familyAsteraceae
tribeAsteraceae tribe Heliantheae
subtribeAsteraceae (tribe Heliantheae) subtribe Melampodiinae
genusMelampodium
speciesMelampodium leucanthum

Melampodium leucanthum

Torrey & A. Gray

Fl. N. Amer. 2: 271. 1842.

John L. Strother
Illustrated
Treatment appears in FNA Volume 21. Treatment on page 35. Mentioned on page 34.
Revision as of 22:36, 29 July 2020 by imported>Volume Importer
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Please click on the illustration for a higher resolution version.
Illustrator: Yevonn Wilson-Ramsey

Copyright: Flora of North America Association

Perennials or subshrubs, 12–40 (–60) cm. Leaf-blades lanceolate, linear-oblong, or linear, 20–35 (–45) × 1–10 (–12) mm, lengths 3–8+ times widths, pinnately lobed, lobes 1–6, ultimate margins entire. Peduncles 3–7 cm. Outer phyllaries 5, connate 1/2–3/5 their lengths, ovate, 5–7 mm. Ray-florets 8–13; corollas cream-white (sometimes purplish abaxially), laminae oblongelliptic, 7–13 × 2.5–8 mm. Disc-florets 25–50. Fruits 1.5–2.6 mm. 2n = 20, 40.


Phenology: Flowering Mar–Oct.
Habitat: Open sites, grasslands, roadcuts, arid or desert scrublands
Elevation: (200–)1000–2000(–2500) m

Distribution

V21-63-distribution-map.gif

Ariz., Colo., Kans., N.Mex., Okla., Tex., Mexico (Chihuahua), Mexico (Coahuila), Mexico (Sonora)

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Melampodium leucanthum"
RDF feed
2n chromosome quantity
40 +  and 20 +
Anther base shape
not tailed +, rounded +  and obtuse +
Anther dehiscence
introrse +
Anther fusion
connate +
Anther theca coloration
dark +
Apex fusion
connate +  and distinct +
Apex growth form or texture
herbaceous +
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
corymbiform +  and open +
Array development
indeterminate +  and determinate +
Author
John L. Strother +
Authority
Torrey & A. Gray +
Band architecture
continuous +
Band quantity
1 +
Base shape
decurrent +
Blade architecture
compound +  and simple +
Blade arrangement or course or shape
lance-linear +
Blade arrangement or shape
lance-elliptic +
Blade shape
lobed;rhombic;ovate;rhombic;ovate;linear-oblong;linear;lanceolate;deltate +
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
Of 1 (15+ bractlets) +
Corolla architecture
zygomorphic +
Corolla coloration
cream-white +
Cypsela architecture
monomorphic +
Cypsela architecture or shape
beaked +
Cypsela growth form
dimorphic +
Cypsela position
enclosed +
Cypsela quantity
8 +  and 20 +
Cypsela shape
obovoid +  and more or less prismatic +
Disc-floret architecture
staminate +
Disc-floret atypical quantity
70 (100) +
Disc-floret quantity
25 (50) +
Disc floret architecture
staminate +
Disc floret reproduction
fertile +  and bisexual +
Distribution
Ariz. +, Colo. +, Kans. +, N.Mex. +, Okla. +, Tex. +, Mexico (Chihuahua) +, Mexico (Coahuila) +  and Mexico (Sonora) +
Elevation
(200–)1000–2000(–2500) m +
Embryo course
straight +
Face pubescence
hairy +
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 +
Fruit some measurement
0.15 cm1.5 mm <br />0.0015 m <br /> (0.26 cm2.6 mm <br />0.0026 m <br />) +
Glomerule arrangement
singly +
Habitat
Open sites, grasslands, roadcuts, arid or desert scrublands +
Head architecture or arrangement
radiate +
Head arrangement
singly +
Head development
indeterminate +
Head reproduction
homogamous +  and heterogamous +
Illustration
Present +
Illustration copyright
Flora of North America Association +
Illustrator
Yevonn Wilson-Ramsey +
Individual head architecture
each +  and sessile +
Involucre diameter
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Involucre position relational
surrounding +
Involucre shape
hemispheric +
Lamina length
7mm;13mm +
Lamina shape
oblongelliptic +
Lamina width
2.5mm;8mm +
Leaf-blade atypical length
3.5 cm35 mm <br />0.035 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
Leaf-blade atypical width
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Leaf-blade l w ratio
3-8+ +
Leaf-blade length
2 cm20 mm <br />0.02 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
Leaf-blade shape
lobed;linear;linear-oblong;linear;linear-oblong;lanceolate +
Leaf-blade width
1mm;10mm +
Leaf architecture
sessile +  and petiolate +
Leaf arrangement
opposite +
Leaf position
cauline +
Line quantity
2 +
Lobe atypical quantity
3 (5) +
Lobe quantity
1 (6) +
Lobe shape
deltate +
Margin architecture or shape
dentate to pinnatifid or palmatifid +  and entire +
Number of lower taxa
0 +
Outer phyllary fusion
connate +
Outer phyllary lengths
1/2 (3/5) +
Outer phyllary quantity
5 +
Outer phyllary shape
ovate +
Outer phyllary some measurement
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
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 +
Peduncle some measurement
3 cm30 mm <br />0.03 m <br /> (7 cm70 mm <br />0.07 m <br />) +
Pericarp fragility
tough +
Pericarp width
thick +
Perigynium architecture or pubescence or relief
smooth +
Perigynium relief
tuberculate +
Perigynium shape
Sculpted (?) +
Perigynium texture
hardened +, coriaceous +  and scarious +
Peripheral floret presence
absent +
Peripheral floret quantity
In 1 (3+ series) +
Petal fusion
connate +
Phenology
Flowering Mar–Oct. +
Phyllary duration
persistent +
Phyllary fusion
distinct +
Phyllary life cycle
falling +
Phyllary quantity
8 +  and 25 +
Phyllary size
unequal +
Phyllary texture
Herbaceous (Chartaceous) +
Publication title
Fl. N. Amer. +
Publication year
1842 +
Ray-floret architecture
pistillate +
Ray-floret atypical quantity
3 (5) +
Ray-floret quantity
8 (13) +
Ray-floret reproduction
fertile +
Receptacle architecture
paleate +
Receptacle pubescence
bearing subulate enations +, hairy +  and bristly +
Receptacle shape
convex;conic +
Reference
None +
Root texture
fibrous +
Seed architecture
exalbuminous +
Seed quantity
1 +
Sepal variability
modifed +
Series atypical quantity
1 (2) +
Series quantity
2 +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V21 63.xml +
Special status
Illustrated +
Stamen arrangement
alternate +
Stamen atypical quantity
4 (5) +
Stamen quantity
5 +
Stem orientation
prostrate +  and erect +
Stigmatic papilla presence
absent +
Style-branch architecture
appendaged +  and truncate +
Style architecture
2-branched +
Style pubescence
hirsutulous +  and glabrous +
Style quantity
1 +
Style relief
papillate +
Synonyms
Compositae +
Taxon family
Asteraceae +
Taxon name
Melampodium leucanthum +
Taxon parent
Melampodium +
Taxon rank
species +
Throat shape
campanulate +
Tube height or length or size
shorter +
Ultimate margin architecture or shape
entire +
Ultimate margin shape
toothed +  and entire +
Volume
Volume 21 +
Whole-organism atypical some measurement
40 cm400 mm <br />0.4 m <br /> (60 cm600 mm <br />0.6 m <br />) +
Whole-organism duration
perennial +
Whole-organism some measurement
12 cm120 mm <br />0.12 m <br /> (40 cm400 mm <br />0.4 m <br />) +
Whole organism atypical some measurement
40 cm400 mm <br />0.4 m <br /> (60 cm600 mm <br />0.6 m <br />) +
Whole organism growth form
subshrub +
Whole organism some measurement
12cm (40cm) +
X chromosome quantity
12 +