familyAsteraceae
tribeAsteraceae tribe Heliantheae
subtribeAsteraceae (tribe Heliantheae) subtribe Madiinae
genusOsmadenia
speciesOsmadenia tenella

Osmadenia tenella

Nuttall

Trans. Amer. Philos. Soc., n. s. 7: 392. 1841.

Robert L. Carr, Gerald D. Carr
Illustrated
Synonyms: Calycadenia tenella (Nuttall) Torrey & A. Gray
Treatment appears in FNA Volume 21. Treatment on page 269.
Please click on the illustration for a higher resolution version.
Illustrator: Yevonn Wilson-Ramsey

Copyright: Flora of North America Association

Leaves (proximal) 1–3 (–5) cm, smaller distally. Peduncular bracts 4–7, narrowly lanceolate, 4–8 mm. Phyllaries 3.5–6.5 mm (paleae 4–6 mm) ± strigillose, strongly glandular, abaxial faces bristly, shaggy-hairy, especially margins and apices. Ray corollas tubes ca. 2.5 mm, laminae ca. 4 mm. Disc corollas 3–5 mm, lobes ± hirsute. Cypselae (rays) 1.8–2.7 mm, beaks 0.3 mm, or (discs) 2–2.5 mm; pappi of scales 4–6 mm plus scales ca. 1 mm. 2n = 18.


Phenology: Flowering spring–summer.
Habitat: Barren, often rocky, exposed hillsides, canyons, chaparral, woodlands
Elevation: 10–600(–1200) m

Distribution

V21-662-distribution-map.gif

Calif., Mexico (Baja California)

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Osmadenia tenella"
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2n chromosome quantity
18 +
Abaxial face pubescence
shaggy-hairy +  and bristly +
Anther base shape
not tailed +, rounded +  and obtuse +
Anther dehiscence
introrse +
Anther fusion
connate +
Anther theca coloration
pale +  and dark +
Apex architecture or shape
beaked +
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
cymiform +
Array architecture or fragility
loose +
Array development
indeterminate +  and determinate +
Author
Robert L. Carr +  and Gerald D. Carr +
Authority
Nuttall +
Band architecture
continuous +
Band quantity
1 +
Base shape
decurrent +
Beak position
off-center +
Beak some measurement
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Blade architecture
compound +  and simple +
Blade arrangement or course or shape
linear +
Blade arrangement or shape
linear to linear-elliptic +
Blade shape
lobed;usually spatulate;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
white +
Corollas tube some measurement
2.5 +
Cypsela architecture
monomorphic +
Cypsela architecture or shape
beaked +
Cypsela growth form
dimorphic +
Cypsela pubescence
hairy +  and glabrous +
Cypsela shape
obcompressed +
Cypsela some measurement
1.8mm;2.7mm +
Disc-floret architecture
staminate +
Disc-floret quantity
3 (10) +
Disc-floret reproduction
fertile +  and bisexual +
Disc corolla some measurement
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Disc floret architecture
staminate +
Disc floret reproduction
fertile +  and bisexual +
Distribution
Calif. +  and Mexico (Baja California) +
Elevation
10–600(–1200) m +
Embryo course
straight +
Face architecture or function or pubescence
glandular +
Face pubescence
appressed-hairy +, glabrous +  and hispidulous +
Face relief
rugose +
Face shape
clavate +
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 arrangement
singly +
Habitat
Barren, often rocky, exposed hillsides, canyons, chaparral, woodlands +
Head architecture or arrangement
radiate +
Head architecture or shape
discoid +
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
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Involucre position relational
surrounding +
Involucre shape
ovoid +
Lamina some measurement
4 cm40 mm <br />0.04 m <br /> (?) +
Leaf architecture
sessile +
Leaf arrangement
alternate +
Leaf atypical some measurement
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Leaf position
cauline +
Leaf size
smaller +
Leaf some measurement
1 cm10 mm <br />0.01 m <br /> (?) +  and 3 cm30 mm <br />0.03 m <br /> (?) +
Line quantity
2 +
Lobe atypical quantity
3 (5) +
Lobe height or length or size
shorter +
Lobe pubescence
hirsute +
Lobe quantity
5 (?) +
Lobe shape
deltate +
Margin architecture or shape
entire +
Medial blotch coloration
red +
Medial blotch prominence
prominent +
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
4 +  and 5 +
Pappus shape
lance-attenuate +  and aristate +
Peduncular bract quantity
4 (7) +
Peduncular bract shape
lanceolate +
Peduncular bract some measurement
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Pericarp fragility
tough +
Pericarp width
thick +
Peripheral floret presence
absent +
Peripheral floret quantity
In 1 (3+ series) +
Petal fusion
connate +
Phenology
Flowering spring–summer. +
Phyllary architecture or function or pubescence
glandular +
Phyllary duration
persistent +
Phyllary fusion
distinct +
Phyllary life cycle
falling +
Phyllary presence
absent +
Phyllary pubescence
strigillose +
Phyllary quantity
3 +  and 5 +
Phyllary size
unequal +
Phyllary some measurement
0.35 cm3.5 mm <br />0.0035 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
Phyllary texture
Herbaceous (Chartaceous) +
Publication title
Trans. Amer. Philos. Soc., n. s. +
Publication year
1841 +
Ray-floret architecture
pistillate +
Ray-floret presence
absent +
Ray-floret quantity
3 (5) +
Ray-floret reproduction
fertile +
Receptacle architecture
paleate +
Receptacle prominence or shape
flat +
Receptacle pubescence
glabrous +
Receptacle shape
convex;conic +
Reference
None +
Root texture
fibrous +
Scale arrangement
alternating +
Scale height or length or size
shorter +
Scale quantity
4 +  and 5 +
Scale shape
fimbriate +
Scale some measurement
1 cm10 mm <br />0.01 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
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 662.xml +
Special status
Illustrated +
Stamen arrangement
alternate +
Stamen atypical quantity
4 (5) +
Stamen quantity
5 +
Stem orientation
erect +
Style-branch architecture
appendaged +  and truncate +
Style architecture
2-branched +
Style pubescence
hirsutulous +  and glabrous +
Style quantity
1 +
Style relief
papillate +
Synonyms
Calycadenia tenella +
Tack-gland presence
absent +
Taxon family
Asteraceae +
Taxon name
Osmadenia tenella +
Taxon parent
Osmadenia +
Taxon rank
species +
Throat shape
cylindric +
Throat variability
equaling +
Tube coloration
reddish +
Tube height or length or size
shorter +
Ultimate margin shape
toothed +  and entire +
Volume
Volume 21 +
Whole-organism duration
annual +
Whole-organism some measurement
5 cm50 mm <br />0.05 m <br /> (40 cm400 mm <br />0.4 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
shrub +  and subshrub +
Whole organism some measurement
1cm (250cm) +
X chromosome quantity
9 +