familyAsteraceae
tribeAsteraceae tribe Heliantheae
subtribeAsteraceae (tribe Heliantheae) subtribe Madiinae
genusCentromadia
speciesCentromadia pungens
subspeciesCentromadia pungens subsp. laevis

Centromadia pungens subsp. laevis

(D. D. Keck) B. G. Baldwin

Novon 4: 467. 1999.

Bruce G. Baldwin, John L. Strother
Basionym: Hemizonia pungens subsp. laevis D. D. Keck Madroño 3: 14. 1935
Synonyms: Hemizonia laevis (D. D. Keck) D. D. Keck
Treatment appears in FNA Volume 21. Treatment on page 277.

Leaves: margins bristly-ciliate, faces glabrous but for bristly midribs. Paleae little, if at all, exserted, apices obtuse to acute, sometimes apiculate. 2n = 18.


Phenology: Flowering Apr–Sep.
Habitat: Open, ± alkaline flats, depressions, stream banks and beds, grasslands, disturbed sites
Elevation: 90–500 m

Distribution

V21-676-distribution-map.gif

Calif., Mexico (Baja California)

Discussion

Of conservation concern.

Subspecies laevis is known only from the interior South Coast region and Peninsular Ranges.

Selected References

None.

Lower Taxa

None.
... more about "Centromadia pungens subsp. laevis"
RDF feed
2n chromosome quantity
18 +
Anther base shape
not tailed +, rounded +  and obtuse +
Anther coloration
yellow +  and brownish +
Anther dehiscence
introrse +
Anther fusion
connate +
Anther theca coloration
pale +  and dark +
Apex architecture or shape
apiculate +
Apex fusion
connate +  and distinct +
Apex growth form or texture
herbaceous +
Apex shape
obtuse;acute +
Apex size
subequal +
Apex texture
scarious +
Apical appendage presence
absent +
Apical appendage shape
usually ovate +  and lanceolate +
Appendage pubescence
hirsute +
Appendage relief
papillate +
Appendage shape
usually deltate +  and lanceolate +
Array architecture
umbelliform +, spiciform +, paniculiform +, glomerulate +  and corymbiform +
Array development
indeterminate +  and determinate +
Author
Bruce G. Baldwin +  and John L. Strother +
Authority
(D. D. Keck) B. G. Baldwin +
Band architecture
continuous +
Band quantity
1 +
Base shape
decurrent +
Basionyms
Hemizonia pungens subsp. laevis +
Blade architecture
compound +  and simple +
Blade arrangement or shape
linear to linear-elliptic +
Blade shape
oblanceolate +
Body architecture
winged;ribbed;winged;ribbed +
Body architecture or pubescence or relief
smooth +
Body relief
tuberculate +  and rugose +
Bractlet quantity
1;15 +
Branch arrangement or course or shape
linear +
Branch structure in adjective form
stigmatic +
Bristle architecture
barbellulate +  and barbellate +
Bristle shape
Plumose (?) +
Calyculus presence
absent +
Calyculus quantity
2 (12) +
Corolla architecture
zygomorphic +
Corolla coloration
yellow +
Cypsela architecture
monomorphic +
Cypsela architecture or shape
beaked +
Cypsela growth form
dimorphic +
Cypsela pubescence
hairy +  and glabrous +
Cypsela shape
fusiform +, clavate +, obpyramidal +, terete +, compressed +  and obcompressed +
Disc-floret architecture
staminate +
Disc-floret quantity
6 (200) +
Disc-floret reproduction
fertile +  and bisexual +
Disc cypsela presence
absent +
Disc floret architecture
staminate +
Disc floret reproduction
fertile +  and bisexual +
Distribution
Calif. +  and Mexico (Baja California) +
Elevation
90–500 m +
Embryo course
straight +
Face architecture or function or pubescence
glandular +
Face pubescence
glabrous +
Filament fusion
distinct +
Floret architecture
pistillate +, staminate +  and neuter +
Floret atypical quantity
5;15 +
Floret position
proximal +
Floret quantity
1;5 +
Floret reproduction
bisexual +
Fruit architecture
winged +  and beaked +
Fruit condition or texture
dry +
Fruit density
dispersed +
Glomerule architecture
umbelliform +  and spiciform-paniculiform +
Glomerule arrangement
singly +
Habitat
Open, ± alkaline flats, depressions, stream banks and beds, grasslands, disturbed sites +
Head architecture or arrangement
radiate +
Head architecture or shape
discoid +
Head arrangement
singly +
Head development
indeterminate +
Head reproduction
homogamous +  and heterogamous +
Illustration copyright
Flora of North America Association +
Illustrator
Marjorie C. Leggitt +
Individual head architecture
each +  and sessile +
Involucre diameter
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Involucre position relational
surrounding +
Involucre shape
urceolate;obconic +
Involucre some measurement
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Leaf architecture
petiolate +  and sessile +
Leaf arrangement
alternate +  and opposite +
Leaf position
cauline +
Leaf pubescence
hirsute +, scabrous +  and glabrous +
Line quantity
2 +
Lobe atypical quantity
3 (5) +
Lobe quantity
5 (?) +
Lobe shape
deltate +
Margin architecture or pubescence or shape
bristly-ciliate +
Margin architecture or shape
dentate to pinnatifid or palmatifid +  and entire +
Midrib pubescence
bristly +
Number of lower taxa
0 +
Ovary architecture
2-carpellate +
Ovary architecture or structure in adjective form
1-locular +
Ovary position
inferior +
Ovule fixation
attached +
Ovule orientation
anatropous +
Ovule quantity
1 +
Pappus duration
persistent +
Pappus life cycle
falling +
Pappus presence
absent +
Pappus quantity
of 3 +  and 12 linear , oblanceolate or subulate , scales +
Pericarp fragility
tough +
Pericarp width
thick +
Peripheral floret presence
absent +
Peripheral floret quantity
In 1 (3+ series) +
Petal fusion
connate +
Phenology
Flowering Apr–Sep. +
Phyllary duration
persistent +
Phyllary fusion
distinct +
Phyllary life cycle
falling +
Phyllary presence
absent +
Phyllary quantity
5 +  and 75 +
Phyllary size
unequal +
Phyllary texture
Herbaceous (Chartaceous) +
Proximal blade arrangement or course or shape
lance-linear +  and linear +
Proximal blade shape
1-2-pinnatifid +
Proximal leaf architecture
sessile +
Proximal leaf arrangement
alternate +  and opposite +
Publication title
Novon +
Publication year
1999 +
Ray-floret architecture
pistillate +
Ray-floret presence
absent +
Ray-floret quantity
5 (75) +
Ray-floret reproduction
fertile +
Ray cypsela shape
compressed +
Receptacle architecture
paleate +
Receptacle pubescence
setulose +
Receptacle shape
flat;convex +
Reference
None +
Root texture
fibrous +
Scale quantity
3 +  and 12 +
Scale shape
subulate +, oblanceolate +  and linear +
Seed architecture
exalbuminous +
Seed quantity
1 +
Sepal variability
modifed +
Series atypical quantity
1 (2) +
Series quantity
1 +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V21 676.xml +
Special status
Conservation concern +
Stamen arrangement
alternate +
Stamen atypical quantity
4 (5) +
Stamen quantity
5 +
Stem orientation
less erect +  and prostrate +
Style-branch architecture
appendaged +  and truncate +
Style architecture
2-branched +
Style pubescence
hirsutulous +  and glabrous +
Style quantity
1 +
Style relief
papillate +
Synonyms
Hemizonia laevis +
Tack-gland presence
absent +
Taxon family
Asteraceae +
Taxon name
Centromadia pungens subsp. laevis +
Taxon parent
Centromadia pungens +
Taxon rank
subspecies +
Throat shape
cylindric +
Throat variability
equaling +
Tube height or length or size
shorter +
Ultimate margin shape
entire +  and toothed +
Volume
Volume 21 +
Whole-organism duration
annual +
Whole-organism some measurement
10 cm100 mm <br />0.1 m <br /> (120 cm1,200 mm <br />1.2 m <br />) +
Whole organism atypical some measurement
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Whole organism growth form
plant +
Whole organism some measurement
10cm (120cm) +
X chromosome quantity
13 +