemma coloration
hyaline +
Lemma texture
coriaceous +
Ligule architecture or pubescence or shape
ciliate +
Ligule architecture or shape
truncate +
Ligule presence
absent +
Ligule some measurement
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Ligule texture
membranous +
Lodicule fusion
free +
Lodicule height or length or size
short +
Lodicule presence
absent +
Lodicule prominence
inconspicuous +
Lodicule pubescence
glabrous +
Lodicule quantity
2 +
Lodicule shape
cuneate +
Lodicule texture
fleshy +
Lower floret architecture
staminate +
Lower floret reproduction
sterile +
Lower floret size
reduced +
Lower glume presence
absent +
Lower glume quantity
0 +  and 1/2 +
Lower lemma architecture
5-7-veined +
Lower lemma fixation or orientation
appressed +
Lower lemma pubescence
pilose +  and glabrous +
Lower palea presence
absent +
Margin arrangement
separated +
Margin coloration
hyaline +
Margin prominence or shape
flat +
Margin pubescence or relief
scabrous +
Margin shape or vernation
involute +
Microhair presence
absent +
Midrib architecture
complex +  and simple +
Node prominence
concealed +  and prominent +
Node pubescence
pubescent +  and glabrous +
Number of lower taxa
0 +
Other quantity
2 +  and 1 +
Ovary presence
absent +
Ovary pubescence
glabrous +
Palea shape
keeled +
Paleum architecture or fixation
clasping +
Panicle location
subterranean +
Panicle position
axillary +
Panicle position or structure subtype
terminal +
Papilla presence
absent +
Pedicel quantity
1 +
Pericarp arrangement
separating +
Pericarp condition or texture
dry +
Pericarp texture
dry +  and fleshy +
Rachis prominence
evident +
Reference
None +
Row quantity
2 +
Secondary position
higher +
Sheath architecture
open +
Sheath condition
closed +
Sheath pubescence
glabrous or +  and sparsely densely pilose +
Sheath shape
compressed +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V25/V25 1439.xml +
Special status
Endemic +
Spike architecture
complex +
Spike arrangement
bisexual +
Spike reproduction
unisexual +
Spikelet architecture
subsessile +  and sessile +
Spikelet architecture or arrangement or growth form
solitary +
Spikelet arrangement
in triplets +  and paired +
Spikelet character
length +
Spikelet fixation
attached +
Spikelet length
0.35 cm3.5 mm <br />0.0035 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
Spikelet presence
absent +
Spikelet quantity
1 +  and 60 +
Spikelet reproduction
unisexual +  and bisexual +
Spikelet shape
acuminate +  and ovoid-ellipsoid +
Spikelet variability
varying +
Spikelet width
1.5 +
Stamen quantity
1 +  and 3 +
Starch-grain architecture
simple +
Stigma coloration
red +
Style-branch arrangement
close +
Style-branch atypical quantity
4 +  and 1 +
Style-branch fusion
fused +  and free +
Style-branch quantity
2 (?) +
Style quantity
2 +  and 3 +
Subsidiary-cell shape
dome--shaped +  and triangular +
Synonyms
Gramineae +
Taxon family
Poaceae +
Taxon name
Axonopus furcatus +
Taxon parent
Axonopus +
Taxon rank
species +
Tissue coloration
hyaline +
Tissue texture
membranous +
Upper floret architecture
sessile +
Upper floret reproduction
bisexual +
Upper glume architecture
5-7-veined +
Upper glume presence
absent +
Upper glume pubescence
glabrous +
Upper glume size
subequal +
Upper glume texture
membranous +
Upper glume variability
equal +
Upper lemma coloration
light yellow +
Upper lemma pubescence
glabrous +
Upper lemma shape
obtuse +
Upper lemma some measurement
0.25 cm2.5 mm <br />0.0025 m <br /> (0.32 cm3.2 mm <br />0.0032 m <br />) +
Upper lemma texture
indurate +
Upper lower lemma texture
membranous +
Upper lower lemma variability
equal +
Upper palea coloration
Light yellow (?) +
Upper palea shape
obtuse +
Upper palea some measurement
0.25 cm2.5 mm <br />0.0025 m <br /> (0.32 cm3.2 mm <br />0.0032 m <br />) +
Vein presence
absent +
Vein quantity
2 (?) +
Vein size
major +
Volume
Volume 25 +
Whole organism architecture
stoloniferous +
Whole organism arrangement or pubescence
tufted +
Whole organism duration
annual +  and perennial +
Whole organism growth form
plant +
Whole organism growth form or habitat
aquatic +  and terrestrial +
Whole organism growth form or texture
herbaceous +
Whole organism reproduction
dioecious +, monoecious +  and synoecious +
Whole organism variability
various +
X chromosome atypical quantity
14 +, 12 +  and 7 +
X chromosome quantity
10 +