familyPoaceae
subfamilyPoaceae subfam. Chloridoideae
tribePoaceae tribe Cynodonteae
genusBouteloua
subgenusBouteloua subg. Chondrosum
speciesBouteloua hirsuta
subspeciesBouteloua hirsuta subsp. pectinata

Bouteloua hirsuta subsp. pectinata

(Feath.) Wipff & S.D. Jones
J.K. Wipff
Common names: Tall grama
Synonyms: Bouteloua pectinata
Treatment appears in FNA Volume 25. Treatment on page 262.
Please click on the illustration for a higher resolution version.
Illustrator: Cindy Roché, Linda A. Vorobik

Copyright: Utah State University

Plants without rhizomes or stolons. Culms 35-75 cm, erect, densely tufted, usually unbranched; nodes 3-4; internodes glabrous. Leaves mostly basal; sheaths mostly pubescent. Panicles racemose, with (2) 3-6 branches on (3) 6-18 cm rachises. Anthers 2-3.2 mm; rachilla segments subtending second florets with a distal tuft of hairs. Caryopses 1.5-2.6 mm. 2n = 20.

Discussion

Bouteloua hirsuta subsp. pectinata grows in well-drained, relatively undisturbed, calcareous soils, usually on thin-soiled limestone outcrops, at 60-500 m. Its range extends from southern Oklahoma to central Texas. Although restricted in its geographic distribution, where subsp. pectinata is sympatric with subsp. hirsuta, swarms of morphologically intermediate plants are found (Wipff and Jones 1996).

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Bouteloua hirsuta subsp. pectinata"
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2n chromosome quantity
20 +
Abaxial ligule presence
absent +
Abaxial ligule quantity
common +
Adaxial cell presence
absent +
Adaxial cell shape
bulliform +
Adaxial cell structure in adjective form
stomatal +
Adaxial ligule architecture or pubescence or shape
ciliate +
Adaxial ligule length or size
longer +
Adaxial ligule presence
absent +
Adaxial ligule texture
membranous +
Anther coloration
yellow +  and cream +
Anther quantity
1 +  and 3 +
Anther some measurement
0.2 cm2 mm <br />0.002 m <br /> (0.32 cm3.2 mm <br />0.0032 m <br />) +
Apical cell height or length or size
short +
Apical cell width
Wide (?) +
Arm cell anatomy
kranz +
Arm cell presence
absent +
Auricle presence
absent +
Author
J.K. Wipff +
Authority
(Feath.) Wipff & S.D. Jones +
Awn atypical quantity
1 (?) +  and 3 (?) +
Awn atypical some measurement
6 cm60 mm <br />0.06 m <br /> (?) +
Awn development
well-developed +
Awn height or length or size
short +
Awn orientation
arising +
Awn quantity
3 +
Awn some measurement
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Awn texture
membranous +
Back shape
keeled +  and rounded +
Base architecture
pseudopetiolate +  and branching +
Base arrangement
close +
Base fusion
not fused +
Base position
intravaginal +, extravaginal +, branching +  and basal +
Base size
swelling +
Base texture
membranous +
Base width
thick +
Blade architecture
not pseudopetiolate +
Blade architecture or arrangement
radiate +
Blade length
1 cm10 mm <br />0.01 m <br /> (30 cm300 mm <br />0.3 m <br />) +
Blade position
adaxial +
Blade pubescence
pubescent +  and glabrous +
Blade shape
flat +  and involute +
Blade width
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Branch architecture
digitate +
Branch architecture or arrangement or growth form
solitary +
Branch arrangement
racemose +
Branch atypical quantity
2 (?) +
Branch atypical some measurement
75 cm750 mm <br />0.75 m <br /> (?) +
Branch course
straight +
Branch duration
persistent +
Branch quantity
3;6 +
Branch shape
spikelike +
Branch some measurement
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Branch texture
not woody +
Caryopsis quantity
numerous +
Caryopsis some measurement
0.15 cm1.5 mm <br />0.0015 m <br /> (0.26 cm2.6 mm <br />0.0026 m <br />) +
Cell shape
triangular +  and dome--shaped +
Central awn some measurement
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Cilium architecture or pubescence or shape
ciliate +
Cilium length or size
sometimes longer +
Cilium texture
membranous +
Column quantity
single +
Common name
Tall grama +
Culm architecture
unbranched +
Culm architecture or arrangement or growth form
solitary +
Culm arrangement or pubescence
tufted +
Culm duration
annual +
Culm growth form
climbing +
Culm growth form or location
floating +
Culm orientation
erect +
Culm some measurement
35 cm350 mm <br />0.35 m <br /> (75 cm750 mm <br />0.75 m <br />) +
Culm texture
not woody +
Distal floret architecture
staminate +
Distal floret reproduction
sterile +
Distal floret size
reduced +
Distal floret variability
varying +
Distribution
Wis. +, Fla. +, Wyo. +, N.Mex. +, Tex. +, La. +, Md. +, Miss. +, N.Y. +, Nev. +, Colo. +, Kans. +, N.Dak. +, Nebr. +, Okla. +, S.Dak. +, Ark. +, Ga. +, Ill. +, Maine +, Minn. +, Mont. +, S.C. +, Utah +, Iowa +, Ariz. +, Ohio +  and Mo. +
Embryo architecture or shape
cleft +
Embryo presence
absent +
Embryo shape
not waisted +
Embryo size
large +
Endosperm texture
hard +
Filament shape
capillary +
Floret architecture
pistillate +  and staminate +
Floret arrangement
adjacent +
Floret atypical quantity
3 +
Floret height or length or size
shorter +
Floret lemma architecture
3-veined +
Floret lemma architecture or shape
bilobed +  and entire +
Floret lemma shape
4-lobed +  and trilobed +
Floret length or size
sometimes longer +
Floret palea architecture
2-veined +
Floret pubescence
pubescent +  and glabrous +
Floret quantity
1 +
Floret reproduction
bisexual +
Floret shape
round +  and compressed +
Floret size
reduced +
Fusoid cell presence
absent +
Genus quantity
1 +
Glume architecture
awn-tipped +
Glume architecture or shape
awned +
Glume height or length or size
shorter +
Glume length or size
shorter or longer +
Glume position
subtending +
Glume quantity
both +  and 1 +
Glume shape
acuminate +
Glume size
subequal +  and unequal +
Group quantity
3 +
Hair architecture
papillose-based +
Hair presence
absent +
Hair quantity
lacking +
Hair relief
coarse +
Hair shape
uncinate +
Hilum arrangement or course or shape
linear +
Hilum coloration or relief
punctate +
Hilum height or length or size
short +
Illustration
Present +
Illustration copyright
Utah State University +
Illustrator
Linda A. Vorobik +  and Cindy Roché +
Inflorescence architecture
pistillate +
Inflorescence arrangement
paniculate +  and racemose +
Inflorescence fusion
distinct +
Inflorescence position
axillary +
Inflorescence position or structure subtype
terminal +
Internode architecture
hollow +  and solid +
Internode pubescence
glabrous +
Internode shape
elongate +
Lateral awn shape
acuminate +
Lateral awn texture
membranous +
Lateral central awn length or size
longer +
Lateral central awn quantity
no +
Lateral central awn shape
acuminate +
Lateral central awn texture
membranous +
Lateral lobe texture
membranous +
Layer presence
not absent +
Leaf arrangement
distichous +
Leaf margin arrangement
Overlapping (?) +
Leaf position
basal +
Lemma architecture
5-veined +, 7-13-veined +  and 1-3-veined +
Lemma architecture or shape
3-awned +  and bilobed +
Lemma presence
absent +
Lemma size
minute +
Lemma some measurement
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Ligule architecture or pubescence or shape
ciliate +
Ligule length or size
sometimes longer +
Ligule presence
absent +
Ligule some measurement
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
Ligule texture
membranous +
Lobe texture
membranous +
Lodicule presence
absent +
Lodicule prominence
inconspicuous +
Lodicule quantity
2 +
Lower glume height or length or size
usually shorter +
Lower glume some measurement
0.14 cm1.4 mm <br />0.0014 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
Lower palea shape
ovate +
Lowest floret size
sterile +
Lowest lemma architecture or shape
1-3-awned +
Lowest lemma pubescence
pubescent +
Lowest lemma some measurement
0.2 cm2 mm <br />0.002 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
Marginal hair arrangement
adjacent +
Marginal hair fragility
stiff +
Marginal hair relief
coarse +
Microhair presence
absent +
Midrib architecture
simple +
Node prominence
concealed +  and prominent +
Node quantity
3 +  and 4 +
Number of lower taxa
0 +
Other quantity
2 +  and 1 +
Ovary pubescence
glabrous +
Palea shape
keeled +
Panicle architecture
simple +
Panicle arrangement
racemose +
Panicle branch duration
persistent +
Panicle branch height or length or size
short +
Panicle branch quantity
1 (20) +
Pericarp architecture or fragility
loose +
Pericarp arrangement
separating +
Pericarp condition or texture
dry +
Pericarp fusion
free +
Pericarp texture
dry +  and fleshy +
Raceme shape
spikelike +
Rachilla segment position
subtending +
Rachis atypical some measurement
3 cm30 mm <br />0.03 m <br /> (?) +
Rachis prominence
evident +
Rachis shape
elongate +
Rachis some measurement
6cm;18cm +
Reference
None +
Row quantity
2 +
Scale pubescence
glabrous +
Scale shape
flabellate +
Scale texture
membranous +
Sheath architecture
open +
Sheath condition
closed +
Sheath pubescence
pubescent +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V25/V25 885.xml +
Spikelet architecture
sessile +  and subsessile +
Spikelet architecture or arrangement or growth form
solitary +
Spikelet arrangement
imbricate +
Spikelet coloration
green +  and dark purple +
Spikelet density
dense +
Spikelet fixation
attached +
Spikelet fixation or orientation
appressed +
Spikelet position or shape
distal +
Spikelet presence
absent +
Spikelet prominence
rudimentary +
Spikelet quantity
20 +  and 50 +
Spikelet reproduction
bisexual +
Spikelet shape
pectinate +
Stamen quantity
1 +  and 3 +
Starch-grain architecture
compound +  and simple +
Starch-grain presence
absent +
Style-branch atypical quantity
4 +  and 1 +
Style-branch quantity
2 (?) +  and 3 (?) +
Style arrangement
separate +
Style quantity
2 +
Synonyms
Bouteloua pectinata +
Taxon architecture
staminate +
Taxon family
Poaceae +
Taxon name
Bouteloua hirsuta subsp. pectinata +
Taxon parent
Bouteloua hirsuta +
Taxon rank
subspecies +
Taxon reproduction
dioecious +
Tissue coloration
hyaline +
Tissue texture
membranous +
Upper glume some measurement
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Vein architecture
excurrent +
Vein presence
absent +
Vein quantity
7 (?) +  and 13 (?) +
Vein size
extended +
Volume
Volume 25 +
Whole organism architecture
stoloniferous +
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 reproduction
synoecious +
Whole organism variability
various +
X chromosome atypical quantity
12 +
X chromosome quantity
10 +