familyPoaceae
subfamilyPoaceae subfam. Panicoideae
tribePoaceae tribe Paniceae
genusDichanthelium
sectionDichanthelium sect. Lanuginosa
speciesDichanthelium ovale
subspeciesDichanthelium ovale subsp. ovale

Dichanthelium ovale subsp. ovale

Mary E. Barkworth
Synonyms: Panicum malacon
Treatment appears in FNA Volume 25. Treatment on page 429.
Please click on the illustration for a higher resolution version.
Illustrator: Hana Pazdírková, Linda A. Vorobik

Copyright: Utah State University

Basal blades 3-8 cm, rigid, with long hairs on or near the bases and margins. Culms more than 1 mm thick, stiff; lower internodes pilose; upper internodes short-pilose to nearly glabrous. Cauline sheaths with ascending hairs, hairs to 4 mm, not papillose-based: ligules 1-4 mm; blades 5-12 mm wide, firm, ascending, abaxial surfaces appressed-pubescent, adaxial surfaces nearly glabrous except for the long hairs on or near the scabridulous margins and bases. Spikelets 2.5-3 mm, ellipsoid, sparsely to densely pilose. 2n = 18.

Discussion

Dichanthelium ovale subsp. ovale grows in dry, open, sandy woods, pinelands, and sandhills along the east coast of the United States from New Jersey south¬wards, extending into the coastal plain from eastern Texas to South Carolina, and in Mexico, Honduras, Guatemala, and Nicaragua. It intergrades somewhat with subsp. pseudopubescens. Occasional long-spikelet specimens exhibit morphological characteristics of D. oligosanthes and D. commutatum.

Selected References

None.

Lower Taxa

None.

"usually distinctly longer and narrower" is not a number."decumbent" is not a number."wide" is not a number.

... more about "Dichanthelium ovale subsp. ovale"
RDF feed
2n chromosome quantity
18 +
Abaxial ligule presence
absent +
Abaxial ligule quantity
common +
Abaxial surface pubescence
appressed-pubescent +
Adaxial cell presence
absent +
Adaxial cell shape
bulliform +
Adaxial ligule architecture or pubescence or shape
ciliate +
Adaxial ligule presence
absent +
Adaxial ligule texture
membranous +
Adaxial surface pubescence
glabrous +
Anther quantity
3 +
Apex shape
rounded +  and attenuate +
Arm cell presence
absent +
Arm cell quantity
anatomy +  and kranz +
Auricle presence
absent +
Author
Mary E. Barkworth +
Authority
(Elliott) Gould & C.A. Clark +
Awn atypical quantity
1 (?) +  and 3 (?) +
Awn orientation
arising +
Awn quantity
single +
Back shape
keeled +  and rounded +
Basal blade some measurement
3 cm30 mm <br />0.03 m <br /> (?) +  and 8 cm80 mm <br />0.08 m <br /> (?) +
Basal blade texture
rigid +
Basal rosette season
winter +
Basal rosette variability
well-differentiated +
Base architecture
pseudopetiolate +  and branching +
Base architecture or shape
cormlike +
Base arrangement
divergent +  and parallel +
Base position
intravaginal +, extravaginal +, branching +  and basal +
Base shape
narrowed +  and rounded +
Base size
swelling +
Base texture
hard +
Base width
thick +
Blade architecture
disarticulating +  and pseudopetiolate +
Blade architecture or arrangement
non-radiate +  and radiate +
Blade architecture or pubescence or shape
ciliate +
Blade arrangement
fascicles +
Blade density
dense +
Blade development
developing +
Blade fusion
distinct +
Blade length
4 cm40 mm <br />0.04 m <br /> (10 cm100 mm <br />0.1 m <br />) +
Blade orientation
Ascending (?) +
Blade position
adaxial +
Blade quantity
both +  and 1 +
Blade shape
lanceolate +
Blade size
reduced +
Blade some measurement
1 cm10 mm <br />0.01 m <br /> (8 cm80 mm <br />0.08 m <br />) +
Blade texture
firm +
Blade width
0.5 cm5 mm <br />0.005 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Branch architecture
rebranching +
Branch orientation
spreading;ascending +
Branch presence
absent +
Branch pubescence
pilose +
Branch reproduction
sterile +
Branch shape
spikelike +
Branch some measurement
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Bristle presence
absent +
Bristle reproduction
sterile +
Callus development
not developed +
Caryopsis architecture or pubescence or relief
smooth +
Caryopsis architecture or shape
cleft +
Caryopsis presence
absent +
Caryopsis shape
terete +  and compressed +
Cauline leaf length or size
longer +
Cauline leaf quantity
4 (7) +
Cilium length or size
sometimes longer +
Cross-section quantity
3 (?) +
Culm architecture
branching +
Culm architecture or arrangement or growth form
solitary +
Culm duration
annual +
Culm fragility
stiff +
Culm growth form
climbing +
Culm growth form or location
floating +
Culm growth form or orientation
decumbent +  and prostrate +
Culm growth form or texture
herbaceous +
Culm orientation
spreading +  and ascending +
Culm some measurement
15 cm150 mm <br />0.15 m <br /> (60 cm600 mm <br />0.6 m <br />) +
Culm texture
woody +
Distal cell length or size
long +
Distal cell size or width
narrow +
Distribution
Del. +, Wis. +, Fla. +, Puerto Rico +, N.J. +, Tex. +, La. +, N.C. +, S.C. +, Pa. +, Ark. +, Iowa +, Ill. +, Ind. +, Md. +, Miss. +, Ohio +, Okla. +, N.Y. +, Va. +, Ala. +, Ga. +, Conn. +, Mass. +, Minn. +, Mich. +  and Ky. +
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 apex architecture
gaping +
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
not papillose-based +
Hair architecture or shape
awned +
Hair height or length or size
shorter +
Hair length or size
long +
Hair orientation
ascending +
Hair presence
absent +
Hair quantity
lacking +
Hair shape
uncinate +
Hair some measurement
0 cm0 mm <br />0 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Hilum arrangement or course or shape
linear +
Hilum coloration or relief
punctate +
Hilum shape
Oval (?) +  and Round (?) +
Illustration
Present +
Illustration copyright
Utah State University +
Illustrator
Linda A. Vorobik +  and Hana Pazdírková +
Inflorescence architecture
bracteate +  and ebracteate +
Inflorescence position
axillary +
Inflorescence position or structure subtype
terminal +
Inflorescences panicle position or structure subtype
terminal +
Internode architecture
branched +
Internode length
elongated +
Internode pubescence
glabrous +  and long-hairy +
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 derivation
true +
Ligule presence
absent +
Ligule some measurement
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 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 architecture
veined +
Lower glume quantity
1/3 +  and 1/2 +
Lower glume shape
subacute +, acute +  and triangular +
Lower internode pubescence
pilose +
Lower palea height or length or size
shorter +
Lower palea presence
absent +
Lower palea width
thin +
Margin architecture or pubescence or shape
ciliate +
Margin arrangement
separated +
Margin coloration
whitish +
Margin prominence or shape
flat +
Margin relief
scabridulous +
Margin shape or vernation
involute +
Microhair presence
absent +
Midrib architecture
complex +  and simple +
Node prominence
concealed +  and prominent +
Node pubescence
bearded +
Number of lower taxa
0 +
Other quantity
2 +  and 1 +
Ovary presence
absent +
Ovary pubescence
glabrous +
Palea shape
keeled +
Panicle location
subterranean +
Papilla presence
absent +
Pedicel quantity
1 +
Pericarp arrangement
separating +
Pericarp condition or texture
dry +
Pericarp texture
dry +  and fleshy +
Pericarp width
thin +
Primary panicle development
developing +
Primary panicle length
3 cm30 mm <br />0.03 m <br /> (10 cm100 mm <br />0.1 m <br />) +
Primary panicle reproduction
chasmogamous +
Pseudoligule arrangement
adjacent +
Rachis orientation
spreading +  and ascending +
Rachis prominence
evident +
Rachis pubescence
pilose +
Reference
None +
Secondary panicle reproduction
cleistogamous +
Secondary panicle size
reduced +
Secondary position
higher +
Secondary sheath position
included +
Secondary sheath size
small +
Sheath architecture
open +
Sheath condition
closed +
Sheath height or length or size
shorter +
Sheath pubescence
pilose +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V25/V25 1169.xml +
Spike architecture
complex +
Spike arrangement
bisexual +
Spike reproduction
unisexual +
Spikelet architecture
sessile +
Spikelet arrangement
in triplets +  and paired +
Spikelet character
length +
Spikelet fixation
attached +
Spikelet presence
absent +
Spikelet pubescence
pilose +
Spikelet quantity
1 +  and 60 +
Spikelet reproduction
unisexual +  and bisexual +
Spikelet shape
ellipsoid +
Spikelet some measurement
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Spikelet variability
varying +
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 +
Surface pubescence
pubescent +
Surface shape
convex +
Synonyms
Panicum malacon +
Taxon family
Poaceae +
Taxon name
Dichanthelium ovale subsp. ovale +
Taxon parent
Dichanthelium ovale +
Taxon rank
subspecies +
Tissue coloration
hyaline +
Tissue texture
membranous +
Upper floret architecture
sessile +
Upper floret reproduction
bisexual +
Upper floret shape
subacute +  and ellipsoid +
Upper floret size
plump +
Upper floret some measurement
0.16 cm1.6 mm <br />0.0016 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Upper glume architecture
veined +
Upper glume architecture or shape
not saccate +
Upper glume height or length or size
usually slightly shorter +
Upper glume presence
absent +
Upper glume size
subequal +
Upper internode pubescence
Short-pilose (Nearly glabrous) +
Upper lemma coloration or pubescence or relief
striate +
Upper lemma pubescence
glabrous +
Upper lemma reflectance
shiny +
Upper lemma texture
chartaceous-indurate +
Upper lower lemma architecture
veined +
Upper palea coloration or pubescence or relief
striate +
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
perennial +
Whole organism growth form
plant +  and cespitose +
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
9 +