familyPoaceae
subfamilyPoaceae subfam. Pooideae
tribePoaceae tribe Poeae
genusPolypogon
speciesPolypogon elongatus

Polypogon elongatus

Kunth
Mary E. Barkworth
Common names: Southern beardgrass
Treatment appears in FNA Volume 24. Treatment on page 663.
Please click on the illustration for a higher resolution version.
Illustrator: Cindy Roché

Copyright: Utah State University

Plants perennial, often flowering the first-year. Culms to 100 cm, erect or decumbent at the base. Sheaths smooth, glabrous; ligules 4-8 mm, scabridulous, lacerate; blades 10-30 cm long, 4-15 mm wide. Panicles 10-30 cm, erect or nodding, interrupted, dense; pedicels not developed; stipes 1.5-2.5 mm. Glumes 3-5 mm, hispidulous, tapering from about midlength to the acute apices, apices unlobed, awned, awns 1-3 mm; lemmas about 1.5 mm, awned, awns 1-2 mm, arising from above midlength; paleas 1/2 - 2/3 as long as the lemmas; anthers 0.5-0.7 mm. 2n = 28, 56.

Distribution

Ariz., Colo., Tex.

Discussion

Polypogon elongatus is native from Mexico to Argentina. It now grows at scattered locations in the Flora region, primarily in California.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Polypogon elongatus"
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2n chromosome quantity
56 +  and 28 +
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 +  and scarious +
Anther quantity
3 +
Anther some measurement
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
Apex architecture or shape
awned +
Apex shape
unlobed +  and acute +
Arm cell presence
absent +
Auricle presence
absent +
Author
Mary E. Barkworth +
Authority
Kunth +
Awn atypical quantity
1 (?) +  and 3 (?) +
Awn course
flexuous +
Awn orientation
arising +
Awn position
subterminal +  and terminal +
Awn pubescence
glabrous +
Awn quantity
single +
Awn shape
bent +
Awn some measurement
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Back shape
keeled +  and rounded +
Basal floret quantity
1 +  and 2 +
Base architecture
pseudopetiolate +  and branching +
Base arrangement
close +
Base fusion
not fused +
Base position
intravaginal +, extravaginal +, branching +  and basal +
Base size
swelling +
Base texture
hard +
Base width
thick +
Blade arrangement
parallel +
Blade arrangement or course or shape
linear +
Blade length
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +
Blade prominence
not evident +
Blade shape
flat +  and convolute +
Blade width
0.4 cm4 mm <br />0.004 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Branch fragility
pliable +
Branch shape
spikelike +
Branch some measurement
1 cm10 mm <br />0.01 m <br /> (?) +
Callus development
developed +
Callus pubescence
hairy +  and glabrous +
Common name
Southern beardgrass +
Culm architecture
branched +  and rooting +
Culm architecture or arrangement or growth form
solitary +
Culm duration
annual +
Culm growth form
climbing +
Culm growth form or location
floating +
Culm orientation
decumbent +  and erect +
Culm some measurement
0 cm0 mm <br />0 m <br /> (100 cm1,000 mm <br />1 m <br />) +
Culm texture
not woody +
Distal floret size
reduced +
Distribution
Ariz. +, Colo. +  and Tex. +
Embryo quantity
1/4 +  and 1/3 +
Endosperm texture
liquid +, soft +  and hard +
Filament shape
capillary +
Floret architecture
pistillate +  and staminate +
Floret arrangement
adjacent +
Floret length or size
sometimes longer +
Floret position or shape
distal +
Floret quantity
1 +
Floret reproduction
bisexual +
Floret shape
compressed +
Floret size
reduced +
Glume architecture or shape
awned +
Glume height or length or size
shorter +
Glume length or size
shorter or longer +
Glume position
subtending +
Glume presence
absent +
Glume pubescence
hispidulous +
Glume quantity
2 +
Glume shape
tapering +
Glume size
unequal +
Glume some measurement
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Glume variability
equal +
Hair shape
uncinate +
Hilum arrangement or course or shape
linear +
Hilum coloration or relief
punctate +
Hilum quantity
1/6 +  and 1/4 +
Hilum shape
Ovate (?) +
Illustration
Present +
Illustration copyright
Utah State University +
Illustrator
Cindy Roché +
Inflorescence architecture
interrupted +  and continuous +
Inflorescence density
dense +
Inflorescence position or structure subtype
terminal +
Internode architecture
hollow +
Internode presence
absent +
Layer presence
absent +
Leaf arrangement
distichous +
Leaf margin arrangement
Overlapping (?) +
Leaf position
cauline +  and basal +
Leaf quantity
No (?) +
Lemma architecture
1-3(5)-veined +
Lemma architecture or shape
awned +
Lemma height or length or size
shorter +
Lemma length or size
longer +
Lemma shape
lanceolate +  and ovate +
Lemma some measurement
1.5 cm15 mm <br />0.015 m <br /> (?) +
Lemma variability
equaling +
Ligule architecture or pubescence or shape
ciliate +
Ligule architecture or relief
erose +
Ligule coloration
hyaline +
Ligule presence
absent +
Ligule shape
lacerate +
Ligule some measurement
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Ligule texture
membranous +
Lodicule architecture
veined +
Lodicule architecture or pubescence or shape
ciliate +
Lodicule architecture or shape
truncate +
Lodicule prominence
inconspicuous +
Lodicule quantity
2 +
Lodicule shape
oblong-lanceolate +  and lanceolate +
Lodicule texture
membranous +
Midrib architecture
simple +
Node prominence
concealed +  and prominent +
Number of lower taxa
0 +
Other quantity
2 +  and 1 +
Ovary presence
absent +
Ovary pubescence
glabrous +
Palea development
well-developed +
Palea presence
absent +
Palea quantity
1/2 +  and 2/3 +
Palea shape
2-keeled +
Palea size
minute +
Panicle architecture
interrupted +
Panicle density
dense +
Panicle orientation
nodding +  and erect +
Panicle shape
spikelike +
Panicle size
reduced +
Panicle some measurement
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +
Papilla presence
absent +
Pedicel presence
absent +
Pericarp arrangement
separating +
Pericarp condition or texture
dry +
Pericarp texture
dry +  and fleshy +
Pericarp width
thin +
Pseudopetiole development
not developed +
Pseudopetiole presence
absent +
Rachilla length
not prolonged +
Rachis prominence
evident +
Reference
None +
Sheath architecture
open +
Sheath architecture or pubescence or relief
smooth +
Sheath condition
closed +
Sheath length
open +
Sheath pubescence
glabrous +
Sheath relief
scabridulous +  and smooth +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V24/V24 935.xml +
Spike architecture
ebracteate +
Spikelet arrangement
mixed +
Spikelet fixation
attached +
Spikelet presence
absent +
Spikelet quantity
1 +  and 60 +
Spikelet reproduction
viviparous +
Spikelet shape
compressed +
Spikelet some measurement
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Stamen quantity
1 +  and 3 +
Starch-grain architecture
simple +  and compound +
Stipe some measurement
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Style-branch atypical quantity
4 +  and 1 +
Style-branch quantity
2 (?) +  and 3 (?) +
Style arrangement
separate +
Style quantity
2 +
Subsidiary-cell architecture
parallel-sided +
Synonyms
Gramineae +
Taxon family
Poaceae +
Taxon name
Polypogon elongatus +
Taxon parent
Polypogon +
Taxon rank
species +
Terminal floret reproduction
sexual +
Tissue coloration
hyaline +
Tissue texture
membranous +
Vein arrangement
parallel +  and converging +
Vein presence
absent +
Vein quantity
2 (?) +
Vein size
major +
Volume
Volume 24 +
Whole organism architecture
not rhizomatous +
Whole organism arrangement or pubescence
tufted +
Whole organism duration
perennial +
Whole organism growth form
plant +
Whole organism growth form or habitat
aquatic +  and terrestrial +
Whole organism life cycle
flowering +
Whole organism structure subtype
first-year +
X chromosome quantity
7 +