familyPoaceae
subfamilyPoaceae subfam. Aristidoideae
tribePoaceae tribe Aristideae
genusAristida
speciesAristida dichotoma
varietyAristida dichotoma var. curtissii

Aristida dichotoma var. curtissii

A. Gray
Kelly W. Allred
Endemic
Synonyms: Aristida curtissii Aristida basiramea var. curtissii
Treatment appears in FNA Volume 25. Treatment on page 328.
Please click on the illustration for a higher resolution version.
Illustrator: Andy Sudkamp, Linda A. Vorobik

Copyright: Utah State University

Glumes unequal; lower glumes 5-8 (10) mm; upper glumes 7-13 mm; lemmas 6-11 mm, glabrous or scabridulous; central awns 4-8 mm; lateral awns 2-4 mm. Caryopses 4-9 mm.

Distribution

Del., D.C., Wis., W.Va., Ark., Kans., Nebr., Okla., S.Dak., Fla., Wyo., N.J., Tenn., N.C., S.C., Pa., Va., Colo., Ala., Ill., Ga., Iowa, Md., Mo., Minn., Miss., Ky.

Discussion

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Aristida dichotoma var. curtissii"
RDF feed
Abaxial ligule presence
absent +
Abaxial ligule quantity
of hairs +
Adaxial cell presence
absent +
Adaxial cell shape
bulliform +
Adaxial ligule architecture or pubescence or shape
of hairs +  and ciliate +
Adaxial ligule presence
absent +
Adaxial ligule texture
membranous +
Anther quantity
1 +  and 3 +
Anther some measurement
0.25 cm2.5 mm <br />0.0025 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Apex architecture or shape
3-awned +
Arm cell presence
absent +
Arm cell quantity
kranz +
Auricle presence
absent +
Auricle quantity
lacking +
Author
Kelly W. Allred +
Authority
A. Gray +
Awn atypical quantity
1 (?) +  and 3 (?) +
Awn base presence
absent +
Awn base size
reduced +
Awn course
straight +
Awn orientation
ascending +  and spreading +
Awn prominence
not evident +
Awn quantity
1 +
Back shape
keeled +  and rounded +
Base architecture
coiled +, disarticulating +  and twisted +
Base arrangement
close +
Base arrangement or shape
contorted +
Base position
intravaginal +, extravaginal +, branching +  and basal +
Base size
swelling +
Base texture
hard +
Base width
thick +
Beak architecture
twisted +
Beak course
straight +
Blade coloration
light green +
Blade length
3 cm30 mm <br />0.03 m <br /> (10 cm100 mm <br />0.1 m <br />) +
Blade pubescence
pilose +
Blade relief
scabridulous +
Blade shape
flat +  and folded basally +
Blade shape or vernation
involute +
Blade width
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Branch shape
spikelike +
Callus development
well-developed +
Callus pubescence
hirsute +
Callus some measurement
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
Caryopsis coloration
light-brown +
Caryopsis life cycle
falling +
Caryopsis shape
fusiform +
Caryopsis some measurement
0.4 cm4 mm <br />0.004 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Cell architecture or arrangement
non-radiate +  and radiate +
Cell position
adaxial +
Central awn architecture
coiled +
Central awn orientation
spreading +
Central awn some measurement
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Collar pubescence
glabrous +
Culm architecture
branching +
Culm architecture or arrangement or growth form
solitary +
Culm duration
annual +
Culm growth form
climbing +
Culm growth form or location
floating +
Culm orientation
erect +
Culm shape
geniculate +
Culm some measurement
15 cm150 mm <br />0.15 m <br /> (60 cm600 mm <br />0.6 m <br />) +
Culm texture
not woody +
Distribution
Del. +, D.C. +, Wis. +, W.Va. +, Ark. +, Kans. +, Nebr. +, Okla. +, S.Dak. +, Fla. +, Wyo. +, N.J. +, Tenn. +, N.C. +, S.C. +, Pa. +, Va. +, Colo. +, Ala. +, Ill. +, Ga. +, Iowa +, Md. +, Mo. +, Minn. +, Miss. +  and Ky. +
Embryo presence
absent +
Embryo quantity
cleft +
Embryo size
large +  and small +
Endosperm texture
hard +
Filament shape
capillary +
Flap character
germination +
Floret architecture
pistillate +  and staminate +
Floret length or size
sometimes longer +
Floret quantity
1 +
Floret reproduction
bisexual +
Floret shape
compressed +  and terete +
Fusoid cell presence
absent +
Glume architecture
1-veined +
Glume architecture or shape
awned +
Glume coloration
light gray +  and dark purplish or brownish +
Glume length or size
often longer +
Glume position
subtending +
Glume quantity
2 +
Glume shape
acute +  and acuminate +
Glume size
unequal +
Glume width
thin +
Hilum arrangement or course or shape
linear +
Hilum coloration or relief
punctate +
Hilum height or length or size
short +
Hilum length or size
long +
Illustration
Present +
Illustration copyright
Utah State University +
Illustrator
Linda A. Vorobik +  and Andy Sudkamp +
Inflorescence architecture
not leafy +
Inflorescence arrangement
racemose +  and paniculate +
Inflorescence length
2 cm20 mm <br />0.02 m <br /> (?) +  and 11 cm110 mm <br />0.11 m <br /> (?) +
Inflorescence position or structure subtype
terminal +
Inflorescence width
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Internode architecture
hollow +
Internode length
elongated +
Lateral awn course
straight +
Lateral awn orientation
erect +
Lateral awn prominence
obsolete +
Lateral awn size
reduced +
Lateral awn some measurement
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Layer presence
absent +
Leaf arrangement
distichous +
Leaf position
cauline +
Lemma apex shape
narrowed +
Lemma architecture
3-veined +
Lemma architecture or shape
awned +
Lemma arrangement or shape
convolute +
Lemma coloration
mottled +, light gray +  and purplish +
Lemma margin arrangement
overlapping +
Lemma pubescence
glabrous +
Lemma relief
scabridulous +
Lemma shape
fusiform +
Lemma some measurement
0.6 cm6 mm <br />0.006 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
Lemma texture
coriaceous +
Ligule presence
absent +
Ligule prominence
indistinguishable +
Ligule quantity
2 (?) +
Ligule some measurement
0 cm0 mm <br />0 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
Lodicule fusion
free +
Lodicule presence
absent +
Lodicule prominence
inconspicuous +
Lodicule pubescence
glabrous +
Lodicule quantity
2 +
Lodicule texture
membranous +
Lower glume atypical some measurement
10 +
Lower glume quantity
1/2 +
Lower glume some measurement
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Microhair presence
absent +
Midrib architecture
simple +
Midvein pubescence
appressed-puberulent +  and glabrous +
Midvein pubescence or relief
scabrous +
Midvein relief
scabridulous +
Node prominence
concealed +  and prominent +
Node pubescence
strigillose +  and glabrous +
Number of lower taxa
0 +
Other quantity
2 +  and 1 +
Ovary presence
absent +
Ovary pubescence
glabrous +
Pair quantity
1 (?) +
Palea architecture
2-veined +
Palea height or length or size
shorter +
Palea life cycle
maturity +
Palea position
concealing +
Palea presence
absent +
Palea quantity
0 +  and 1/2 +
Palea shape
keeled +
Paleum fixation
attached +
Pericarp arrangement
separating +
Pericarp condition or texture
dry +
Pericarp texture
dry +  and fleshy +
Primary branch arrangement
divaricate +  and divergent +
Primary branch fixation or orientation
appressed +
Primary branch orientation
ascending;usually appressed;ascending +
Primary branch some measurement
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Rachilla extension presence
absent +
Rachilla length
not prolonged +
Rachis prominence
evident +
Reference
None +
Sheath architecture
open +
Sheath condition
closed +
Sheath height or length or size
usually shorter +
Sheath presence
absent +
Sheath pubescence
pilose +  and glabrous +
Sheath quantity
1 (?) +  and Anatomy (?) +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V25/V25 1003.xml +
Special status
Endemic +
Spikelet architecture
pedicellate +  and subsessile +
Spikelet arrangement
overlapping +
Spikelet fixation
attached +
Spikelet quantity
1 +  and 2 +
Spikelet reproduction
bisexual +
Stamen quantity
1 +  and 3 +
Starch-grain architecture
compound +
Stomatal subsidiary-cell shape
triangular +  and dome--shaped +
Style-branch atypical quantity
4 +  and 1 +
Style-branch quantity
2 (?) +  and 3 (?) +
Style fusion
free +
Style quantity
2 +
Synonyms
Aristida curtissii +  and Aristida basiramea var. curtissii +
Taxon family
Poaceae +
Taxon name
Aristida dichotoma var. curtissii +
Taxon parent
Aristida dichotoma +
Taxon rank
variety +
Terminal awn quantity
3 +
Terminal cell architecture
thin-walled +
Terminal cell length or size
long +
Terminal cell size
slender +
Tissue coloration
hyaline +
Tissue texture
membranous +
Upper glume some measurement
0.7 cm7 mm <br />0.007 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
Upper glume variability
equaling +
Vein presence
absent +
Vein quantity
2 (?) +
Vein size
major +
Volume
Volume 25 +
Whole organism architecture
rhizomatous +
Whole organism arrangement or pubescence
tufted +
Whole organism duration
annual +
Whole organism growth form
plant +
Whole organism growth form or habitat
aquatic +  and terrestrial +
Whole organism growth form or texture
herbaceous +
X chromosome quantity
12 +  and 11 +