familyPoaceae
subfamilyPoaceae subfam. Pooideae
tribePoaceae tribe Bromeae
genusBromus
sectionBromus sect. Bromopsis
speciesBromus hallii

Bromus hallii

(Hitchc.) Saarela & P.M. Peterson
Leon E. Pavlickf
Common names: Hall's brome
Synonyms: Bromus orcuttianus var. hallii
Treatment appears in FNA Volume 24. Treatment on page 211.
Please click on the illustration for a higher resolution version.
Illustrator: Cindy Roché

Copyright: Utah State University

Plants perennial; not rhizomatous. Culms 90-150 cm, erect; nodes 1-2 (3), pubescent or puberulent; internodes usually puberulent, occasionally glabrous, pilose to densely pubescent below the nodes. Sheaths densely pubescent to pilose, hairs to 1 mm, collars pilose, hairs to 2 mm; auricles absent; ligules 0.5-2.5 mm long, sparsely to densely pubescent, obtuse, erose; blades 7.5-16.5 cm long, 3-12 mm wide, flat, densely pubescent on both surfaces. Panicles 5-16 cm, open; branches erect, ascending and appressed to slightly spreading. Spikelets 25-35 (45) mm, terete to moderately laterally compressed, with 3-7 florets. Glumes sparsely to densely pubescent; lower glumes 5-8 (9) mm, 1 (3) -veined; upper glumes (7) 8-9 mm, 3-veined, sometimes mucronate; lemmas 10-14 mm, elliptic, rounded over the midvein, backs sparsely to densely pubescent, margins pubescent, apices entire; awns 3.5-7 mm, straight, arising less than 1.5 mm below the lemma apices; anthers 3-6 mm. 2n = unknown.

Discussion

Bromus hallii grows in southern California on dry, open or shaded hillsides, rocky slopes, and in montane pine woods, from 1500-2700 m.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Bromus hallii"
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 +  and scarious +
Anther atypical quantity
2 (?) +
Anther quantity
3 +
Anther some measurement
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Apex architecture or shape
entire +
Apex pubescence
hairy +
Apex shape
rounded +, obtuse +, acute +  and subulate +
Arm cell presence
absent +
Auricle presence
absent +
Author
Leon E. Pavlickf +
Authority
(Hitchc.) Saarela & P.M. Peterson +
Awn architecture
unbranched +
Awn atypical quantity
1 (?) +  and 3 (?) +
Awn course
straight +
Awn fusion
distinct +
Awn orientation
arising +
Awn position
subterminal +  and terminal +
Awn quantity
3 +
Awn shape
geniculate +
Awn some measurement
0 cm0 mm <br />0 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Back pubescence
pubescent +
Back shape
keeled +  and rounded +
Basal floret quantity
1 +  and 2 +
Base architecture
pseudopetiolate +  and branching +
Base arrangement
close +
Base fusion
free +
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
7.5 cm75 mm <br />0.075 m <br /> (16.5 cm165 mm <br />0.165 m <br />) +
Blade prominence
not evident +
Blade prominence or shape
flat +
Blade pubescence
pubescent +
Blade shape
cross +, linear +  and narrowly lanceolate +
Blade shape or vernation
involute +
Blade width
0.3 cm3 mm <br />0.003 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Branch orientation
appressed;slightly spreading +
Branch shape
spikelike +
Callus development
developed +
Callus pubescence
glabrous +
Collar pubescence
pilose +
Common name
Hall's brome +
Culm architecture
not 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 some measurement
90 cm900 mm <br />0.9 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
Culm texture
not woody +
Distal floret size
reduced +
Distribution
Conn. +, Mass. +, N.H. +, N.J. +, N.Y. +, Calif. +, Del. +, N.C. +, Va. +, W.Va. +, Vt. +, D.C +, Wis. +, Colo. +, Kans. +, Nebr. +, Okla. +, Idaho +, Mont. +, Oreg. +, Wash. +, Wyo. +, Pacific Islands (Hawaii) +, N.Mex. +, Utah +, Maine +, R.I. +, Fla. +, Ala. +, Ark. +, Ariz. +, Ga. +, Iowa +, Ill. +, Ind. +, Ky. +, La. +, Md. +, Mich. +, Minn. +, Mo. +, Miss. +, N.Dak. +, Nev. +, Ohio +, Pa. +, S.Dak. +, Tenn. +, Tex. +, Alaska +, S.C. +, Alta. +, B.C. +, Greenland +, Man. +, N.B. +, Nfld. and Labr. +, N.S. +, N.W.T. +, Nunavut +, Ont. +, P.E.I. +, Que. +, Sask. +  and Yukon +
Embryo quantity
1/6 +
Endosperm texture
liquid +, soft +  and hard +
Filament shape
capillary +
Floret architecture
pistillate +  and staminate +
Floret arrangement
adjacent +
Floret atypical quantity
16 +  and 3 +
Floret length or size
sometimes longer +
Floret quantity
3 +  and 7 +
Floret reproduction
bisexual +
Floret shape
terete +  and laterally compressed +
Glume architecture
1-9(11)-veined +
Glume architecture or shape
awned +
Glume height or length or size
always shorter +  and usually shorter +
Glume length
lanceolate +
Glume position
subtending +
Glume presence
absent +
Glume pubescence
pubescent +
Glume quantity
1/4 +
Glume shape
mucronate +  and acute +
Glume size
unequal +
Glume variability
equal +
Hair shape
uncinate +
Hair some measurement
0 cm0 mm <br />0 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Hilum arrangement or course or shape
linear +
Hilum coloration or relief
punctate +
Hilum shape
Ovate (?) +
Illustration
Present +
Illustration copyright
Utah State University +
Illustrator
Cindy Roché +
Inflorescence architecture
compound +
Inflorescence position or structure subtype
terminal +
Inflorescence size
reduced +
Internode architecture
solid +  and hollow +
Internode presence
absent +
Internode pubescence
pilose +  and densely pubescent +
Layer presence
absent +
Leaf arrangement
distichous +
Leaf margin arrangement
Overlapping (?) +
Lemma architecture
5-13-veined +
Lemma architecture or shape
not +  and awned +
Lemma arrangement
adjacent +
Lemma arrangement or shape
elliptic +
Lemma pubescence
pubescent +  and glabrous +
Lemma shape
rounded +
Lemma some measurement
1 cm10 mm <br />0.01 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
Lemma texture
herbaceous +  and coriaceous +
Ligule architecture or relief
erose +
Ligule length
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Ligule presence
absent +
Ligule pubescence
pubescent +
Ligule shape
obtuse +
Ligule some measurement
0 cm0 mm <br />0 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Ligule texture
membranous +
Lodicule architecture
not veined +
Lodicule architecture or pubescence or shape
ciliate +
Lodicule architecture or shape
truncate +
Lodicule prominence
inconspicuous +
Lodicule pubescence
glabrous +
Lodicule quantity
2 +
Lodicule shape
lanceolate +
Lodicule texture
fleshy +  and membranous +
Lower glume architecture
1(3)-veined +
Lower glume atypical some measurement
9 +
Lower glume some measurement
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Margin pubescence
pubescent +
Midrib architecture
simple +
Node atypical quantity
3 (?) +
Node prominence
concealed +  and prominent +
Node pubescence
puberulent +  and pubescent +
Node quantity
1 +  and 2 +
Number of lower taxa
0 +
Other quantity
2 +  and 1 +
Ovary presence
absent +
Ovary pubescence
hairy +  and glabrous +
Palea architecture or pubescence or shape
ciliate +
Palea development
well-developed +
Palea height or length or size
usually shorter +
Palea presence
absent +
Palea shape
keeled +
Palea size
reduced +
Panicle architecture
open +
Panicle some measurement
5 cm50 mm <br />0.05 m <br /> (16 cm160 mm <br />0.16 m <br />) +
Papilla presence
absent +
Pericarp arrangement
separating +
Pericarp condition or texture
dry +
Pericarp texture
dry +  and fleshy +
Pseudopetiole presence
absent +
Raceme architecture
open +
Rachilla length
prolonged +
Rachis prominence
evident +
Reference
None +
Sheath architecture
open +
Sheath condition
closed +
Sheath length
full +
Sheath pubescence
densely pubescent +  and pilose +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V24/V24 294.xml +
Spike architecture
ebracteate +
Spikelet arrangement
mixed +
Spikelet atypical some measurement
45 +
Spikelet fixation
attached +
Spikelet quantity
1 +  and 60 +
Spikelet reproduction
not viviparous +
Spikelet shape
terete +  and moderately laterally compressed +
Spikelet some measurement
2.5 cm25 mm <br />0.025 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
Stamen quantity
1 +  and 3 +
Starch-grain architecture
simple +  and compound +
Style-branch atypical quantity
4 +  and 1 +
Style-branch quantity
2 (?) +  and 3 (?) +
Style quantity
2 +
Subsidiary-cell architecture
parallel-sided +
Synonyms
Bromus orcuttianus var. hallii +
Taxon family
Poaceae +
Taxon name
Bromus hallii +
Taxon parent
Bromus sect. Bromopsis +
Taxon rank
species +
Terminal floret reproduction
sexual +
Tissue coloration
hyaline +
Tissue texture
membranous +
Upper glume architecture
3-veined +
Upper glume atypical some measurement
7 +
Upper glume shape
mucronate +
Upper glume some measurement
0.8 cm8 mm <br />0.008 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Vein arrangement
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 +
X chromosome quantity
7 +